M3.0 earthquake 19 km NNE of Coalinga, California

A magnitude 3.0 earthquake struck 19 km NNE of Coalinga, California on Sat, Jul 9, 1983, 4:59 PM PDT (23:59 UTC), 5 km (3 mi) below the surface.

A larger quake followed: M5.4 11 km NNW of Coalinga, California. This one was a foreshock.

Map

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

Different scales measure different things and differ by a few tenths. The USGS marks one as preferred, and it is the one this page uses.

Mag.	Scale	Computed by	Notes
3.0	ML, local (Richter)	USGS National Earthquake Information Center	Preferred · Reviewed
3.14	Mh	Southern California Seismic Network	Final · ±0.335 · 5 stations

No one has reported feeling this quake to the USGS.

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

Within 100 km, magnitude 1.5 and up: at least 200 in the 60 days after this one and at least 200 in the 30 days before it.

The first 60 of at least 200.

From the USGS Earthquake Hazards Program and its partner networks, event usp0001wpk (also filed as ci2218917). Read Sat, Oct 3, 2026, 9:38 PM UTC.