Chile earthquakes

M7.2 earthquake 59 km S of San Antonio, Chile

A magnitude 7.2 earthquake struck 59 km S of San Antonio, Chile on Mon, Apr 8, 1985, 9:56 PM GMT-4 (01:56 UTC), 38 km (23 mi) below the surface.

San Antonio forecast More in Chile

Map

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

Open the live map with earthquakes

The earthquake

Magnitude: 7.2 (mw), major
Local time: Mon, Apr 8, 1985, 9:56 PM GMT-4
UTC: 1985-04-09 01:56:59 UTC
Depth: 37.8 km (23.5 mi), shallow
Epicenter: 34.131° S, 71.618° W
Region: Chile
Strongest shaking: VII, very strong shaking
Tsunami flag: No
Status: Reviewed by a seismologist

Shaking

The USGS ShakeMap: shaking estimated from seismic stations and the quake’s size, on the Modified Mercalli intensity scale.

Strongest estimated: VII, very strong shaking
Peak ground acceleration: 30.9% of gravity
Peak ground velocity: 3.2 cm/s
Map: Automatic

USGS ShakeMap: estimated shaking intensity around the epicenter — Estimated shaking intensity. Map: USGS ShakeMap.

Did you feel it?

No one has reported feeling this quake to the USGS.

How well it is located

Reviewed by a seismologist.

Depth from: CONSTRAINED_BY_DEPTH_PHASES

Nearest places

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

Nearby

Within 100 km, magnitude 2.5 and up: 25 in the 60 days after this one and 20 in the 30 days before it.

After

Before

Earthquakes today Chile earthquakes Live radar here

Sources

From the USGS Earthquake Hazards Program and its partner networks, event usp0002dm4 (also filed as choy19850409015701, gcmtc040985a, gcmt19850409015658, atlas19850409015701, iscgem527122). Read Tue, Sep 22, 2026, 5:27 PM UTC.