California earthquakes

M3.3 earthquake 1 km W of Corralitos, California

A magnitude 3.3 earthquake struck 1 km W of Corralitos, California on Mon, May 26, 1986, 6:57 PM PDT (01:57 UTC), 3 km (2 mi) below the surface.

A larger quake followed: M4.7 18 km SSE of Tres Pinos, California. This one was a foreshock.

Corralitos 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
3.3 (Md, duration), minor
Magnitude from
Northern California Seismic System
Local time
UTC
1986-05-27 01:57:59 UTC
Depth
3.0 km (1.9 mi), shallow
Epicenter
36.989° N, 121.824° 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 2.3 km horizontally, 4.5 km in depth
Depth from
From location
Station coverage gap
258°, poorly surrounded by stations
Stations used
4

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 172 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 nc1138481. Read Thu, Oct 1, 2026, 4:12 PM UTC.