Overview

• Mexico’s seismic service reported a magnitude 4.4 earthquake at 05:44 on September 14 with an epicenter southwest of Los Mochis, Sinaloa, at a depth of about 10 km.
• A magnitude 4.5 quake was logged southwest of Pijijiapan, Chiapas, at 19:05 on September 13, with a depth of roughly 8.6 km.
• During the early hours of September 13, 34 tremors were recorded nationwide, the strongest a magnitude 3.9 near Pinotepa Nacional, Oaxaca.
• SASMEX did not issue a citywide alert because the quakes did not meet its magnitude–distance criteria, which require about magnitude 6 at distances over 350 km or magnitude 5 for closer events.
• No damage or injuries have been reported, and Protección Civil reiterated standard guidance such as staying calm, seeking structural safe zones, and avoiding windows and elevators.