Overview
- The Instituto Geofísico del Perú confirmed a magnitude 5.7 earthquake near Aucayacu that occurred Sunday night, placing the epicenter 53 km northeast of the town at latitude -8.58 and longitude -75.79 with a focal depth of 152 km and estimated intensity of III–IV in Aucayacu.
- Mexico’s Servicio Sismológico Nacional logged multiple shallow-to-moderate events of about magnitude 4.1 to 4.6 off the Chiapas and Tabasco coasts between August 2 and 4, with epicenters reported near Huixtla, Mapastepec, Ciudad Hidalgo and northwest of Huimanguillo.
- Depth differences matter because the Huánuco event’s intermediate 152 km focus tends to spread shaking over a wider area but produce less severe surface damage, while the Mexican quakes’ shallow depths (often around 8–13 km) make shaking stronger close to the epicenters.
- Local and state emergency teams in both countries carried out routine inspections of public infrastructure, reported no significant damage or casualties, and urged citizens to follow official safety guidance and check emergency kits and evacuation routes.
- Seismological institutes stress that initial bulletins are preliminary, that monitoring will continue for possible aftershocks, and that the public should rely on official channels for updates and preparedness advice.