Shallow M5.5 earthquake hits near Copiapó, Chile

An earthquake measuring M5.5 was recorded at 15:51 UTC on November 3, 2025, approximately 113 km (70 miles) west of Copiapó, Chile. The quake occurred at a depth of 24.9 km (15.5 miles).

The epicenter was located at coordinates 27.4°S, 71.5°W, placing it offshore west of Copiapó in the coastal Atacama region of northern Chile. This area is known for its proximity to the boundary between the Nazca and South American plates.

Given its location offshore but near the Chilean coast, the region may be served by coastal highways, ports, and energy infrastructure tied to mining and shipping industries, typical for this part of Atacama.

There is no tsunami threat associated with this earthquake, based on its location and available data.

One felt report was received for this event. The significance index is 466 (on a scale that runs through 1 000), based on magnitude, felt reports, and estimated impact.

Northern Chile is one of the world’s most seismically active regions, lying along the Peru–Chile Trench—a subduction zone where the Nazca Plate descends beneath the South American Plate, frequently generating significant earthquakes.

This information was last updated at 16:12 UTC on November 3, 2025.