M4.2 earthquake 73 km W of Valparaíso, Chile

A magnitude 4.2 earthquake struck 73 km W of Valparaíso, Chile on Wed, May 17, 2017, 8:44 PM GMT-4 (00:44 UTC), 12 km (7 mi) below the surface.

A larger quake followed: M5.4 85 km W of San Antonio, 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 1.5 and up: 11 in the 60 days after this one and 151 in the 30 days before it.

From the USGS Earthquake Hazards Program and its partner networks, event us10008t6f. Read Tue, Sep 29, 2026, 7:59 AM UTC.