An earthquake with a preliminary magnitude of 7.6 struck Saturday off the cost of the southern Philippines island of Mindanao. A tsunami warning was issued.

The quake struck at 10:37 p.m. and was measured at a moderate depth of 32 kilometers (20 miles).

The Pacific Tsunami Warning Center said based on the magnitude and location it expected tsunami waves to hit the southern Philippines and parts of Indonesia, Palau and Malaysia.