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Aftershocks rocked for one month which the strongest was the February 17, 2021 - Mw 4.8 in Magsaysay Davao del Sur (Intensity IV) and Mw 3.6 (Intensity III), February 24, 2021 - Ms 4.1 in Magsaysay Davao del Sur (Intensity III), March 1, 2021 - Ms 4.8 in Columbio Sultan Kudarat (Intensity IV) and Ms 3.1 (Intensity III), and March 4, 2021 - Ms 4 ...
The focal mechanism indicates strike-slip faulting with either sinistral movement on a NW-SE trending fault or dextral movement on a SW-NE trending fault, but the distribution of the aftershocks are consistent with the sinistral fault plane. [2] The earthquake may be the result of movement on the Tangbulan Fault, according to PHIVOLCS. [7] [8] [9]
The Philippine fault system is a major inter-related system of geological faults throughout the whole of the Philippine Archipelago, [1] primarily caused by tectonic forces compressing the Philippines into what geophysicists call the Philippine Mobile Belt. [2]
The same part of the fault zone is thought to have ruptured in the 1645 Luzon earthquake. [7] Further south the fault ruptured during the 1973 Ragay Gulf earthquake. In central Mindanao, the Cotabato fault system consists of a mixture of NW-SE trending left lateral and SW-NE trending right lateral strike-slip faults.
The earthquake struck near Davao Oriental early on Thursday morning, August 12. PHIVOLCS earlier listed the earthquake as magnitude 7.3 at a depth of 69 kilometers, then revised its advisory to a magnitude 7.2 earthquake, which occurred at a depth of 50 kilometers.
A newly found fault line with a rare slanted angle shows why an earthquake rattled New York City in April harder than its epicenter in New Jersey — and may be a bigger seismic activity threat ...
Several houses and bridges, as well as a mosque were damaged, power outages occurred and people fainted due to the earthquake in Davao City. [40] [32] Patients were evacuated from a hospital in Butuan [41] and a fire broke out in another hospital due to a short circuit. [29] At least 62 houses were destroyed and 1,147 others were damaged in ...
To map the subduction zone, researchers at sea performed active source seismic imaging, a technique that sends sound to the ocean floor and then processes the echoes that return. The method is ...