02/22/2016, M4.1 near Ludlow

Last updated October 4th, 2019

  • 22 Feb 2016 19:19:52 PST, (34.695, -116.243), depth 1.4km, 8km WSW of Ludlow, California
  • Aftershocks: so far (23 Feb 2016, 07:47AM PST) there have been 4 aftershocks recorded, the largest M2.9. 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 2 events during the 3 days prior to the earthquake (within a 1 km radius), the largest was M3.5 (2016/02/23).
  • Historical seismicity: since our records began in 1932 we’ve had 20 events of M4 or greater within 10km of today’s event, the largest was M5.8 (1999/10/16) and the most recent was M4.1 on 24 Jan 2016.
  • Nearby faults: Ludlow fault (7.7 km), Unnamed fault east of Pisgah (8.6 km), Lavic Lake fault zone (9.7 km), Pisgah-Bullion fault zone, Pisgah section (Pisgah fault) (13.1 km), Pisgah-Bullion fault zone, Bullion section (Bullion fault) (15.0 km) and Bullion Mountains fault zone (15.0 km).
  • Links for: USGS earthquake page, ShakeMap, DYFI.
  • Visit our special reports page for further information on local notable earthquakes.
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