USGS Earthquake Hazards Program

M 7.1 - The 1999 Hector Mine, California Earthquake

ci9108652 · REVIEWED · Sat, 16 Oct 1999 09:46:44 GMT · 34.6033° N, 116.2650° W

Magnitude

7.1

MW Scale

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P

PAGER Loss Impact

NO PAGER ALERT

VIII

Maximum Shaking (MMI)

8.3 - Severe

T

Tsunami Bulletin

No Tsunami Threat Warning

Esri Satellite Map & ShakeMap Visualizations

ShakeMap Intensity Heat Overlay Opacity:

70%

⏱️ 7-Day Aftershock Sequence +0.0 hrs

1x Speed 3x Speed 8x Speed

Mainshock +7 Days

Press Play or drag slider to reveal aftershocks on map Total 75 Aftershocks (M3.8+)

Modified Mercalli Intensity (MMI) Scale Legend USGS ShakeMap Classification

I

Not Felt

II-III

Weak

IV

Light

V

Moderate

VI

Strong

VII

Very Strong

VIII

Severe

IX

Violent

X+

Extreme

Epicenter: 34.6033° N, 116.2650° W · Depth: 13.7 km

Official USGS NEIC Macroseismic Instrumental Intensity Map Open High-Resolution Image

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🏛️ Regional Earthquakes Archive Prioritized by Magnitude

Major historical shocks (M6.0+ & M7.0+ up to 300 km) and significant regional events

Regional earthquakes prioritized by highest magnitude (major past ruptures and strong historical analogs). Click any row (▾ Map) to reveal an interactive satellite location map with distance comparison to the mainshock epicenter.

SORT:

MAG	Date & Time (UTC)	Location	Depth
7.5	Jul 21, 1952 11:52 AM	The 1952 Kern County, California Earthquake	6.0 km
🔴 Mainshock  ·  🔵 Past Quake  ·  ┄ Vector 34.9582°, -118.9980° Spatial Relative Telemetry M 7.5 Distance to Epicenter 253 km (157 mi) Direction W Focal Depth 6.0 km (3.7 mi) Origin Timestamp Jul 21, 1952 11:52 AM UTC
7.3	Jun 28, 1992 11:57 AM	The 1992 Landers, California Earthquake	-0.1 km
🔴 Mainshock  ·  🔵 Past Quake  ·  ┄ Vector 34.2000°, -116.4370° Spatial Relative Telemetry M 7.3 Distance to Epicenter 48 km (30 mi) Direction SSW Focal Depth -0.1 km (-0.1 mi) Origin Timestamp Jun 28, 1992 11:57 AM UTC
7.2	Apr 4, 2010 10:40 PM	The 2010 Sierra El Mayor, B.C., Mexico Earthquake	10.0 km
🔴 Mainshock  ·  🔵 Past Quake  ·  ┄ Vector 32.2862°, -115.2953° Spatial Relative Telemetry M 7.2 Distance to Epicenter 273 km (170 mi) Direction SSE Focal Depth 10.0 km (6.2 mi) Origin Timestamp Apr 4, 2010 10:40 PM UTC
7.1	Jul 6, 2019 03:19 AM	Ridgecrest Earthquake Sequence	8.0 km
🔴 Mainshock  ·  🔵 Past Quake  ·  ┄ Vector 35.7695°, -117.5993° Spatial Relative Telemetry M 7.1 Distance to Epicenter 178 km (111 mi) Direction NW Focal Depth 8.0 km (5.0 mi) Origin Timestamp Jul 6, 2019 03:19 AM UTC
6.9	May 19, 1940 04:36 AM	The 1940 Imperial Valley, California Earthquake	6.0 km
🔴 Mainshock  ·  🔵 Past Quake  ·  ┄ Vector 32.8442°, -115.3810° Spatial Relative Telemetry M 6.9 Distance to Epicenter 212 km (132 mi) Direction SSE Focal Depth 6.0 km (3.7 mi) Origin Timestamp May 19, 1940 04:36 AM UTC
6.7	Jan 17, 1994 12:30 PM	Northridge, California, earthquake	18.2 km
🔴 Mainshock  ·  🔵 Past Quake  ·  ┄ Vector 34.2130°, -118.5370° Spatial Relative Telemetry M 6.7 Distance to Epicenter 213 km (132 mi) Direction W Focal Depth 18.2 km (11.3 mi) Origin Timestamp Jan 17, 1994 12:30 PM UTC
6.7	Apr 21, 1918 10:32 PM	The 1918 San Jacinto, California Earthquake	10.0 km
🔴 Mainshock  ·  🔵 Past Quake  ·  ┄ Vector 33.7620°, -116.9720° Spatial Relative Telemetry M 6.7 Distance to Epicenter 114 km (71 mi) Direction SW Focal Depth 10.0 km (6.2 mi) Origin Timestamp Apr 21, 1918 10:32 PM UTC
6.6	Nov 24, 1987 01:15 PM	The 1987 Superstition Hills, California Earthquake	11.2 km
🔴 Mainshock  ·  🔵 Past Quake  ·  ┄ Vector 33.0150°, -115.8520° Spatial Relative Telemetry M 6.6 Distance to Epicenter 181 km (112 mi) Direction SSE Focal Depth 11.2 km (7.0 mi) Origin Timestamp Nov 24, 1987 01:15 PM UTC
6.6	Feb 9, 1971 02:00 PM	1971 San Fernando Earthquake, California	8.9 km
🔴 Mainshock  ·  🔵 Past Quake  ·  ┄ Vector 34.4160°, -118.3700° Spatial Relative Telemetry M 6.6 Distance to Epicenter 194 km (121 mi) Direction W Focal Depth 8.9 km (5.5 mi) Origin Timestamp Feb 9, 1971 02:00 PM UTC
6.6	Apr 9, 1968 02:28 AM	The 1968 Borrego Mountain, California Earthquake	10.0 km
🔴 Mainshock  ·  🔵 Past Quake  ·  ┄ Vector 33.1798°, -116.1030° Spatial Relative Telemetry M 6.6 Distance to Epicenter 159 km (99 mi) Direction S Focal Depth 10.0 km (6.2 mi) Origin Timestamp Apr 9, 1968 02:28 AM UTC
6.6	Oct 21, 1942 04:22 PM	The 1942 Fish Creek Mountains, California Earthquake	6.0 km
🔴 Mainshock  ·  🔵 Past Quake  ·  ┄ Vector 32.9753°, -115.7853° Spatial Relative Telemetry M 6.6 Distance to Epicenter 186 km (116 mi) Direction SSE Focal Depth 6.0 km (3.7 mi) Origin Timestamp Oct 21, 1942 04:22 PM UTC
6.5	Apr 10, 1947 03:58 PM	The 1947 Manix, California Earthquake	6.0 km
🔴 Mainshock  ·  🔵 Past Quake  ·  ┄ Vector 34.9828°, -116.5315° Spatial Relative Telemetry M 6.5 Distance to Epicenter 49 km (30 mi) Direction NNW Focal Depth 6.0 km (3.7 mi) Origin Timestamp Apr 10, 1947 03:58 PM UTC
6.4	Jul 4, 2019 05:33 PM	Ridgecrest Earthquake Sequence	10.5 km
🔴 Mainshock  ·  🔵 Past Quake  ·  ┄ Vector 35.7053°, -117.5038° Spatial Relative Telemetry M 6.4 Distance to Epicenter 166 km (103 mi) Direction NW Focal Depth 10.5 km (6.5 mi) Origin Timestamp Jul 4, 2019 05:33 PM UTC
6.4	Oct 15, 1979 11:16 PM	The 1979 Imperial Valley Earthquake, California-Baja California	15.0 km
🔴 Mainshock  ·  🔵 Past Quake  ·  ┄ Vector 32.6673°, -115.3592° Spatial Relative Telemetry M 6.4 Distance to Epicenter 231 km (144 mi) Direction SSE Focal Depth 15.0 km (9.3 mi) Origin Timestamp Oct 15, 1979 11:16 PM UTC
6.4	Oct 28, 1975 02:30 PM	52 km NE of Beatty, Nevada	10.0 km
🔴 Mainshock  ·  🔵 Past Quake  ·  ┄ Vector 37.2900°, -116.4110° Spatial Relative Telemetry M 6.4 Distance to Epicenter 299 km (186 mi) Direction N Focal Depth 10.0 km (6.2 mi) Origin Timestamp Oct 28, 1975 02:30 PM UTC
6.4	Mar 19, 1954 09:54 AM	The 1954 San Jacinto Fault, California Earthquake	6.0 km
🔴 Mainshock  ·  🔵 Past Quake  ·  ┄ Vector 33.2985°, -116.0805° Spatial Relative Telemetry M 6.4 Distance to Epicenter 146 km (91 mi) Direction S Focal Depth 6.0 km (3.7 mi) Origin Timestamp Mar 19, 1954 09:54 AM UTC
6.4	Dec 31, 1934 06:45 PM	5km S of Alberto Oviedo Mota, B.C., MX	6.0 km
🔴 Mainshock  ·  🔵 Past Quake  ·  ┄ Vector 32.1800°, -115.1755° Spatial Relative Telemetry M 6.4 Distance to Epicenter 288 km (179 mi) Direction SSE Focal Depth 6.0 km (3.7 mi) Origin Timestamp Dec 31, 1934 06:45 PM UTC
6.4	Mar 11, 1933 01:54 AM	The 1933 Long Beach, California Earthquake	6.0 km
🔴 Mainshock  ·  🔵 Past Quake  ·  ┄ Vector 33.6308°, -117.9995° Spatial Relative Telemetry M 6.4 Distance to Epicenter 193 km (120 mi) Direction WSW Focal Depth 6.0 km (3.7 mi) Origin Timestamp Mar 11, 1933 01:54 AM UTC
6.3	Jun 28, 1992 03:05 PM	The 1992 Big Bear, California Earthquake	3.6 km
🔴 Mainshock  ·  🔵 Past Quake  ·  ┄ Vector 34.2030°, -116.8270° Spatial Relative Telemetry M 6.3 Distance to Epicenter 68 km (42 mi) Direction SW Focal Depth 3.6 km (2.2 mi) Origin Timestamp Jun 28, 1992 03:05 PM UTC
6.3	Jun 9, 1980 03:28 AM	5km SE of Alberto Oviedo Mota, B.C., MX	6.0 km
🔴 Mainshock  ·  🔵 Past Quake  ·  ┄ Vector 32.1998°, -115.1222° Spatial Relative Telemetry M 6.3 Distance to Epicenter 288 km (179 mi) Direction SSE Focal Depth 6.0 km (3.7 mi) Origin Timestamp Jun 9, 1980 03:28 AM UTC
6.3	Feb 12, 1976 02:45 PM	46 km NNE of Beatty, Nevada	10.0 km
🔴 Mainshock  ·  🔵 Past Quake  ·  ┄ Vector 37.2710°, -116.4880° Spatial Relative Telemetry M 6.3 Distance to Epicenter 297 km (185 mi) Direction N Focal Depth 10.0 km (6.2 mi) Origin Timestamp Feb 12, 1976 02:45 PM UTC
6.3	Mar 15, 1946 01:49 PM	The 1946 Walker Pass, California Earthquake	6.0 km
🔴 Mainshock  ·  🔵 Past Quake  ·  ┄ Vector 35.7023°, -117.9442° Spatial Relative Telemetry M 6.3 Distance to Epicenter 196 km (122 mi) Direction NW Focal Depth 6.0 km (3.7 mi) Origin Timestamp Mar 15, 1946 01:49 PM UTC
6.3	Apr 19, 1906 12:30 AM	The 1906 Imperial Valley, California Earthquake	10.0 km
🔴 Mainshock  ·  🔵 Past Quake  ·  ┄ Vector 32.9000°, -115.5000° Spatial Relative Telemetry M 6.3 Distance to Epicenter 202 km (126 mi) Direction SSE Focal Depth 10.0 km (6.2 mi) Origin Timestamp Apr 19, 1906 12:30 AM UTC
6.2	Nov 24, 1987 01:54 AM	The 1987 Elmore Ranch, California Earthquake	10.9 km
🔴 Mainshock  ·  🔵 Past Quake  ·  ┄ Vector 33.0900°, -115.7920° Spatial Relative Telemetry M 6.2 Distance to Epicenter 174 km (108 mi) Direction SSE Focal Depth 10.9 km (6.8 mi) Origin Timestamp Nov 24, 1987 01:54 AM UTC
6.2	Jan 3, 1976 07:15 PM	57 km NE of Beatty, Nevada	10.0 km
🔴 Mainshock  ·  🔵 Past Quake  ·  ┄ Vector 37.2970°, -116.3330° Spatial Relative Telemetry M 6.2 Distance to Epicenter 300 km (186 mi) Direction N Focal Depth 10.0 km (6.2 mi) Origin Timestamp Jan 3, 1976 07:15 PM UTC
6.2	Jun 26, 1975 12:30 PM	53 km NE of Beatty, Nevada	10.0 km
🔴 Mainshock  ·  🔵 Past Quake  ·  ┄ Vector 37.2790°, -116.3690° Spatial Relative Telemetry M 6.2 Distance to Epicenter 298 km (185 mi) Direction N Focal Depth 10.0 km (6.2 mi) Origin Timestamp Jun 26, 1975 12:30 PM UTC
6.2	Jul 23, 1923 07:30 AM	3 km SE of San Bernardino, California	5.0 km
🔴 Mainshock  ·  🔵 Past Quake  ·  ┄ Vector 34.0890°, -117.2590° Spatial Relative Telemetry M 6.2 Distance to Epicenter 108 km (67 mi) Direction WSW Focal Depth 5.0 km (3.1 mi) Origin Timestamp Jul 23, 1923 07:30 AM UTC
6.1	Apr 23, 1992 04:50 AM	The 1992 Joshua Tree, California Earthquake	11.6 km
🔴 Mainshock  ·  🔵 Past Quake  ·  ┄ Vector 33.9600°, -116.3170° Spatial Relative Telemetry M 6.1 Distance to Epicenter 72 km (45 mi) Direction S Focal Depth 11.6 km (7.2 mi) Origin Timestamp Apr 23, 1992 04:50 AM UTC
6.1	Mar 17, 1976 02:15 PM	55 km NE of Beatty, Nevada	10.0 km
🔴 Mainshock  ·  🔵 Past Quake  ·  ┄ Vector 37.2560°, -116.3120° Spatial Relative Telemetry M 6.1 Distance to Epicenter 295 km (183 mi) Direction N Focal Depth 10.0 km (6.2 mi) Origin Timestamp Mar 17, 1976 02:15 PM UTC
6.1	Jun 6, 1973 01:00 PM	52 km NE of Beatty, Nevada	10.0 km
🔴 Mainshock  ·  🔵 Past Quake  ·  ┄ Vector 37.2450°, -116.3460° Spatial Relative Telemetry M 6.1 Distance to Epicenter 294 km (183 mi) Direction N Focal Depth 10.0 km (6.2 mi) Origin Timestamp Jun 6, 1973 01:00 PM UTC
6.1	Nov 12, 1954 12:26 PM	30km ENE of Ensenada, B.C., MX	6.0 km
🔴 Mainshock  ·  🔵 Past Quake  ·  ┄ Vector 31.9343°, -116.3127° Spatial Relative Telemetry M 6.1 Distance to Epicenter 297 km (185 mi) Direction S Focal Depth 6.0 km (3.7 mi) Origin Timestamp Nov 12, 1954 12:26 PM UTC
6.1	Jan 1, 1927 09:13 AM	49 km SSE of Rumorosa, Mexico	10.0 km
🔴 Mainshock  ·  🔵 Past Quake  ·  ┄ Vector 32.1530°, -115.7640° Spatial Relative Telemetry M 6.1 Distance to Epicenter 276 km (171 mi) Direction S Focal Depth 10.0 km (6.2 mi) Origin Timestamp Jan 1, 1927 09:13 AM UTC
6.0	Jul 8, 1986 09:20 AM	The 1986 North Palm Springs, California Earthquake	9.5 km
🔴 Mainshock  ·  🔵 Past Quake  ·  ┄ Vector 33.9990°, -116.6080° Spatial Relative Telemetry M 6.0 Distance to Epicenter 74 km (46 mi) Direction SSW Focal Depth 9.5 km (5.9 mi) Origin Timestamp Jul 8, 1986 09:20 AM UTC
6.0	Feb 14, 1976 11:30 AM	47 km NE of Beatty, Nevada	10.0 km
🔴 Mainshock  ·  🔵 Past Quake  ·  ┄ Vector 37.2430°, -116.4200° Spatial Relative Telemetry M 6.0 Distance to Epicenter 294 km (183 mi) Direction N Focal Depth 10.0 km (6.2 mi) Origin Timestamp Feb 14, 1976 11:30 AM UTC
6.0	Nov 20, 1975 03:00 PM	49 km NE of Beatty, Nevada	10.0 km
🔴 Mainshock  ·  🔵 Past Quake  ·  ┄ Vector 37.2250°, -116.3680° Spatial Relative Telemetry M 6.0 Distance to Epicenter 292 km (181 mi) Direction N Focal Depth 10.0 km (6.2 mi) Origin Timestamp Nov 20, 1975 03:00 PM UTC
6.0	May 14, 1975 02:00 PM	42 km NE of Beatty, Nevada	10.0 km
🔴 Mainshock  ·  🔵 Past Quake  ·  ┄ Vector 37.2210°, -116.4740° Spatial Relative Telemetry M 6.0 Distance to Epicenter 292 km (181 mi) Direction N Focal Depth 10.0 km (6.2 mi) Origin Timestamp May 14, 1975 02:00 PM UTC
6.0	Jan 24, 1951 07:16 AM	14km WNW of Tecolots, B.C., MX	6.0 km
🔴 Mainshock  ·  🔵 Past Quake  ·  ┄ Vector 32.6220°, -115.1192° Spatial Relative Telemetry M 6.0 Distance to Epicenter 245 km (152 mi) Direction SSE Focal Depth 6.0 km (3.7 mi) Origin Timestamp Jan 24, 1951 07:16 AM UTC
6.0	Dec 4, 1948 11:43 PM	The 1948 Desert Hot Springs, California Earthquake	6.0 km
🔴 Mainshock  ·  🔵 Past Quake  ·  ┄ Vector 33.9833°, -116.3308° Spatial Relative Telemetry M 6.0 Distance to Epicenter 69 km (43 mi) Direction S Focal Depth 6.0 km (3.7 mi) Origin Timestamp Dec 4, 1948 11:43 PM UTC
6.0	Mar 25, 1937 04:49 PM	16km WSW of Oasis, CA	6.0 km
🔴 Mainshock  ·  🔵 Past Quake  ·  ┄ Vector 33.4000°, -116.2500° Spatial Relative Telemetry M 6.0 Distance to Epicenter 134 km (83 mi) Direction S Focal Depth 6.0 km (3.7 mi) Origin Timestamp Mar 25, 1937 04:49 PM UTC
6.0	Jan 1, 1927 08:16 AM	19 km S of Progreso, Mexico	10.0 km
🔴 Mainshock  ·  🔵 Past Quake  ·  ┄ Vector 32.4050°, -115.5490° Spatial Relative Telemetry M 6.0 Distance to Epicenter 253 km (157 mi) Direction SSE Focal Depth 10.0 km (6.2 mi) Origin Timestamp Jan 1, 1927 08:16 AM UTC
6.0	Oct 23, 1916 02:44 AM	Tejon Pass, California	10.0 km
🔴 Mainshock  ·  🔵 Past Quake  ·  ┄ Vector 34.9000°, -118.9000° Spatial Relative Telemetry M 6.0 Distance to Epicenter 243 km (151 mi) Direction W Focal Depth 10.0 km (6.2 mi) Origin Timestamp Oct 23, 1916 02:44 AM UTC
6.0	Jun 23, 1915 03:59 AM	The 1915 Imperial Valley, California Earthquakes (First Major Event)	10.0 km
🔴 Mainshock  ·  🔵 Past Quake  ·  ┄ Vector 32.8000°, -115.5000° Spatial Relative Telemetry M 6.0 Distance to Epicenter 213 km (132 mi) Direction SSE Focal Depth 10.0 km (6.2 mi) Origin Timestamp Jun 23, 1915 03:59 AM UTC
6.0	May 15, 1910 03:47 PM	The 1910 Lake Elsinore, California Earthquake	10.0 km
🔴 Mainshock  ·  🔵 Past Quake  ·  ┄ Vector 33.7000°, -117.4000° Spatial Relative Telemetry M 6.0 Distance to Epicenter 145 km (90 mi) Direction SW Focal Depth 10.0 km (6.2 mi) Origin Timestamp May 15, 1910 03:47 PM UTC
6.0	Nov 4, 1908 08:37 AM	Death Valley area, California	10.0 km
🔴 Mainshock  ·  🔵 Past Quake  ·  ┄ Vector 36.0000°, -117.0000° Spatial Relative Telemetry M 6.0 Distance to Epicenter 169 km (105 mi) Direction NNW Focal Depth 10.0 km (6.2 mi) Origin Timestamp Nov 4, 1908 08:37 AM UTC
5.9	Jan 17, 1994 12:31 PM	1km ENE of Granada Hills, California	5.3 km
🔴 Mainshock  ·  🔵 Past Quake  ·  ┄ Vector 34.2750°, -118.4930° Spatial Relative Telemetry M 5.9 Distance to Epicenter 208 km (129 mi) Direction W Focal Depth 5.3 km (3.3 mi) Origin Timestamp Jan 17, 1994 12:31 PM UTC
5.9	Oct 13, 1988 02:00 PM	66 km ENE of Beatty, Nevada	10.0 km
🔴 Mainshock  ·  🔵 Past Quake  ·  ┄ Vector 37.0890°, -116.0490° Spatial Relative Telemetry M 5.9 Distance to Epicenter 277 km (172 mi) Direction N Focal Depth 10.0 km (6.2 mi) Origin Timestamp Oct 13, 1988 02:00 PM UTC
5.9	Oct 1, 1987 02:42 PM	The 1987 Whittier Narrows, California Earthquake	14.6 km
🔴 Mainshock  ·  🔵 Past Quake  ·  ┄ Vector 34.0610°, -118.0790° Spatial Relative Telemetry M 5.9 Distance to Epicenter 177 km (110 mi) Direction WSW Focal Depth 14.6 km (9.1 mi) Origin Timestamp Oct 1, 1987 02:42 PM UTC
5.9	Aug 13, 1987 02:00 PM	63 km NNW of Indian Springs, Nevada	10.0 km
🔴 Mainshock  ·  🔵 Past Quake  ·  ┄ Vector 37.0610°, -116.0450° Spatial Relative Telemetry M 5.9 Distance to Epicenter 274 km (170 mi) Direction N Focal Depth 10.0 km (6.2 mi) Origin Timestamp Aug 13, 1987 02:00 PM UTC
5.9	Mar 1, 1984 05:45 PM	64 km NNW of Indian Springs, Nevada	10.0 km
🔴 Mainshock  ·  🔵 Past Quake  ·  ┄ Vector 37.0660°, -116.0460° Spatial Relative Telemetry M 5.9 Distance to Epicenter 275 km (171 mi) Direction N Focal Depth 10.0 km (6.2 mi) Origin Timestamp Mar 1, 1984 05:45 PM UTC
5.9	Jan 28, 1982 04:00 PM	66 km ENE of Beatty, Nevada	10.0 km
🔴 Mainshock  ·  🔵 Past Quake  ·  ┄ Vector 37.0910°, -116.0510° Spatial Relative Telemetry M 5.9 Distance to Epicenter 277 km (172 mi) Direction N Focal Depth 10.0 km (6.2 mi) Origin Timestamp Jan 28, 1982 04:00 PM UTC
5.9	Nov 10, 1916 09:11 AM	Death Valley area, California	10.0 km
🔴 Mainshock  ·  🔵 Past Quake  ·  ┄ Vector 36.0000°, -117.0000° Spatial Relative Telemetry M 5.9 Distance to Epicenter 169 km (105 mi) Direction NNW Focal Depth 10.0 km (6.2 mi) Origin Timestamp Nov 10, 1916 09:11 AM UTC
5.9	Jun 23, 1915 04:56 AM	The 1915 Imperial Valley, California Earthquakes (Second Major Event)	10.0 km
🔴 Mainshock  ·  🔵 Past Quake  ·  ┄ Vector 32.8000°, -115.5000° Spatial Relative Telemetry M 5.9 Distance to Epicenter 213 km (132 mi) Direction SSE Focal Depth 10.0 km (6.2 mi) Origin Timestamp Jun 23, 1915 04:56 AM UTC
5.8	Jun 24, 2020 05:40 PM	18km SSE of Lone Pine, CA	4.7 km
🔴 Mainshock  ·  🔵 Past Quake  ·  ┄ Vector 36.4468°, -117.9752° Spatial Relative Telemetry M 5.8 Distance to Epicenter 257 km (160 mi) Direction NW Focal Depth 4.7 km (2.9 mi) Origin Timestamp Jun 24, 2020 05:40 PM UTC
5.8	Dec 30, 2009 06:48 PM	12km N of Delta, B.C., MX	6.0 km
🔴 Mainshock  ·  🔵 Past Quake  ·  ┄ Vector 32.4640°, -115.1892° Spatial Relative Telemetry M 5.8 Distance to Epicenter 258 km (160 mi) Direction SSE Focal Depth 6.0 km (3.7 mi) Origin Timestamp Dec 30, 2009 06:48 PM UTC
5.8	Oct 16, 1999 09:59 AM	13km WSW of Ludlow, CA	13.9 km
🔴 Mainshock  ·  🔵 Past Quake  ·  ┄ Vector 34.6782°, -116.2895° Spatial Relative Telemetry M 5.8 Distance to Epicenter 9 km (6 mi) Direction NNW Focal Depth 13.9 km (8.6 mi) Origin Timestamp Oct 16, 1999 09:59 AM UTC
5.8	Sep 20, 1995 11:27 PM	16km NNE of Ridgecrest, California	4.7 km
🔴 Mainshock  ·  🔵 Past Quake  ·  ┄ Vector 35.7610°, -117.6380° Spatial Relative Telemetry M 5.8 Distance to Epicenter 179 km (111 mi) Direction NW Focal Depth 4.7 km (2.9 mi) Origin Timestamp Sep 20, 1995 11:27 PM UTC
5.8	Jun 29, 1992 10:14 AM	47 km ESE of Beatty, Nevada	8.8 km
🔴 Mainshock  ·  🔵 Past Quake  ·  ┄ Vector 36.7050°, -116.2930° Spatial Relative Telemetry M 5.8 Distance to Epicenter 234 km (145 mi) Direction N Focal Depth 8.8 km (5.5 mi) Origin Timestamp Jun 29, 1992 10:14 AM UTC
5.8	Jun 28, 1992 12:00 PM	3km NE of Yucca Valley, California	-1.1 km
🔴 Mainshock  ·  🔵 Past Quake  ·  ┄ Vector 34.1310°, -116.4080° Spatial Relative Telemetry M 5.8 Distance to Epicenter 54 km (34 mi) Direction SSW Focal Depth -1.1 km (-0.7 mi) Origin Timestamp Jun 28, 1992 12:00 PM UTC
5.8	Jun 28, 1991 02:43 PM	The 1991 Sierra Madre, California Earthquake	8.0 km
🔴 Mainshock  ·  🔵 Past Quake  ·  ┄ Vector 34.2700°, -117.9930° Spatial Relative Telemetry M 5.8 Distance to Epicenter 163 km (101 mi) Direction WSW Focal Depth 8.0 km (5.0 mi) Origin Timestamp Jun 28, 1991 02:43 PM UTC
5.8	Nov 14, 1986 04:00 PM	66 km SSW of Rachel, Nevada	10.0 km
🔴 Mainshock  ·  🔵 Past Quake  ·  ┄ Vector 37.1000°, -116.0480° Spatial Relative Telemetry M 5.8 Distance to Epicenter 278 km (173 mi) Direction N Focal Depth 10.0 km (6.2 mi) Origin Timestamp Nov 14, 1986 04:00 PM UTC
5.8	May 31, 1984 01:04 PM	65 km SSW of Rachel, Nevada	10.0 km
🔴 Mainshock  ·  🔵 Past Quake  ·  ┄ Vector 37.1030°, -116.0480° Spatial Relative Telemetry M 5.8 Distance to Epicenter 279 km (173 mi) Direction N Focal Depth 10.0 km (6.2 mi) Origin Timestamp May 31, 1984 01:04 PM UTC
5.8	Apr 26, 1981 12:09 PM	The 1981 Westmorland, California Earthquake	18.9 km
🔴 Mainshock  ·  🔵 Past Quake  ·  ┄ Vector 33.0955°, -115.6245° Spatial Relative Telemetry M 5.8 Distance to Epicenter 178 km (111 mi) Direction SSE Focal Depth 18.9 km (11.7 mi) Origin Timestamp Apr 26, 1981 12:09 PM UTC
5.8	Oct 16, 1979 06:58 AM	3km NW of Brawley, CA	14.2 km
🔴 Mainshock  ·  🔵 Past Quake  ·  ┄ Vector 32.9987°, -115.5575° Spatial Relative Telemetry M 5.8 Distance to Epicenter 190 km (118 mi) Direction SSE Focal Depth 14.2 km (8.8 mi) Origin Timestamp Oct 16, 1979 06:58 AM UTC
5.8	Sep 6, 1979 03:00 PM	65 km ENE of Beatty, Nevada	10.0 km
🔴 Mainshock  ·  🔵 Past Quake  ·  ┄ Vector 37.0880°, -116.0530° Spatial Relative Telemetry M 5.8 Distance to Epicenter 277 km (172 mi) Direction N Focal Depth 10.0 km (6.2 mi) Origin Timestamp Sep 6, 1979 03:00 PM UTC
5.8	Mar 17, 1976 02:45 PM	65 km SSW of Rachel, Nevada	10.0 km
🔴 Mainshock  ·  🔵 Past Quake  ·  ┄ Vector 37.1070°, -116.0520° Spatial Relative Telemetry M 5.8 Distance to Epicenter 279 km (173 mi) Direction N Focal Depth 10.0 km (6.2 mi) Origin Timestamp Mar 17, 1976 02:45 PM UTC
5.8	Feb 4, 1976 02:20 PM	64 km NNW of Indian Springs, Nevada	10.0 km
🔴 Mainshock  ·  🔵 Past Quake  ·  ┄ Vector 37.0690°, -116.0300° Spatial Relative Telemetry M 5.8 Distance to Epicenter 275 km (171 mi) Direction N Focal Depth 10.0 km (6.2 mi) Origin Timestamp Feb 4, 1976 02:20 PM UTC
5.8	Aug 30, 1974 03:00 PM	62 km SSW of Rachel, Nevada	10.0 km
🔴 Mainshock  ·  🔵 Past Quake  ·  ┄ Vector 37.1500°, -116.0830° Spatial Relative Telemetry M 5.8 Distance to Epicenter 284 km (176 mi) Direction N Focal Depth 10.0 km (6.2 mi) Origin Timestamp Aug 30, 1974 03:00 PM UTC
5.8	Feb 27, 1974 05:00 PM	65 km SSW of Rachel, Nevada	10.0 km
🔴 Mainshock  ·  🔵 Past Quake  ·  ┄ Vector 37.1040°, -116.0530° Spatial Relative Telemetry M 5.8 Distance to Epicenter 279 km (173 mi) Direction N Focal Depth 10.0 km (6.2 mi) Origin Timestamp Feb 27, 1974 05:00 PM UTC
5.8	Feb 9, 1971 02:02 PM	10km SSW of Agua Dulce, CA	6.0 km
🔴 Mainshock  ·  🔵 Past Quake  ·  ┄ Vector 34.4160°, -118.3700° Spatial Relative Telemetry M 5.8 Distance to Epicenter 194 km (121 mi) Direction W Focal Depth 6.0 km (3.7 mi) Origin Timestamp Feb 9, 1971 02:02 PM UTC
5.8	Feb 9, 1971 02:01 PM	10km SSW of Agua Dulce, CA	6.0 km
🔴 Mainshock  ·  🔵 Past Quake  ·  ┄ Vector 34.4160°, -118.3700° Spatial Relative Telemetry M 5.8 Distance to Epicenter 194 km (121 mi) Direction W Focal Depth 6.0 km (3.7 mi) Origin Timestamp Feb 9, 1971 02:01 PM UTC
5.8	Dec 1, 1958 03:21 AM	44km SSW of Progreso, B.C., MX	6.0 km
🔴 Mainshock  ·  🔵 Past Quake  ·  ┄ Vector 32.2163°, -115.7542° Spatial Relative Telemetry M 5.8 Distance to Epicenter 270 km (168 mi) Direction S Focal Depth 6.0 km (3.7 mi) Origin Timestamp Dec 1, 1958 03:21 AM UTC
5.8	Jul 21, 1952 12:05 PM	13km WNW of Grapevine, CA	6.0 km
🔴 Mainshock  ·  🔵 Past Quake  ·  ┄ Vector 34.9732°, -119.0662° Spatial Relative Telemetry M 5.8 Distance to Epicenter 259 km (161 mi) Direction W Focal Depth 6.0 km (3.7 mi) Origin Timestamp Jul 21, 1952 12:05 PM UTC
5.8	Dec 26, 1951 12:46 AM	11km NNE of San Clemente Is. (SE tip), CA	6.0 km
🔴 Mainshock  ·  🔵 Past Quake  ·  ┄ Vector 32.9162°, -118.3052° Spatial Relative Telemetry M 5.8 Distance to Epicenter 266 km (165 mi) Direction SW Focal Depth 6.0 km (3.7 mi) Origin Timestamp Dec 26, 1951 12:46 AM UTC
5.8	Aug 15, 1945 05:56 PM	5km N of Westmorland, CA	6.0 km
🔴 Mainshock  ·  🔵 Past Quake  ·  ┄ Vector 33.0823°, -115.6312° Spatial Relative Telemetry M 5.8 Distance to Epicenter 179 km (111 mi) Direction SSE Focal Depth 6.0 km (3.7 mi) Origin Timestamp Aug 15, 1945 05:56 PM UTC
5.8	Dec 23, 1905 10:23 PM	Near Bakersfield, California	10.0 km
🔴 Mainshock  ·  🔵 Past Quake  ·  ┄ Vector 35.3000°, -118.8000° Spatial Relative Telemetry M 5.8 Distance to Epicenter 244 km (152 mi) Direction WNW Focal Depth 10.0 km (6.2 mi) Origin Timestamp Dec 23, 1905 10:23 PM UTC
5.7	Jun 15, 2010 04:26 AM	8km ESE of Ocotillo, CA	8.8 km
🔴 Mainshock  ·  🔵 Past Quake  ·  ┄ Vector 32.7050°, -115.9113° Spatial Relative Telemetry M 5.7 Distance to Epicenter 214 km (133 mi) Direction S Focal Depth 8.8 km (5.5 mi) Origin Timestamp Jun 15, 2010 04:26 AM UTC
5.7	Feb 22, 2002 07:32 PM	13km WSW of Delta, B.C., MX	7.0 km
🔴 Mainshock  ·  🔵 Past Quake  ·  ┄ Vector 32.3188°, -115.3215° Spatial Relative Telemetry M 5.7 Distance to Epicenter 269 km (167 mi) Direction SSE Focal Depth 7.0 km (4.3 mi) Origin Timestamp Feb 22, 2002 07:32 PM UTC
5.7	Jun 29, 1992 02:08 PM	3km ESE of Yucca Valley, California	9.6 km
🔴 Mainshock  ·  🔵 Past Quake  ·  ┄ Vector 34.1050°, -116.4030° Spatial Relative Telemetry M 5.7 Distance to Epicenter 57 km (35 mi) Direction SSW Focal Depth 9.6 km (6.0 mi) Origin Timestamp Jun 29, 1992 02:08 PM UTC
5.7	Jun 28, 1992 12:01 PM	2km SSW of Joshua Tree, California	5.7 km
🔴 Mainshock  ·  🔵 Past Quake  ·  ┄ Vector 34.1200°, -116.3230° Spatial Relative Telemetry M 5.7 Distance to Epicenter 54 km (34 mi) Direction S Focal Depth 5.7 km (3.5 mi) Origin Timestamp Jun 28, 1992 12:01 PM UTC
5.7	Jul 29, 1952 07:03 AM	11km N of Lamont, CA	6.0 km
🔴 Mainshock  ·  🔵 Past Quake  ·  ┄ Vector 35.3568°, -118.8948° Spatial Relative Telemetry M 5.7 Distance to Epicenter 254 km (158 mi) Direction WNW Focal Depth 6.0 km (3.7 mi) Origin Timestamp Jul 29, 1952 07:03 AM UTC
5.7	May 2, 1949 11:25 AM	38km ESE of Twentynine Palms, CA	6.0 km
🔴 Mainshock  ·  🔵 Past Quake  ·  ┄ Vector 34.0000°, -115.6958° Spatial Relative Telemetry M 5.7 Distance to Epicenter 85 km (53 mi) Direction SE Focal Depth 6.0 km (3.7 mi) Origin Timestamp May 2, 1949 11:25 AM UTC
5.7	Nov 7, 1923 11:57 PM	11 km SE of Progreso, Mexico	10.0 km
🔴 Mainshock  ·  🔵 Past Quake  ·  ┄ Vector 32.5000°, -115.5000° Spatial Relative Telemetry M 5.7 Distance to Epicenter 244 km (152 mi) Direction SSE Focal Depth 10.0 km (6.2 mi) Origin Timestamp Nov 7, 1923 11:57 PM UTC
5.6	Oct 16, 1999 09:59 AM	7km ENE of Running Springs, CA	6.0 km
🔴 Mainshock  ·  🔵 Past Quake  ·  ┄ Vector 34.2400°, -117.0400° Spatial Relative Telemetry M 5.6 Distance to Epicenter 82 km (51 mi) Direction WSW Focal Depth 6.0 km (3.7 mi) Origin Timestamp Oct 16, 1999 09:59 AM UTC
5.5	Jun 28, 1992 02:43 PM	11km SSE of Big Bear Lake, California	9.6 km
🔴 Mainshock  ·  🔵 Past Quake  ·  ┄ Vector 34.1620°, -116.8520° Spatial Relative Telemetry M 5.5 Distance to Epicenter 73 km (45 mi) Direction SW Focal Depth 9.6 km (6.0 mi) Origin Timestamp Jun 28, 1992 02:43 PM UTC
5.5	Jun 28, 1992 12:36 PM	0km E of Yucca Valley, CA	7.5 km
🔴 Mainshock  ·  🔵 Past Quake  ·  ┄ Vector 34.1150°, -116.4263° Spatial Relative Telemetry M 5.5 Distance to Epicenter 56 km (35 mi) Direction SSW Focal Depth 7.5 km (4.7 mi) Origin Timestamp Jun 28, 1992 12:36 PM UTC
5.5	Feb 28, 1990 11:43 PM	The 1990 Upland, California Earthquake	3.3 km
🔴 Mainshock  ·  🔵 Past Quake  ·  ┄ Vector 34.1440°, -117.6970° Spatial Relative Telemetry M 5.5 Distance to Epicenter 141 km (88 mi) Direction WSW Focal Depth 3.3 km (2.1 mi) Origin Timestamp Feb 28, 1990 11:43 PM UTC
5.5	Apr 28, 1969 11:20 PM	1km ENE of Borrego Springs, CA	6.0 km
🔴 Mainshock  ·  🔵 Past Quake  ·  ┄ Vector 33.2592°, -116.3610° Spatial Relative Telemetry M 5.5 Distance to Epicenter 150 km (93 mi) Direction S Focal Depth 6.0 km (3.7 mi) Origin Timestamp Apr 28, 1969 11:20 PM UTC
5.5	Jul 18, 1946 02:27 PM	17km WSW of Amboy, CA	6.0 km
🔴 Mainshock  ·  🔵 Past Quake  ·  ┄ Vector 34.5017°, -115.9148° Spatial Relative Telemetry M 5.5 Distance to Epicenter 34 km (21 mi) Direction ESE Focal Depth 6.0 km (3.7 mi) Origin Timestamp Jul 18, 1946 02:27 PM UTC
5.5	Apr 3, 1926 08:09 PM	15 km SSE of Twentynine Palms, California	10.0 km
🔴 Mainshock  ·  🔵 Past Quake  ·  ┄ Vector 34.0000°, -116.0000° Spatial Relative Telemetry M 5.5 Distance to Epicenter 71 km (44 mi) Direction SSE Focal Depth 10.0 km (6.2 mi) Origin Timestamp Apr 3, 1926 08:09 PM UTC
5.4	Jul 7, 2010 11:53 PM	20km NNW of Borrego Springs, CA	12.3 km
🔴 Mainshock  ·  🔵 Past Quake  ·  ┄ Vector 33.4173°, -116.4747° Spatial Relative Telemetry M 5.4 Distance to Epicenter 133 km (83 mi) Direction S Focal Depth 12.3 km (7.6 mi) Origin Timestamp Jul 7, 2010 11:53 PM UTC
5.4	Oct 16, 1999 12:57 PM	32km SSW of Ludlow, California	0.8 km
🔴 Mainshock  ·  🔵 Past Quake  ·  ┄ Vector 34.4415°, -116.2525° Spatial Relative Telemetry M 5.4 Distance to Epicenter 18 km (11 mi) Direction S Focal Depth 0.8 km (0.5 mi) Origin Timestamp Oct 16, 1999 12:57 PM UTC
5.4	Jul 5, 1992 09:18 PM	21km SW of Ludlow, California	4.9 km
🔴 Mainshock  ·  🔵 Past Quake  ·  ┄ Vector 34.5830°, -116.3220° Spatial Relative Telemetry M 5.4 Distance to Epicenter 6 km (4 mi) Direction WSW Focal Depth 4.9 km (3.0 mi) Origin Timestamp Jul 5, 1992 09:18 PM UTC
5.4	Jun 28, 1992 12:40 PM	26km NNW of Yucca Valley, CA	4.4 km
🔴 Mainshock  ·  🔵 Past Quake  ·  ┄ Vector 34.3412°, -116.5107° Spatial Relative Telemetry M 5.4 Distance to Epicenter 37 km (23 mi) Direction SW Focal Depth 4.4 km (2.7 mi) Origin Timestamp Jun 28, 1992 12:40 PM UTC
5.3	Mar 18, 1997 03:24 PM	20km ENE of Barstow, California	0.6 km
🔴 Mainshock  ·  🔵 Past Quake  ·  ┄ Vector 34.9710°, -116.8190° Spatial Relative Telemetry M 5.3 Distance to Epicenter 65 km (40 mi) Direction NW Focal Depth 0.6 km (0.4 mi) Origin Timestamp Mar 18, 1997 03:24 PM UTC
5.3	Dec 4, 1992 02:08 AM	10km SE of Lucerne Valley, California	1.3 km
🔴 Mainshock  ·  🔵 Past Quake  ·  ┄ Vector 34.3690°, -116.8980° Spatial Relative Telemetry M 5.3 Distance to Epicenter 64 km (40 mi) Direction WSW Focal Depth 1.3 km (0.8 mi) Origin Timestamp Dec 4, 1992 02:08 AM UTC
5.3	Nov 27, 1992 04:00 PM	10km NNW of Big Bear City, California	-0.4 km
🔴 Mainshock  ·  🔵 Past Quake  ·  ┄ Vector 34.3400°, -116.9000° Spatial Relative Telemetry M 5.3 Distance to Epicenter 65 km (40 mi) Direction WSW Focal Depth -0.4 km (-0.2 mi) Origin Timestamp Nov 27, 1992 04:00 PM UTC
5.3	Sep 15, 1992 08:47 AM	9km SE of Yucca Valley, California	7.2 km
🔴 Mainshock  ·  🔵 Past Quake  ·  ┄ Vector 34.0640°, -116.3610° Spatial Relative Telemetry M 5.3 Distance to Epicenter 61 km (38 mi) Direction S Focal Depth 7.2 km (4.5 mi) Origin Timestamp Sep 15, 1992 08:47 AM UTC
5.3	Jul 1, 1992 07:40 AM	24km N of Yucca Valley, California	5.1 km
🔴 Mainshock  ·  🔵 Past Quake  ·  ┄ Vector 34.3300°, -116.4640° Spatial Relative Telemetry M 5.3 Distance to Epicenter 35 km (22 mi) Direction SSW Focal Depth 5.1 km (3.2 mi) Origin Timestamp Jul 1, 1992 07:40 AM UTC
5.3	Jun 28, 1992 05:05 PM	1km N of Big Bear Lake, California	6.6 km
🔴 Mainshock  ·  🔵 Past Quake  ·  ┄ Vector 34.2550°, -116.9120° Spatial Relative Telemetry M 5.3 Distance to Epicenter 71 km (44 mi) Direction WSW Focal Depth 6.6 km (4.1 mi) Origin Timestamp Jun 28, 1992 05:05 PM UTC
5.3	Feb 25, 1980 10:47 AM	18km ESE of Anza, CA	19.4 km
🔴 Mainshock  ·  🔵 Past Quake  ·  ┄ Vector 33.4753°, -116.4997° Spatial Relative Telemetry M 5.3 Distance to Epicenter 127 km (79 mi) Direction S Focal Depth 19.4 km (12.1 mi) Origin Timestamp Feb 25, 1980 10:47 AM UTC
5.3	Jun 1, 1975 01:38 AM	38km SW of Ludlow, CA	0.1 km
🔴 Mainshock  ·  🔵 Past Quake  ·  ┄ Vector 34.5120°, -116.4880° Spatial Relative Telemetry M 5.3 Distance to Epicenter 23 km (14 mi) Direction WSW Focal Depth 0.1 km (0.1 mi) Origin Timestamp Jun 1, 1975 01:38 AM UTC
5.3	Sep 23, 1963 02:41 PM	6km SSE of Hemet, CA	10.7 km
🔴 Mainshock  ·  🔵 Past Quake  ·  ┄ Vector 33.7037°, -116.9382° Spatial Relative Telemetry M 5.3 Distance to Epicenter 118 km (73 mi) Direction SSW Focal Depth 10.7 km (6.6 mi) Origin Timestamp Sep 23, 1963 02:41 PM UTC
5.3	Jul 24, 1947 10:10 PM	4km NNE of Desert Hot Springs, CA	6.0 km
🔴 Mainshock  ·  🔵 Past Quake  ·  ┄ Vector 33.9937°, -116.4810° Spatial Relative Telemetry M 5.3 Distance to Epicenter 71 km (44 mi) Direction SSW Focal Depth 6.0 km (3.7 mi) Origin Timestamp Jul 24, 1947 10:10 PM UTC
5.3	Aug 29, 1943 03:45 AM	6km WNW of Big Bear Lake, CA	6.0 km
🔴 Mainshock  ·  🔵 Past Quake  ·  ┄ Vector 34.2680°, -116.9678° Spatial Relative Telemetry M 5.3 Distance to Epicenter 74 km (46 mi) Direction WSW Focal Depth 6.0 km (3.7 mi) Origin Timestamp Aug 29, 1943 03:45 AM UTC
5.3	May 18, 1940 05:03 AM	6km SSE of Joshua Tree, CA	6.0 km
🔴 Mainshock  ·  🔵 Past Quake  ·  ┄ Vector 34.0890°, -116.2818° Spatial Relative Telemetry M 5.3 Distance to Epicenter 57 km (35 mi) Direction S Focal Depth 6.0 km (3.7 mi) Origin Timestamp May 18, 1940 05:03 AM UTC
5.3	Jan 16, 1930 12:24 AM	4 km SSE of Big Bear Lake, California	10.0 km
🔴 Mainshock  ·  🔵 Past Quake  ·  ┄ Vector 34.2000°, -116.9000° Spatial Relative Telemetry M 5.3 Distance to Epicenter 74 km (46 mi) Direction SW Focal Depth 10.0 km (6.2 mi) Origin Timestamp Jan 16, 1930 12:24 AM UTC
5.3	Sep 20, 1907 01:54 AM	Near San Bernardino, California	10.0 km
🔴 Mainshock  ·  🔵 Past Quake  ·  ┄ Vector 34.2000°, -117.1000° Spatial Relative Telemetry M 5.3 Distance to Epicenter 89 km (55 mi) Direction WSW Focal Depth 10.0 km (6.2 mi) Origin Timestamp Sep 20, 1907 01:54 AM UTC
5.2	Jun 10, 2016 08:04 AM	20km NNW of Borrego Springs, CA	12.3 km
🔴 Mainshock  ·  🔵 Past Quake  ·  ┄ Vector 33.4315°, -116.4427° Spatial Relative Telemetry M 5.2 Distance to Epicenter 131 km (81 mi) Direction S Focal Depth 12.3 km (7.6 mi) Origin Timestamp Jun 10, 2016 08:04 AM UTC
5.2	Jun 12, 2005 03:41 PM	10km ESE of Anza, CA	13.1 km
🔴 Mainshock  ·  🔵 Past Quake  ·  ┄ Vector 33.5325°, -116.5667° Spatial Relative Telemetry M 5.2 Distance to Epicenter 122 km (76 mi) Direction SSW Focal Depth 13.1 km (8.1 mi) Origin Timestamp Jun 12, 2005 03:41 PM UTC
5.2	Aug 17, 1992 08:41 PM	7km SE of Big Bear Lake, California	9.4 km
🔴 Mainshock  ·  🔵 Past Quake  ·  ┄ Vector 34.1950°, -116.8630° Spatial Relative Telemetry M 5.2 Distance to Epicenter 71 km (44 mi) Direction SW Focal Depth 9.4 km (5.8 mi) Origin Timestamp Aug 17, 1992 08:41 PM UTC
5.2	Mar 15, 1979 09:07 PM	23km NNW of Joshua Tree, CA	9.3 km
🔴 Mainshock  ·  🔵 Past Quake  ·  ┄ Vector 34.3258°, -116.4160° Spatial Relative Telemetry M 5.2 Distance to Epicenter 34 km (21 mi) Direction SSW Focal Depth 9.3 km (5.8 mi) Origin Timestamp Mar 15, 1979 09:07 PM UTC
5.2	Sep 12, 1970 02:30 PM	3km W of Lytle Creek, CA	10.8 km
🔴 Mainshock  ·  🔵 Past Quake  ·  ┄ Vector 34.2548°, -117.5343° Spatial Relative Telemetry M 5.2 Distance to Epicenter 123 km (76 mi) Direction WSW Focal Depth 10.8 km (6.7 mi) Origin Timestamp Sep 12, 1970 02:30 PM UTC
5.2	Jul 25, 1947 06:19 AM	10km SSE of Yucca Valley, CA	6.0 km
🔴 Mainshock  ·  🔵 Past Quake  ·  ┄ Vector 34.0300°, -116.4063° Spatial Relative Telemetry M 5.2 Distance to Epicenter 65 km (40 mi) Direction SSW Focal Depth 6.0 km (3.7 mi) Origin Timestamp Jul 25, 1947 06:19 AM UTC
5.2	Jun 12, 1944 11:16 AM	12km WSW of Morongo Valley, CA	6.0 km
🔴 Mainshock  ·  🔵 Past Quake  ·  ┄ Vector 34.0015°, -116.6988° Spatial Relative Telemetry M 5.2 Distance to Epicenter 78 km (48 mi) Direction SSW Focal Depth 6.0 km (3.7 mi) Origin Timestamp Jun 12, 1944 11:16 AM UTC
5.2	May 18, 1940 05:51 AM	11km S of Joshua Tree, CA	6.0 km
🔴 Mainshock  ·  🔵 Past Quake  ·  ┄ Vector 34.0370°, -116.3065° Spatial Relative Telemetry M 5.2 Distance to Epicenter 63 km (39 mi) Direction S Focal Depth 6.0 km (3.7 mi) Origin Timestamp May 18, 1940 05:51 AM UTC
5.1	Dec 6, 2008 04:18 AM	26km WNW of Ludlow, CA	6.4 km
🔴 Mainshock  ·  🔵 Past Quake  ·  ┄ Vector 34.8133°, -116.4188° Spatial Relative Telemetry M 5.1 Distance to Epicenter 27 km (17 mi) Direction NNW Focal Depth 6.4 km (4.0 mi) Origin Timestamp Dec 6, 2008 04:18 AM UTC
5.1	Jun 29, 1992 02:13 PM	4km ESE of Yucca Valley, CA	11.2 km
🔴 Mainshock  ·  🔵 Past Quake  ·  ┄ Vector 34.1045°, -116.3900° Spatial Relative Telemetry M 5.1 Distance to Epicenter 57 km (35 mi) Direction SSW Focal Depth 11.2 km (7.0 mi) Origin Timestamp Jun 29, 1992 02:13 PM UTC
5.1	Sep 25, 1965 05:43 PM	25km W of Ludlow, CA	6.0 km
🔴 Mainshock  ·  🔵 Past Quake  ·  ┄ Vector 34.7138°, -116.4317° Spatial Relative Telemetry M 5.1 Distance to Epicenter 20 km (12 mi) Direction NW Focal Depth 6.0 km (3.7 mi) Origin Timestamp Sep 25, 1965 05:43 PM UTC
5.1	Jun 12, 1944 10:45 AM	10km NNE of Cabazon, CA	6.0 km
🔴 Mainshock  ·  🔵 Past Quake  ·  ┄ Vector 33.9890°, -116.7312° Spatial Relative Telemetry M 5.1 Distance to Epicenter 81 km (50 mi) Direction SSW Focal Depth 6.0 km (3.7 mi) Origin Timestamp Jun 12, 1944 10:45 AM UTC
5.1	Dec 22, 1943 03:50 PM	22km SSW of Amboy, CA	6.0 km
🔴 Mainshock  ·  🔵 Past Quake  ·  ┄ Vector 34.3698°, -115.8185° Spatial Relative Telemetry M 5.1 Distance to Epicenter 48 km (30 mi) Direction ESE Focal Depth 6.0 km (3.7 mi) Origin Timestamp Dec 22, 1943 03:50 PM UTC
5.1	Jan 16, 1930 12:34 AM	4 km SSE of Big Bear Lake, California	10.0 km
🔴 Mainshock  ·  🔵 Past Quake  ·  ┄ Vector 34.2000°, -116.9000° Spatial Relative Telemetry M 5.1 Distance to Epicenter 74 km (46 mi) Direction SW Focal Depth 10.0 km (6.2 mi) Origin Timestamp Jan 16, 1930 12:34 AM UTC
5.1	Sep 26, 1929 08:00 PM	46 km E of Barstow, California	10.0 km
🔴 Mainshock  ·  🔵 Past Quake  ·  ┄ Vector 34.8300°, -116.5200° Spatial Relative Telemetry M 5.1 Distance to Epicenter 34 km (21 mi) Direction NW Focal Depth 10.0 km (6.2 mi) Origin Timestamp Sep 26, 1929 08:00 PM UTC
5.0	Feb 22, 2003 12:19 PM	6km N of Big Bear City, CA	5.6 km
🔴 Mainshock  ·  🔵 Past Quake  ·  ┄ Vector 34.3120°, -116.8448° Spatial Relative Telemetry M 5.0 Distance to Epicenter 62 km (39 mi) Direction WSW Focal Depth 5.6 km (3.5 mi) Origin Timestamp Feb 22, 2003 12:19 PM UTC
5.0	Oct 31, 2001 07:56 AM	16km ESE of Anza, CA	13.7 km
🔴 Mainshock  ·  🔵 Past Quake  ·  ┄ Vector 33.5083°, -116.5143° Spatial Relative Telemetry M 5.0 Distance to Epicenter 124 km (77 mi) Direction S Focal Depth 13.7 km (8.5 mi) Origin Timestamp Oct 31, 2001 07:56 AM UTC
5.0	Oct 22, 1999 04:08 PM	28km NW of Ludlow, California	-0.1 km
🔴 Mainshock  ·  🔵 Past Quake  ·  ┄ Vector 34.8650°, -116.4090° Spatial Relative Telemetry M 5.0 Distance to Epicenter 32 km (20 mi) Direction NNW Focal Depth -0.1 km (-0.1 mi) Origin Timestamp Oct 22, 1999 04:08 PM UTC
5.0	Oct 21, 1999 01:54 AM	27km NW of Ludlow, California	0.0 km
🔴 Mainshock  ·  🔵 Past Quake  ·  ┄ Vector 34.8740°, -116.3910° Spatial Relative Telemetry M 5.0 Distance to Epicenter 32 km (20 mi) Direction NNW Focal Depth 0.0 km (0.0 mi) Origin Timestamp Oct 21, 1999 01:54 AM UTC
5.0	Oct 16, 1999 09:52 AM	25km S of Ludlow, CA	4.9 km
🔴 Mainshock  ·  🔵 Past Quake  ·  ┄ Vector 34.5020°, -116.2030° Spatial Relative Telemetry M 5.0 Distance to Epicenter 13 km (8 mi) Direction SSE Focal Depth 4.9 km (3.0 mi) Origin Timestamp Oct 16, 1999 09:52 AM UTC
5.0	Jun 16, 1994 04:24 PM	17km NNW of Joshua Tree, California	2.5 km
🔴 Mainshock  ·  🔵 Past Quake  ·  ┄ Vector 34.2680°, -116.4020° Spatial Relative Telemetry M 5.0 Distance to Epicenter 39 km (24 mi) Direction SSW Focal Depth 2.5 km (1.6 mi) Origin Timestamp Jun 16, 1994 04:24 PM UTC
5.0	Aug 21, 1993 01:46 AM	12km S of Joshua Tree, California	8.2 km
🔴 Mainshock  ·  🔵 Past Quake  ·  ┄ Vector 34.0290°, -116.3210° Spatial Relative Telemetry M 5.0 Distance to Epicenter 64 km (40 mi) Direction S Focal Depth 8.2 km (5.1 mi) Origin Timestamp Aug 21, 1993 01:46 AM UTC
5.0	Jul 24, 1992 06:14 PM	13km NE of Thousand Palms, California	7.2 km
🔴 Mainshock  ·  🔵 Past Quake  ·  ┄ Vector 33.9010°, -116.2850° Spatial Relative Telemetry M 5.0 Distance to Epicenter 78 km (48 mi) Direction S Focal Depth 7.2 km (4.5 mi) Origin Timestamp Jul 24, 1992 06:14 PM UTC
5.0	Jun 30, 1992 02:38 PM	14km ENE of Desert Hot Springs, CA	1.0 km
🔴 Mainshock  ·  🔵 Past Quake  ·  ┄ Vector 33.9972°, -116.3565° Spatial Relative Telemetry M 5.0 Distance to Epicenter 68 km (42 mi) Direction S Focal Depth 1.0 km (0.6 mi) Origin Timestamp Jun 30, 1992 02:38 PM UTC
5.0	Jun 28, 1992 05:01 PM	7km S of Big Bear Lake, CA	9.2 km
🔴 Mainshock  ·  🔵 Past Quake  ·  ┄ Vector 34.1788°, -116.9247° Spatial Relative Telemetry M 5.0 Distance to Epicenter 77 km (48 mi) Direction SW Focal Depth 9.2 km (5.7 mi) Origin Timestamp Jun 28, 1992 05:01 PM UTC
5.0	Jun 28, 1992 12:02 PM	1km SSE of Yucca Valley, California	5.6 km
🔴 Mainshock  ·  🔵 Past Quake  ·  ┄ Vector 34.1032°, -116.4247° Spatial Relative Telemetry M 5.0 Distance to Epicenter 58 km (36 mi) Direction SSW Focal Depth 5.6 km (3.5 mi) Origin Timestamp Jun 28, 1992 12:02 PM UTC
5.0	Jun 28, 1992 12:02 PM	7km SSW of Yucca Valley, California	5.4 km
🔴 Mainshock  ·  🔵 Past Quake  ·  ┄ Vector 34.0605°, -116.4727° Spatial Relative Telemetry M 5.0 Distance to Epicenter 63 km (39 mi) Direction SSW Focal Depth 5.4 km (3.4 mi) Origin Timestamp Jun 28, 1992 12:02 PM UTC
5.0	May 18, 1992 03:44 PM	15km E of Desert Hot Springs, California	6.1 km
🔴 Mainshock  ·  🔵 Past Quake  ·  ┄ Vector 33.9510°, -116.3370° Spatial Relative Telemetry M 5.0 Distance to Epicenter 73 km (45 mi) Direction S Focal Depth 6.1 km (3.8 mi) Origin Timestamp May 18, 1992 03:44 PM UTC
5.0	May 4, 1992 04:19 PM	16km NNE of Thousand Palms, California	11.8 km
🔴 Mainshock  ·  🔵 Past Quake  ·  ┄ Vector 33.9410°, -116.3040° Spatial Relative Telemetry M 5.0 Distance to Epicenter 74 km (46 mi) Direction S Focal Depth 11.8 km (7.3 mi) Origin Timestamp May 4, 1992 04:19 PM UTC
5.0	Dec 16, 1988 05:53 AM	12km SW of Morongo Valley, CA	6.9 km
🔴 Mainshock  ·  🔵 Past Quake  ·  ┄ Vector 33.9790°, -116.6810° Spatial Relative Telemetry M 5.0 Distance to Epicenter 79 km (49 mi) Direction SSW Focal Depth 6.9 km (4.3 mi) Origin Timestamp Dec 16, 1988 05:53 AM UTC
5.0	Oct 29, 1962 02:42 AM	10km NNW of Big Bear City, CA	6.0 km
🔴 Mainshock  ·  🔵 Past Quake  ·  ┄ Vector 34.3490°, -116.8663° Spatial Relative Telemetry M 5.0 Distance to Epicenter 62 km (39 mi) Direction WSW Focal Depth 6.0 km (3.7 mi) Origin Timestamp Oct 29, 1962 02:42 AM UTC
5.0	May 26, 1957 03:59 PM	6km WSW of Salton City, CA	6.0 km
🔴 Mainshock  ·  🔵 Past Quake  ·  ┄ Vector 33.2737°, -116.0103° Spatial Relative Telemetry M 5.0 Distance to Epicenter 150 km (93 mi) Direction S Focal Depth 6.0 km (3.7 mi) Origin Timestamp May 26, 1957 03:59 PM UTC
5.0	Apr 11, 1947 07:47 AM	37km SSE of Fort Irwin, CA	6.0 km
🔴 Mainshock  ·  🔵 Past Quake  ·  ┄ Vector 34.9592°, -116.5258° Spatial Relative Telemetry M 5.0 Distance to Epicenter 46 km (29 mi) Direction NNW Focal Depth 6.0 km (3.7 mi) Origin Timestamp Apr 11, 1947 07:47 AM UTC
5.0	Apr 10, 1947 04:03 PM	27km S of Fort Irwin, CA	6.0 km
🔴 Mainshock  ·  🔵 Past Quake  ·  ┄ Vector 35.0175°, -116.7193° Spatial Relative Telemetry M 5.0 Distance to Epicenter 62 km (39 mi) Direction NW Focal Depth 6.0 km (3.7 mi) Origin Timestamp Apr 10, 1947 04:03 PM UTC
5.0	Sep 5, 1928 02:42 PM	15 km SSE of Twentynine Palms, California	10.0 km
🔴 Mainshock  ·  🔵 Past Quake  ·  ┄ Vector 34.0000°, -116.0000° Spatial Relative Telemetry M 5.0 Distance to Epicenter 71 km (44 mi) Direction SSE Focal Depth 10.0 km (6.2 mi) Origin Timestamp Sep 5, 1928 02:42 PM UTC
5.0	Jun 6, 1918 10:32 PM	4 km WNW of San Jacinto, California	10.0 km
🔴 Mainshock  ·  🔵 Past Quake  ·  ┄ Vector 33.8000°, -117.0000° Spatial Relative Telemetry M 5.0 Distance to Epicenter 112 km (70 mi) Direction SW Focal Depth 10.0 km (6.2 mi) Origin Timestamp Jun 6, 1918 10:32 PM UTC
5.0	May 13, 1910 06:20 AM	Near Lake Elsinore, California	10.0 km
🔴 Mainshock  ·  🔵 Past Quake  ·  ┄ Vector 33.7000°, -117.4000° Spatial Relative Telemetry M 5.0 Distance to Epicenter 145 km (90 mi) Direction SW Focal Depth 10.0 km (6.2 mi) Origin Timestamp May 13, 1910 06:20 AM UTC
5.0	Apr 11, 1910 07:57 AM	Near Lake Elsinore, California	10.0 km
🔴 Mainshock  ·  🔵 Past Quake  ·  ┄ Vector 33.7000°, -117.4000° Spatial Relative Telemetry M 5.0 Distance to Epicenter 145 km (90 mi) Direction SW Focal Depth 10.0 km (6.2 mi) Origin Timestamp Apr 11, 1910 07:57 AM UTC

Seismic Origin Parameters

Event ID	ci9108652
Magnitude	7.1 MW
Origin Time (UTC)	Sat, 16 Oct 1999 09:46:44 GMT
Latitude	34.6033°
Longitude	-116.2650°
Hypocenter Depth	13.7 km
Review Status	REVIEWED
Significance Index	1576 / 1000

Ground Motion & Felt Intensity

Max MMI Intensity	8.3 (VIII)
Perceived Shaking	Severe
Peak Ground Accel (PGA)	0.835 g
Peak Ground Vel (PGV)	4.5 cm/s
PSA (0.3 s)	1.794 g
PSA (1.0 s)	1.073 g
DYFI Felt Reports	25.125 responses
Community CDI	8.0

Reported Casualties, Damages & Structural Impact

Four people slightly injured when an Amtrak train derailed near Ludlow. Damage (VII) at Landers, Ludlow, Twentynine Palms and Twentynine Palms Marine Corps Base. Slight damage (VI) at Amboy, Apple Valley, Baker, Barstow, Big Bear Lake, Cima, Crest Park, Desert Center, Essex, Fawnskin, Fort Irwin, Hemet, Highland, Hinkley, Joshua Tree, Lucerne Valley, Newberry Springs, Olancha, Palm Springs, Phelan, Ridgecrest, Tecopa, Thousand Palms and Victorville. Also slight damage (VI) at Laughlin, Nevada. Felt (V) at many localities in southern California, southern Nevada and western Arizona. Also felt at Ensenada, Mexicali, Tecate and Tijuana, Baja California. Surface faulting observed along a 45-kilometer segment of the Lavic Lake Fault with as much as 2.8-4.7 meters of right-lateral displacement.

Focal Mechanism & Fault Geometry Strike-Slip Faulting

Nodal Plane 1	Strike 64° · Dip 72° · Rake 352°
Nodal Plane 2	Strike 156° · Dip 82° · Rake -162°
Scalar Moment (M₀)	60720000000000000000 N·m
Fault Kinematics	Strike-Slip Faulting

Lower-Hemisphere Focal Projection

Seismic Network & Solution Quality

STATIONS USED

73

PHASES USED

75

AZIMUTHAL GAP

57°

DEPTH ERROR

± 31.6 km

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Data provided by the U.S. Geological Survey (USGS) Earthquake Hazards Program.

Official USGS Event Page (ci9108652)