Earthquakes in Peru

The most recent major earthquake was M8.0 in 2019 (Loreto, 122 km depth, minimal damage due to depth) and M8.0 in 2007 (Ica, 514 deaths). Peru experiences frequent significant earthquakes due to its location above the Nazca-South American subduction zone.

Peru sits above the subduction of the Nazca Plate beneath the South American Plate along the Peru-Chile Trench. The plates converge at 7-8 cm per year, generating both great interplate megathrust earthquakes and inland crustal fault events. Peru has recorded over 20 earthquakes above M7.0 in the past century.

Yes. Lima faces what seismologists call a seismic gap — a portion of the subduction zone that has not ruptured since at least 1746. Studies suggest it could generate a M8.5+ earthquake. Lima sits on soft alluvial sediments that amplify ground shaking, and much of its housing stock is vulnerable to collapse.

Yes. Large subduction earthquakes off Peru's coast generate tsunamis that can reach shore within 15-30 minutes. The 1868 Arica earthquake (M9.0) produced a tsunami that destroyed the Peruvian-Chilean coast. INDECI and the Pacific Tsunami Warning Center monitor tsunami threats from the Peru-Chile Trench.

The Instituto Geofísico del Perú (IGP) operates the national seismic monitoring network and publishes real-time earthquake data. INDECI (National Civil Defense Institute) coordinates emergency response. COEN (National Emergency Operations Center) activates for major events.