M3.6 earthquake 24km NNE of Trona, CA

A magnitude 3.6 earthquake struck 24km NNE of Trona, CA on Wed, May 19, 2021, 6:37 PM PDT (01:37 UTC), 3 km (2 mi) below the surface.

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
3.59	Mw, moment	Southern California Seismic Network	Preferred · Final · 4 stations
3.6	Mwr, regional moment	USGS National Earthquake Information Center	Reviewed · 4 stations

The USGS ShakeMap: shaking estimated from seismic stations and the quake’s size, on the Modified Mercalli intensity scale.

14 people reported to the USGS what they felt; the strongest reported shaking was III, 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: 180 in the 60 days after this one and 91 in the 30 days before it.

The first 60 of 180.

From the USGS Earthquake Hazards Program and its partner networks, event ci39659271 (also filed as us7000e4lv). Read Sun, Oct 4, 2026, 3:41 PM UTC.