40 aftershocks logged after 6.3-magnitude Calatagan quake

By Gabriela Baron

Forty aftershocks were logged by the Philippine Institute of Volcanology and Seismology (Phivolcs) after the magnitude 6.3 that hit Calatagan, Batangas on June 15.

As of 6:00 p.m. Saturday, June 17, Phivolcs recorded a total of 40 earthquakes.

Of the number, 19 were plotted, while none were felt. Magnitudes range from 1.4 to 3.1.

Phivolcs earlier attributed the 107-deep tremor to the movement of the Manila Trench, considering its depth.