California earthquakes

M1.5 earthquake 4 km WSW of Madera Acres, California

A magnitude 1.5 earthquake struck 4 km WSW of Madera Acres, California on Thu, Oct 14, 1982, 11:04 PM PDT (06:04 UTC), 20 km (13 mi) below the surface.

A larger quake followed: M5.4 22 km SSW of Three Rocks, California. This one was a foreshock.

Madera Acres forecast More in California

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

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The earthquake

Magnitude: 1.5 (md), micro
Local time: Thu, Oct 14, 1982, 11:04 PM PDT
UTC: 1982-10-15 06:04:30 UTC
Depth: 20.5 km (12.7 mi), shallow
Epicenter: 37.009° N, 120.121° W
Region: California
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 1.5 km horizontally, 1.1 km in depth
Magnitude uncertainty: ±0.19
Depth from: From location
Station coverage gap: 272°, 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: 147 in the 60 days after this one and 13 in the 30 days before it.

After

The first 60 of 147.

Before

Earthquakes today California earthquakes Live radar here

Sources

From the USGS Earthquake Hazards Program and its partner networks, event nc1080331. Read Wed, Sep 30, 2026, 8:12 AM UTC.