M4.6 earthquake 80 km WNW of Illapel, Chile

A magnitude 4.6 earthquake struck 80 km WNW of Illapel, Chile on Wed, Sep 23, 2015, 1:21 AM GMT-3 (04:21 UTC), 11 km (7 mi) below the surface.

A larger quake followed: M5.4 50 km W of Illapel, Chile. This one was a foreshock.

Map

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

1 person reported to the USGS what they felt; the strongest reported shaking was II, weak shaking.

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

Reviewed by a seismologist.

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

Within 100 km, magnitude 1.6 and up: 200 in the 60 days after this one and 0 in the 30 days before it.

The first 60 of 200.

From the USGS Earthquake Hazards Program and its partner networks, event us20003n7l. Read Tue, Sep 22, 2026, 5:03 AM UTC.