Seismic activity on Sept. 21: Earthquake close to Mejillones, Chile registered – magnitude 5.2

Published Sep 21, 2026

ANTOFAGASTA PROVINCE, Antofagasta — A 5.2 magnitude quake occurred near Mejillones on Monday morning, according to the U.S. Geological Survey.

The USGS reported a tremor in the region at 11:48 UTC (06:48 local time). The epicenter was about 167 km west-northwest of Mejillones, at a depth of 10 km.

Did you feel it?

If you noticed the earthquake, you can share your experience using the USGS Felt Report form.

Source: The U.S. Geological Survey