California Earthquake: M 4.1 - 4 km E of Petrolia, CA

Date & time: 2023-08-17 21:08:00 (UTC)
Local time at epicenter: Thursday, Aug 17, 2023 at 2:08 pm
Latitude/ Longitude: 40.318°N 124.234°W
Epicenter: Mattole Unified School District, CA, USA
Magnitude: 4.1
Depth: 31.9 km


Waveform
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ShakeMap

Nearby towns/cities
  • 4.4 km (2.7 mi) E of Petrolia, California
  • 22.8 km (14.2 mi) SSW of Rio Dell, California
  • 28 km (17.4 mi) SSW of Hydesville, California
  • 52.8 km (32.8 mi) S of Eureka, California
  • 104.1 km (64.7 mi) NNW of Fort Bragg, California

MMI (Modified Mercalli Intensity) Scale:
  • III Ferndale
  • III Fortuna
  • III Hydesville
  • III Rio Dell
  • III Humboldt Hill
  • III Pine Hills
  • III Eureka
  • II Arcata
  • II Bayside
  • I Redding
  • I Windsor

Sources:
  • USGS: M 4.1 - 4 km E of Petrolia, CA
  • IRIS 

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