Chile earthquakes

M8.0 earthquake 25 km WSW of Valparaíso, Chile

A magnitude 8.0 earthquake struck 25 km WSW of Valparaíso, Chile on Sun, Mar 3, 1985, 7:47 PM GMT-3 (22:47 UTC), 33 km (21 mi) below the surface.

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Map

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

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The earthquake

Magnitude: 8.0 (mw), great
Local time: Sun, Mar 3, 1985, 7:47 PM GMT-3
UTC: 1985-03-03 22:47:07 UTC
Depth: 33.0 km (20.5 mi), shallow
Epicenter: 33.135° S, 71.871° W
Region: Chile
Strongest shaking: VIII, severe 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: VIII, severe shaking
Peak ground acceleration: 41.5% of gravity
Peak ground velocity: 3.9 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.

Fault motion and ground failure

How the rock slipped, from the moment tensor, and the USGS estimate of landslides and liquefaction.

Landslide alert: Orange
Liquefaction alert: Orange

How well it is located

Reviewed by a seismologist.

Depth from: OPERATOR_ASSIGNED

Nearest places

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

Nearby

Within 100 km, magnitude 2.5 and up: 141 in the 60 days after this one and 26 in the 30 days before it.

After

The first 60 of 141.

Before

Earthquakes today Chile earthquakes Live radar here

Sources

From the USGS Earthquake Hazards Program and its partner networks, event usp0002ccz (also filed as choy19850303224726, iscgem529084, atlas19850303224709). Read Tue, Sep 22, 2026, 8:40 AM UTC.