California earthquakes

M1.7 earthquake 2km ESE of Berkeley, CA

A magnitude 1.7 earthquake struck 2km ESE of Berkeley, CA on Wed, May 19, 2021, 3:04 AM PDT (10:04 UTC), 9 km (6 mi) below the surface.

A larger quake followed: M3.9 3km N of San Lorenzo, 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
1.7 (Md, duration), micro
Magnitude from
Northern California Seismic System
Local time
UTC
2021-05-19 10:04:29 UTC
Depth
9.1 km (5.6 mi), shallow
Epicenter
37.865° N, 122.248° 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 0.1 km horizontally, 0.2 km in depth
Magnitude uncertainty
±0.23
Depth from
From location
Station coverage gap
21°
Stations used
54

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 71 in the 60 days after this one and 35 in the 30 days before it.

After

The first 60 of 71.

Before

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event nc73564565. Read Sat, Oct 3, 2026, 7:03 PM UTC.