The Philippine Institute of Volcanology and Seismology (PHIVOLCS) said on Monday the multiple quakes felt in Batangas and nearby parts of Luzon are part of a “swarm” which can last for days.
PHIVOLCS Director Renato Solidum the public may expect more temblors in the coming days following the series of quakes in Batangas during the weekend. He added that the series of earthquakes are all related as one fault system or one fault moving incrementally to generate succeeding or successive small earthquake events. He however allayed fears that the ‘Big One’ was at hand explaining that the faults in Batangas and other areas are not connected to the West Valley fault. On Saturday afternoon the town of Mabini in Batangas experienced earthquakes a minute apart: first a magnitude 5.7 at 3:08 p.m., followed by a magnitude 5.9. A third quake hit Taysan town also in Batangas 20 minutes later at magnitude 5.0.