California earthquakes

M1.5 earthquake 15km SE of Pinnacles, CA

A magnitude 1.5 earthquake struck 15km SE of Pinnacles, CA on Tue, Feb 23, 2021, 1:11 PM PST (21:11 UTC), 2 km (1 mi) below the surface.

A larger quake followed: M3.7 22km SSE of Lopez Point, CA. This one was a foreshock.

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Map

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

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The earthquake

Magnitude
1.5 (Md, duration), micro
Magnitude from
Northern California Seismic System
Local time
UTC
2021-02-23 21:11:27 UTC
Depth
1.7 km (1.1 mi), shallow
Epicenter
36.432° N, 121.026° 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 0.8 km horizontally, 0.9 km in depth
Magnitude uncertainty
±0.20
Depth from
From location
Station coverage gap
199°, poorly surrounded by stations
Stations used
10

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 172 in the 60 days after this one and 54 in the 30 days before it.

After

The first 60 of 172.

Before

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event nc73526856. Read Sat, Oct 3, 2026, 2:57 PM UTC.