Overview

• USGS recorded 13 tremors of magnitude 2.5 or higher across North America and the Caribbean in the past 24 hours, including a 3.5-magnitude quake south of Whites City, New Mexico.
• On Aug. 12 the SSN logged a shallow 1.2-magnitude microsismo in Álvaro Obregón, Mexico City, at a depth of 1 km with no reported damage.
• In the early hours of Aug. 13, seismologists documented three quakes in southern Mexico, peaking at 4.2 magnitude roughly 18 km southwest of Huixtla, Chiapas.
• None of the recent events met the Sistema de Alerta Sísmica Mexicano’s distance-and-magnitude thresholds to trigger public warning sirens.
• Civil-protection agencies highlight that Mexico City’s soft lakebed soils amplify tremors and continue to share preparedness guidance despite the lack of harm.