M3.7 earthquake 3km E of Coronado, CA

A magnitude 3.7 earthquake struck 3km E of Coronado, CA on Mon, Jun 17, 1985, 9:28 PM PDT (04:28 UTC), 5 km (3 mi) below the surface.

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
3.68	ML, local (Richter)	Southern California Seismic Network	Preferred · Final · 6 stations
3.8	ML, local (Richter)	USGS National Earthquake Information Center	Reviewed

The USGS’s account of the effects of this earthquake.

Felt (IV) at Poway and San Diego. Felt (III) at Julian.

From the USGS event page for ci68502. U.S. Geological Survey text and figures are in the public domain.

No one has reported feeling this quake to the USGS.

Reviewed by a seismologist.

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

Within 100 km, magnitude 1.5 and up: 150 in the 60 days after this one and 72 in the 30 days before it.

The first 60 of 150.

From the USGS Earthquake Hazards Program and its partner networks, event ci68502 (also filed as usp0002fya). Read Mon, Oct 5, 2026, 2:43 PM UTC.