Two successive submarine earthquakes were reported today, May 20 at the northern and southern points of the Philippines.
A magnitude 4.5 submarine earthquake hit the waters of Ilocos Norte near Pagudpud, while another struck the Celebes Sea near Sultan Kudarat, with a magnitude of 4.3.
The submarine earthquake at Ilocos Norte was reportedly felt at lower intensities at surrounding provinces: Intensity 3 at Bangui, Burgos, and Pasuquin, Ilocos norte, with instrumental intensities at Pasuquin, Ilocos Norte that felt intensity 3 while intensity 2 shook Laoag City. Sinait, Ilocos Sur and Claveria, Cagayan both experienced intensity 1.
Phivolcs reports that neither aftershocks nor tsunami warnings are expected.
The Philippines forms part of the Pacific ‘Ring of Fire’ that accounts for majority of the earthquake and volcanic activity around the world.
