M2.5 earthquake 12km S of Olancha, CA

A magnitude 2.5 earthquake struck 12km S of Olancha, CA on Sat, Nov 13, 2021, 8:31 AM PST (16:31 UTC), 3 km (2 mi) below the surface.

A larger quake followed: M3.2 15km SW of Searles Valley, CA. This one was a foreshock.

Map

Where this earthquake was located, with the others nearby. Select one for its page.

Different scales measure different things and differ by a few tenths. The USGS marks one as preferred, and it is the one this page uses.

Mag.	Scale	Computed by	Notes
2.52	ML, local (Richter)	Southern California Seismic Network	Preferred · Final · ±0.259 · 25 stations
2.4	ML, local (Richter)	USGS National Earthquake Information Center	Reviewed · ±0.073 · 25 stations

1 person reported to the USGS what they felt; the strongest reported shaking was II, weak shaking.

Reviewed by a seismologist.

Distance and direction from each place to the epicenter, with its forecast.

Within 100 km, magnitude 1.5 and up: 131 in the 60 days after this one and 94 in the 30 days before it.

The first 60 of 131.

From the USGS Earthquake Hazards Program and its partner networks, event ci40095672 (also filed as us7000ftuf). Read Sun, Oct 4, 2026, 8:18 AM UTC.