M3.5 earthquake 7km ESE of Lone Pine, CA

A magnitude 3.5 earthquake struck 7km ESE of Lone Pine, CA on Sun, Feb 28, 2021, 5:46 AM PST (13:46 UTC), 8 km (5 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
3.49	ML, local (Richter)	Southern California Seismic Network	Preferred · Final · ±0.138 · 81 stations
3.3	ML, local (Richter)	USGS National Earthquake Information Center	Reviewed · ±0.032 · 126 stations

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

34 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: 162 in the 60 days after this one and 118 in the 30 days before it.

The first 60 of 162.

From the USGS Earthquake Hazards Program and its partner networks, event ci39804712 (also filed as us7000dect). Read Sun, Oct 4, 2026, 4:53 AM UTC.