04/25/2018, M3.9 near Borrego Springs

  • 25 Apr 2018 18:36:00 PDT, (33.380, -116.298), depth 13.9km, 16km NNE of Borrego Springs, California
  • Aftershocks: so far (26 Apr 2018, 02:27PM PDT) there have been 5 aftershocks recorded, the largest M1.2 (smallest M0.8). More may be expected in the next few days, the largest expected is approximately 1 magnitude unit smaller than the mainshock. There is a small chance (about 5%) that a larger quake could occur, with the likelihood decreasing over time.
  • There were 4 events during the 3 days prior to the earthquake (within a 10 km radius), the largest was M2.5 (2018/04/25).
  • Historical seismicity: since our records began in 1932 we’ve had 41 events of M4 or greater within 10km of today’s event, the largest was M6.0 (1937/03/25) and the most recent was M5.2 on 10 Jun 2016.
  • Nearby faults: San Jacinto fault zone, Anza section (Clark fault) (1.1 km), San Jacinto fault zone, Anza section (5.8 km), San Jacinto fault zone, Coyote Creek section (6.6 km), San Jacinto fault zone, Coyote Creek section (Coyote Creek fault) (6.8 km) and San Jacinto fault zone, Anza section (Buck Ridge fault) (7.0 km).
  • Links for: USGS earthquake page, ShakeMap, DYFI, waveforms.
  • Visit our special reports page for further information on local notable earthquakes.

Below are the waveform data associated with this event, as recorded in our Live Seismograms Feed. The closest station to the earthquake shown in the view is CI.WWC in Palm Springs at approximately 60km.

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