MANILA, May 27 (Xinhua) -- An earthquake with a preliminary magnitude of 5.1 struck Quezon province, east of Manila, on Tuesday, the Philippine Institute of Volcanology and Seismology reported.

MANILA, May 27 (Xinhua) -- The Philippine state weather bureau, PAGASA, on Tuesday warned that 22 areas across the country will experience a "dangerous level of heat index" on Wednesday.