California earthquakes

M1.9 earthquake 17km SSE of Mammoth Lakes, CA

A magnitude 1.9 earthquake struck 17km SSE of Mammoth Lakes, CA on Tue, Jan 19, 2021, 9:56 AM PST (17:56 UTC), 11 km (7 mi) below the surface.

A larger quake followed: M3.7 6km ESE of Wilkerson, CA. This one was a foreshock.

Mammoth Lakes forecastMore in California

Map

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

Open the live map with earthquakes

The earthquake

Magnitude
1.9 (Md, duration), micro
Magnitude from
Northern California Seismic System
Local time
UTC
2021-01-19 17:56:00 UTC
Depth
11.3 km (7.1 mi), shallow
Epicenter
37.493° N, 118.903° W
Tsunami flag
No
Status
Reviewed by a seismologist

Did you feel it?

No one has reported feeling this quake to the USGS.

How well it is located

Reviewed by a seismologist.

Location uncertainty
About 0.3 km horizontally, 0.9 km in depth
Magnitude uncertainty
±0.18
Depth from
From location
Station coverage gap
116°
Stations used
28

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 183 in the 60 days after this one and 164 in the 30 days before it.

After

The first 60 of 183.

Before

Earthquakes todayCalifornia earthquakesLive radar here

Sources

From the USGS Earthquake Hazards Program and its partner networks, event nc73513430. Read Mon, Oct 5, 2026, 7:34 AM UTC.