BY EUGENE Y.ADIONG
BACOLOD City – Thursday night’s magnitude 6.3 earthquake that hit Negros Island has not affected the latter’s power supply.
According to the National Grid Corp. of the Philippines (NGCP), there has been no report of power interruption or damaged transmission facilities.
“The Negros sub-grid remains intact,” said NGCP.
After the 6:16 p.m. quake, the Philippine Institute of Volcanology and Seismology (Phivolcs) warned of possible damage and aftershocks.
According to Ismael Narag, seismologist at Phivolcs, the Negros Trench triggered the tremor.
The epicenter was traced 49 kilometers southwest of Hinoba-an, Negros Occidental where the shaking was felt at Intensity 5.
The tremor was offshore but there was no tsunami. It was tectonic in origin.
Intensity gauges the strength of tremors in specific places, and is determined based on its effects on people, human structures and the environment.
Meanwhile, the magnitude of an earthquake is a measure of the energy released at its source.
The United State Geological Survey, meanwhile, placed the earthquake at magnitude 6.2./PN