A significant 7.4 magnitude earthquake struck off the coast of Chiapas, Mexico, on Friday, prompting a tsunami threat that impacted approximately one million people in coastal regions. The seismic event occurred at 10:48 a.m. ET.
The epicenter was located near Chiapas, a state situated along the Pacific Ring of Fire, a geologically active region known for its high concentration of earthquakes and volcanoes. This zone accounts for about 75 percent of the Earth's active volcanoes and generates roughly 90 percent of global earthquakes.
The National Tsunami Warning Center issued a warning following the quake, indicating the potential for dangerous waves capable of inundating nearby coastlines. Residents in coastal areas were advised to prepare for possible flooding, strong ocean currents, or large waves.
Authorities have stated there is no tsunami danger for the U.S. West Coast, British Columbia, or Alaska. In Mexico City, over 500 miles from the epicenter, residents reported feeling their homes shake and lights flicker.
In Chiapas, sirens were heard as people evacuated buildings. Officials advised locals to "drop, cover and hold on" if indoors and to check on their neighbors. The governor of the southern Mexican state of Oaxaca, Salomón Jara Cruz, reported that while the earthquake was felt with moderate intensity, no significant damage or injuries have been confirmed. He urged citizens to remain calm and follow official recommendations.
Experts noted that earthquake intensity can vary based on local terrain and building structures, with shallow earthquakes often felt over a wider area. The region has experienced 22 earthquakes in the past 30 days, making this the strongest tremor recorded in that period. Aftershocks are considered likely in the hours and days following the main earthquake.