M4.9 earthquake 32 km W of Rauco, Chile

A magnitude 4.9 earthquake struck 32 km W of Rauco, Chile on Mon, Mar 12, 2012, 4:37 PM GMT-3 (19:37 UTC), 70 km (43 mi) below the surface.

A larger quake followed: M7.1 23 km NE of Constitución, Chile. This one was a foreshock.

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 (V) at Curico, Iloca, Molina, Pelarco, Pichilemu, Rancagua and Romeral and (IV) in much of Maule. Felt as far as Santiago.

From the USGS event page for usp000jg53. U.S. Geological Survey text and figures are in the public domain.

34 people reported to the USGS what they felt; the strongest reported shaking was III, weak shaking.

Reviewed by a seismologist.

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

Within 100 km, magnitude 1.9 and up: 13 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 usp000jg53 (also filed as usb0008fq6). Read Sat, Oct 3, 2026, 3:56 AM UTC.