A strong earthquake has rocked the Philippines. An earthquake measuring a magnitude 6.5 has struck the the Philippine island of Mindanao.

The quake was very shallow at 6.3 miles deep and occurred about 225 km (140 miles) ESE of Davao City on the island of Mindanao at 7:46 AM MDT, Aug 20, 2007 (9:46 PM local time in Philippines), according to the USGS.

As of yet there has been no Tsunami warnings issued from the Pacific Tsunami Warning Center. There are also no reports yet of any damage.

The Philippines is hit by an average of six earthquakes every day but most are too weak to be felt.

On July 16, 1990 at 4:26 p.m. local time, a severe earthquake registering 7.7 on the Richter scale struck the northern Philippines. The earthquake caused damage over a region of about 7700 square miles, extending northwest from Manila through the densely populated Central Plains of Luzon and into the mountains of the Cordillera Central.

Over 5,000 people were reported dead or injured, and in excess of 2300 infrastructures were either destroyed or seriously damaged. While the quake was indeed devastating, it was not an unusual occurrence in the Philippines; since 1950 alone there have been six major earthquakes at various locations in the archipelago, having magnitudes ranging from 7.3 to 8.3.