M5.0 Near Piura Tops Weekend Quake Cluster in Peru and Mexico

Overview

• Sullana, which felt a magnitude 5.0 quake on Saturday morning near Lancones at 26 km depth, reported intensity IV shaking, no major damage, and no tsunami alert.
• Peru logged more light events on Sunday as the IGP reported a magnitude 4.0 offshore Áncash at 8:04 a.m. and a magnitude 4.0 near Callao at 12:12 p.m., both felt but without reported damage.
• Mexico’s SSN recorded a deep magnitude 4.0 near Frontera Comalapa, Chiapas at 3:16 a.m. Saturday, followed by two magnitude 4.0 quakes in Oaxaca early Sunday near Pinotepa Nacional and Matías Romero.
• Mexico City’s seismic alert did not sound because SASMEX only activates when estimated energy points to strong shaking or roughly magnitude 6.0 or higher, so recent events stayed below the threshold.
• IGP and SSN stressed that earthquakes cannot be predicted and advised emergency kits, safe zones, and drills, while response teams in Piura checked clinics and schools and monitoring by IGP, SSN, and USGS continues.