MEXICO CITY — A strong earthquake rattled southern and central Mexico on Friday, interrupting President Claudia Sheinbaum 's first press briefing of the new year as seismic alarms sounded.

The earthquake had a preliminary magnitude of 6.5 and its epicenter was near the town of San Marcos in the southern state of Guerrero near the Pacific coast resort of Acapulco, according to Mexico 's national seismological agency.

The state’s civil defense agency reported various landslides around Acapulco and on other highways in the state.

Residents and tourists in Mexico City and Acapulco rushed into the streets when the shaking began.

The U.S. Geological Survey said the earthquake occurred at a depth of 21.7 miles (35 kilometers), 2.5 miles north-northwest of Rancho Viejo, Guerrero, which is in the mountains about 57 miles northeast of Acapulco.

Sheinbaum, who resumed her press briefing a short time later, said she spoke with Guerrero's Gov. Evelyn Salgado, who told her there was no serious damage reported.

José Raymundo Díaz Taboada, a doctor and human rights defender who lives on one of the peaks ringing Acapulco, said he heard a strong rumble noise and all the neighborhood dogs began barking.

“In that moment the seismic alert went off on my cell phone," he said, "and then the shaking began to feel strong with a lot of noise.”

He said the shaking was lighter than in some previous quakes and he had prepared a backpack of essentials to be ready to leave as the aftershocks continued.

He said he had been unable to reach some friends who live along the Costa Chica southeast of Acapulco because communications were cut.

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