Earthquakes shook a broad swath of southern Mexico on Tuesday, causing buildings to sway in the capital and sending thousands fleeing into the streets as an earthquake alarm sounded. But there were no immediate reports of damages or injuries.

The U.S. Geological Survey said a magnitude-5.5 quake hit at 7.04 a.m. (6.30 p.m. IST), centred about 20 km west-southwest of Pinotepa Nacional on the Pacific Coast and 365 km south-southeast of Mexico City.

Mexico Seismology Service initially calculated the quake’s magnitude at 5.9.

A second quake shook the region a few minutes later.

Mexico City’s soft soil makes it especially sensitive to distant earthquakes. But Mayor Manuel Mancera said in a Twitter post that no damage was reported. Local news media also said there were no reports of damage close to Pinotepa Nacional.

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