Peru reports seismic activity in Arequipa and Ucayali

Two seismic events were reported in Peru on October 18 and 19, 2026.

On the night of Sunday, October 18, a magnitude 4.0 earthquake struck the Arequipa region. According to the Instituto Geofísico del Perú (IGP), the epicenter was located 38 kilometers southwest of Aplao in the Castilla province, at a depth of 82 kilometers.

On Monday, October 19, a magnitude 4.5 earthquake occurred in the Ucayali region. The Centro Sismológico Nacional (CENSIS) reported the epicenter was 65 kilometers north of Pucallpa in the Coronel Portillo province, with a depth of 145 kilometers. The tremor reached an intensity of II-III in Pucallpa, which indicates it may be felt lightly by some people indoors. No official reports of damage or injuries have been released regarding the Ucayali event.