A strong 6.2-magnitude undersea earthquake struck off the coast of Mexico Saturday, US seismologists said.
The US Geological Survey said the quake occurred around 1153 GMT and was located about 184 miles (295 kilometers) southwest of the coastal resort city of Puerto Vallarta. They had earlier put the quake's magnitude at 6.6.
There were no immediate reports of damage from the quake, which occurred at a depth of around 10 kilometers (six miles).
Officials said there was no risk of a tsunami forming from Saturday's quake.
Mexico has been rattled by a number of sizeable quakes in recent weeks. A a strong tremor hit the capital Mexico City on May 8, causing a bridge to collapse and buildings to sway, but no casualties.
A powerful 7.2-magnitude quake last month near the Pacific coast city of Acapulco also caused some building damage and widespread power outages, but no known casualties.