California earthquakes

M1.9 earthquake 3km SE of Lopez Point, CA

A magnitude 1.9 earthquake struck 3km SE of Lopez Point, CA on Tue, Mar 30, 2021, 3:08 AM PDT (10:08 UTC), 3 km (2 mi) below the surface.

A larger quake followed: M3.3 6km SSE of San Juan Bautista, 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
1.9 (Md, duration), micro
Magnitude from
Northern California Seismic System
Local time
UTC
2021-03-30 10:08:37 UTC
Depth
3.4 km (2.1 mi), shallow
Epicenter
36.003° N, 121.540° 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 0.5 km horizontally, 1.9 km in depth
Magnitude uncertainty
±0.22
Depth from
From location
Station coverage gap
180°
Stations used
37

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 115 in the 60 days after this one and 53 in the 30 days before it.

After

The first 60 of 115.

Before

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event nc73541671. Read Sat, Oct 3, 2026, 6:27 PM UTC.