Overview

• Mexico’s National Seismological Service (SSN) reported a magnitude 4.1 event at 05:12 local time on October 1 southwest of Mapastepec, Chiapas.
• The epicenter was located at 14.491°, -93.891° with a depth of 4.9 kilometers, according to SSN data.
• Authorities reported no injuries or damage and said monitoring remains routine for this level of seismic activity.
• SASMEX criteria require roughly magnitude 6 beyond about 350 km, magnitude 5 between 350 and 250 km, and above magnitude 5 within 250 km, which this quake did not reach.
• Protección Civil reiterated basic guidance such as staying calm, avoiding glass and heavy furniture, and following official instructions in buildings and transit systems.