600 aftershocks jolt Mindanao

Credit to Author: Tempo Desk| Date: Sun, 20 Oct 2019 05:58:12 +0000

A MASSIVE crack appears on the ground in Barangay Malawanit, Magsaysay, Davao del Sur, following the magnitude-6.3 earthquake that rocked Mindanao last Thursday. (Keith Bacongco)

More than 600 aftershocks have been recorded by the Philippine Institute of Volcanology and Seismology three days after a magnitude-6.3 earthquake hit Mindanao last Thursday.

According to Phivolcs science research specialist Dante Soneja, 663 small-to-strong magnitude aftershocks have been documented as of 8 a.m. Sunday. Three-hundred twenty-four were plotted from their original source, Tulunan, North Cotabato, while only 27 were felt.

Phivolcs said the destructive earthquake was generated by the movement of a northwest-trending strike-slip fault in Tulunan.

According to Phivolcs, four onshore earthquakes ranging from magnitude-five to magnitude-7.6 have occurred in Cotabato and nearby areas from 1924 to present. Small-magnitude earthquake swarms less than magnitude four were also recorded from April to May 1993 and August 2007.

Phivolcs said the most recent event that affected Cotabato is the magntiude-5.6 earthquake last July 9. The maximum intensity of this event was felt in Makilala, Kidapawan City, Matalam, M’lang, and Antipas, all in Cotabato,
http://tempo.com.ph/feed/