The Philippine Institute of Volcanology and Seismology (Phivolcs) on Tuesday, Jan. 16, said a magnitude 5.0 aftershock jolted Surigao del Sur.
The tremor, with a depth of 29 kilometers (km), was an aftershock of the magnitude 7.4 earthquake that rocked Hinatuan, Surigao del Sur last Dec. 2, 2023.
Phivolcs had initially recorded a 4.5-magnitude aftershock on Monday, Jan. 15, at 7:31 p.m. but revised it to magnitude 5.0.
Phivolcs located its epicenter at 31 kilometers northeast of Hinatuan, Surigao del Sur.
Phivolcs has recorded Intensity III (weak) in City of Bislig, Surigao del Sur.
Its instruments also recorded Intensity II (slightly felt) in the City of Bislig, Surigao del Sur, and Intensity I (scarcely perceptible) in the City of Tandag, Surigao del Sur.
The tremor was tectonic or caused by the movement of an active fault near the area, Phivolcs said. Meanwhile, Phivolcs advised that no damages and aftershocks are expected from the tremor.
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