The magnitude 6.8 quake was centred 61 km southwest of Davao on the southern island of Mindanao, at a depth of 28.2 km, the USGS said, revising down the magnitude from an earlier 6.9.
Mr. Biegun's arrival came a day after North Korea said it made another “crucial test” at a rocket launch site to develop a strategic weapon to deter U.S. nuclear threats.
