A major undersea earthquake struck southeast of the Philippines this morning.

It struck at 1:46 a.m. on August 12, Manila time (10:45 a.m. on August 11, Vancouver time).

The Philippine Institute of Volcanology and Seismology (PHIVOLCS) and the U.S. Geological Survey measured it as a 7.1-magnitude seismic event.

PHIVOLCS stated that the depth of focus was at 39 kilometres (24 miles) while the U.S. Geological Survey listed it at a depth of 65 kilometres (40 miles).

The epicentre was located 63 kilometres (39 miles) east of Pondaguitan, Philippines; 80 kilometres (50 miles) southeast of Mati, Philippines; and 142 kilometres (88 miles) southeast of Davao, Philippines.

A tsunami warning was issued for the Philippines but it was later called off. No tsunami warning was issued for the West Coast of North America.

Later on in the day, it was followed by two other quakes that were 4.4- and 4.9-magnitude.