M4.2 earthquake 48 km NNW of Antofagasta, Chile

A magnitude 4.2 earthquake struck 48 km NNW of Antofagasta, Chile on Tue, Aug 1, 1995, 5:50 AM GMT-4 (09:50 UTC), 33 km (21 mi) below the surface.

A larger quake followed: M6.4 68 km NNW of Antofagasta, Chile. This one was a foreshock.

Map

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

No one has reported feeling this quake to the USGS.

Reviewed by a seismologist.

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

Within 100 km, magnitude 1.5 and up: 53 in the 60 days after this one and 58 in the 30 days before it.

From the USGS Earthquake Hazards Program and its partner networks, event usp00071a6. Read Wed, Sep 30, 2026, 6:44 AM UTC.