A magnitude 7.6 earthquake shook Mexico's central Pacific coast on Monday, killing at least one person and setting off a seismic alarm in the rattled capital on the anniversary of two earlier devastating quakes.
There were at least some early reports of damage to buildings from the quake, which hit at 1:05 p.m. local time, according to the U.S. Geologic Survey, which had initially put the magnitude at 7.5.
It said the quake was centered 37 kilometers (23 miles) southeast of Aquila near the boundary of Colima and Michoacan states and at a depth of 15.1 kilometers (9.4 miles).
President Andrés Manuel López Obrador said via Twitter that the secretary of the navy told him one person was killed in the port city of Manzanillo, Colima when a wall at a mall collapsed.
In Coalcoman, Michoacan, near the quake's epicenter, buildings were damaged, but there were not immediate reports of injuries.
"It started slowly and then was really strong and continued and continued until it started to relent," said 16-year-old Carla Cárdenas, a resident of Coalcoman. Cárdenas ran out of her family's hotel and waited with neighbors.
Mexico's National Civil Defense agency said that based on historic data of tsunamis in Mexico, variations of as much as 32 inches (82 cm) were possible in coastal water levels near the epicenter.
The U.S. Tsunami Warning Center said that hazardous tsunami waves were possible for coasts within 186 miles (300 kilometers) of the epicenter.
"This is a coincidence," that this is the third Sept. 19 earthquake, said U.S. Geological Survey seismologist Paul Earle. "There's no physical reason or statistical bias toward earthquakes in any given month in Mexico."
Power was out in parts of the city, including stoplights, snarling the capital's already notorious traffic. –