An earthquake measuring 7.6 on the Richter scale shook Mexico’s central Pacific coast Monday, triggering a seismic alarm in the troubled capital on the anniversary of two previous devastating earthquakes. There were no immediate reports of significant damage from the earthquake that struck at 1:05 p.m. local time, according to the US Geological Survey, which had initially estimated its magnitude at 7.5.
It said the quake was located 37 km (23 miles) southeast of Aquila near the border of the states of Colima and Michoacan and at a depth of 15.1 km (9.4 miles). Michoacan’s Public Safety Department said there were no immediate reports of significant damage in that state, apart from some cracks in buildings in the city of Coalcoman.
Mexico’s National Civil Defense Agency said the Navy’s tsunami center had not issued a warning because no variation in sea level was expected due to the location of the epicenter. However, that contradicted a warning from the US Tsunami Warning Center. It said dangerous tsunami waves were possible off coasts within 186 miles (300 km) of the epicenter.
Mexico City Mayor Claudia Sheinbaum also tweeted that there were no reports of damage in the capital. Alarms for the new earthquake came less than an hour after an earthquake alarm went off in a nationwide earthquake simulation that marked major, deadly earthquakes that happened on the same date in 1985 and 2017.
Humberto Garza was stuck outside a restaurant in the Roma neighborhood of Mexico City with his 3-year-old son. Like many who walked outside after the quake, Garza said the earthquake alarm sounded so soon after the annual simulation that he wasn’t sure if it was real.
“I heard the alarm, but it sounded very far away,” he said. Dozens of employees waited outside the city’s environmental ombudsman’s office. Some seemed visibly shocked. Power went out in parts of the city, including traffic lights, disrupting the capital’s already infamous traffic.