12/07/2015, M3.3 near Morongo Valley

  • 07 Dec 2015 06:06:09 PST, (34.072, -116.672), depth 10.5km, 9km WNW of Morongo Valley, California
  • Aftershocks: so far there have been no aftershocks recorded. Some 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 18 events of M4 or greater within 10km of today’s event, the largest was M5.2 (1944/06/12) and the most recent was M4.1 on 21 Jul 1992.
  • Nearby faults: Pinto Mountain fault zone (Pinto Mountain fault) (0.2 km), San Andreas fault zone, San Bernardino Mountains section (Mill Creek fault) (3.5 km), San Andreas fault zone, San Bernardino Mountains section (Mission Creek fault) (4.4 km), San Andreas fault zone, San Bernardino Mountains section (13.0 km) and San Andreas fault zone, San Bernardino Mountains section (South Branch SAF) (13.5 km).
  • Links for: USGS earthquake page, ShakeMap, DYFI.
  • Visit our special reports page for further information on local notable earthquakes.
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Posted in by Nick Scheckel, Local Earthquake Tagged with: , , ,