6.4 magnitude earthquake strikes off coast of southern Philippines

A 6.4 magnitude earthquake struck off the coast of the southern Philippines in the Mindanao region on Wednesday, according to the German Research Center for Geosciences.

The earthquake struck at a depth of 10 kilometers (6.2 miles).

However, no tsunami alert was issued, and there were no immediate reports of casualties or infrastructure damage.

Authorities in the provinces of Sultan Kudarat and Sarangani suspended classes following the earthquake to ensure the safety of students, teachers, and school personnel amid the risk of aftershocks, according to the Philippine Daily Inquirer.

Work at the Sarangani Provincial Capitol was also suspended, except for offices providing essential services.

The Philippines sits on the Pacific "Ring of Fire," one of the world's most active seismic zones, where four major tectonic plates meet.