Overview
- Mexico’s National Seismological Service reported a magnitude 4.1 quake at 04:04 near Miahuatlán, Oaxaca (57.1 km depth) and a magnitude 4.2 at 01:13 southwest of San Marcos, Guerrero (5.1 km depth), with no alert triggered in Mexico City.
- Seismic networks in Mexico (SSN), the United States (USGS), Peru (IGP) and Guatemala (INSIVUMEH) are publishing near‑real‑time updates, with numerous low‑magnitude microsismos logged that are often imperceptible.
- USGS tools such as Latest Earthquakes and the ShakeAlert early‑warning system provide seconds of notice before shaking, but no system can predict the exact timing or location of future earthquakes.
- Peru’s IGP most recently listed a magnitude 4.2 event at 23:28 local time on February 27 located 86 km west of Andoas, Loreto, with continuous reporting of additional minor events.
- Authorities reiterate preparedness guidance, including emergency kits, family plans, the drop‑cover‑hold on technique during shaking, post‑event safety checks and reliance on official channels like SSN, USGS, IGP, INSIVUMEH, Protección Civil, INDECI and CONRED.