California earthquakes

M2.1 earthquake 19km S of Lopez Point, CA

A magnitude 2.1 earthquake struck 19km S of Lopez Point, CA on Sat, Sep 28, 2019, 5:22 PM PDT (00:22 UTC), 8 km (5 mi) below the surface.

A larger quake followed: M4.7 17km SSE of Tres Pinos, 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
2.1 (Md, duration), micro
Magnitude from
Northern California Seismic System
Local time
UTC
2019-09-29 00:22:18 UTC
Depth
8.1 km (5.1 mi), shallow
Epicenter
35.851° N, 121.543° 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 0.4 km horizontally, 0.6 km in depth
Magnitude uncertainty
±0.28
Depth from
From location
Station coverage gap
205°, poorly surrounded by stations
Stations used
50

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 113 in the 60 days after this one and 66 in the 30 days before it.

After

The first 60 of 113.

Before

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event nc73282905. Read Mon, Oct 5, 2026, 6:25 AM UTC.