Earthquake Hits Dumaguete City, Negros Oriental and Occidental

By Judy Flores Partlow

Residents of Dumaguete and other parts of Negros Oriental, to include areas in Negros Occidental, were jolted out of their sleep at 4:47 a.m. Tuesday by a strong magnitude 6.2 earthquake following smaller tremors the day before.

The temblor was of tectonic in origin, with its epicenter 93 kilometers south, 66 degrees west of Dumaguete, a report from the Philippine Institute of Volcanology and Seismology (Phivolcs) said.

As of press time, aftershocks were being recorded by the Phivolcs center in Sibulan, Negros Oriental, said Joe Molas of the local Phivolcs office.

This is the second day that Panay and Negros Islands have felt tremors as geologists continue to monitor what they believe is the shifting of tectonic plates at the Negros trench.

Four other earthquakes were reported at 5:06, 5:18, 10:14 and 11:07 p.m. Monday although these could hardly be felt by humans, said Molas.

The Phivolcs could not yet give the magnitude or strength of these quakes, although according to Molas, the surface wave amplitude of these were around 7,000 on the seismograph.

This morning’s “main shock” recorded surface wave amplitude of 391,070, Molas said.

The magnitude 6.2 earthquake was felt at Intensity V in Sipalay, Negros Occidental, Intensity IV in Dumaguete and Sibulan, Negros Oriental and Binalbagan and Hinigaran in Negros Occidental and in Oton, Iloilo; Intensity III in San Jose, Antique, Dapitan City, and Talisay City in Negros Occidental; Intensity II in Cagayan de Oro City, Dipolog City, La Carlota City in Negros Occidental and Intensity I in La Castillana in Negros Occidental, a Phivolcs report said.

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