04/22/2018, M3.9 near Thousand Palms

  • 22 Apr 2018 17:46:08 PDT, (33.922, -116.322), depth 8.2km, 13km NNE of Thousand Palms, California
  • Aftershocks: so far (23 Apr 2018, 07:19AM PDT) there have been 7 aftershocks recorded, the largest M2.2 (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.
  • Historical seismicity: since our records began in 1932 we’ve had 85 events of M4 or greater within 10km of today’s event, the largest was M6.1 (1992/04/23) – the Joshua Tree earthquake. The most recent event was M4.0 on 06 Aug 2010.
  • Nearby faults: unnamed Fault in the Little San Bernardino Mountains (1.1 km), Blue Cut fault zone (Blue Cut fault) (2.0 km), Eureka Peak fault (5.4 km), San Andreas fault zone, San Bernardino Mountains section (North Branch SAF) (6.3 km), San Andreas fault zone, San Bernardino Mountains section (6.8 km), Burnt Mountain fault zone (East Wide Canyon fault) (7.1 km), Indio Hills fault zone (8.9 km), San Andreas fault zone, San Bernardino Mountains section (South Branch SAF) (9.3 km) and Long Canyon fault (11.1 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.

Share on FacebookShare on Google+Tweet about this on TwitterPrint this page
Tagged with: , , ,