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Two Pre-Dawn Quakes Recorded in Mexico With No Seismic Alert

Both events fell below the SASMEX thresholds for issuing a public alert.

Overview

  • Mexico’s National Seismological Service reported two earthquakes early Tuesday, measured at magnitudes 4.1 and 4.0.
  • The first struck at 01:04 local time southeast of Cárdenas, San Luis Potosí, at a shallow depth of 3 kilometers.
  • A second event occurred at 05:15 near Motozintla, Chiapas, at a depth of 178 kilometers.
  • Based on magnitude and distance, neither quake met the activation criteria for SASMEX’s seismic warning system.
  • Civil Protection reiterated standard safety guidance for tremors, and the coverage included no reports of damage or injuries.