Overview
- A powerful quake struck the region on Monday, May 25, producing agency estimates that range from magnitude 6.5 with an epicenter south of Tacna to about 6.9 near Calama in Chile.
- Chilean agencies and the USGS located the event near Calama at shallower depths and reported widespread power outages, minor commercial damage, and temporary stoppages or inspections at mines.
- Peru's Instituto Geofísico del Perú (IGP) reported the event as M6.5 referenced 240 km south of Tacna with no casualties or material damage reported there as authorities kept coastal and civil‑protection monitoring active.
- Seismologists documented multiple aftershocks through Tuesday and Wednesday, and Chilean and Peruvian technical bodies have ruled out tsunami risk while continuing infrastructure checks.
- Differences in early magnitude, depth and epicenter estimates reflect distinct data and processing methods used by national agencies, and officials say priority actions are restoring power, inspecting mines and watching for further replicas.