Last updated October 4th, 2019
- 17 Nov 2015 20:41:48 PST, (34.175, -117.435), depth 10.6km, 6km SSW of Devore, California
- Aftershocks: so far there have been 4 aftershocks recorded, the largest M1.6. 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 M2.6 (2015/11/18).
- Historical seismicity: since our records began in 1932 we’ve had 12 events of M4 or greater within 10km of today’s event, the largest was M4.6 (1965/04/15) and the most recent was M4.2 on 25 Jul 2015.
- Nearby faults: San Jacinto fault zone, San Bernardino section (Lytle Creek fault) (0.7 km), Sierra Madre fault zone, Cucamonga section (Cucamonga fault) (0.7 km), San Jacinto fault zone, San Bernardino section (San Jacinto fault) (2.8 km), San Andreas fault zone, San Bernardino Mountains section (South Branch SAF) (6.9 km) and San Andreas fault zone, San Bernardino Mountains section (9.4 km).
- Links for: USGS earthquake page, ShakeMap, DYFI.
- Visit our special reports page for further information on local notable earthquakes.