M5.3 earthquake 67 km SW of San Antonio, Chile

A magnitude 5.3 earthquake struck 67 km SW of San Antonio, Chile on Fri, Sep 27, 1985, 6:17 AM GMT-4 (10:17 UTC), 33 km (21 mi) below the surface.

Map

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

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

Felt (III) at Santiago.

From the USGS event page for usp0002k6n. 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 2.3 and up: 8 in the 60 days after this one and 4 in the 30 days before it.

From the USGS Earthquake Hazards Program and its partner networks, event usp0002k6n. Read Thu, Oct 1, 2026, 9:22 PM UTC.