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Damage to Manay's hospital |
The Philippines has counted eight people dead, 395 injured and almost half a million people affected as aftershocks, the strongest at magnitude 6.8, continued to rumble through Mindanao today following last Friday’s 7.4 magnitude earthquake that originated 48 kilometers off Manay, Davao Oriental.
The Manay quake followed the 6.9
magnitude quake that originated 19 kilometers northeast of Bogo, Cebu, on Sept.
30 and caused extensive damage mainly to Cebu’s oldest churches, and neighboring
provinces, leaving 74 dead and 559 injured.
As hundreds of aftershocks have rolled up and down the
archipelago -- originating in west of La Union, Zambales and Batangas in Luzon, as well as mostly in
northern Cebu in the Visayas and the Davao region in Mindanao -- at least four
volcanoes were reported acting up, although experts said they may not be related.
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Pindutin para sa detalye |
Kanlaon Volcano in Negros Occ. has emitted ash, prompting
the Philippine Institute of Volcanology and Seismology (Phivolcs) to raise Alert
Level 2, while Bulusan Volcano in Sorsogon registered 72 volcanic earthquakes, prompting
Alert Level 1, along with Mayon and Taal in Albay and Batangas.
Following the Mindanao quakes, the National Disaster Risk
Reduction and Management Council has counted 8,440 persons displaced and sheltered
in evacuation centers, while relief supplies such as food packs and temporary
shelters had been distributed to some 79,000 people.
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It estimated a P100,258,000 cost for 273 damaged government
faciilties in Davao and Caraga regions, including 32 road sections and eight
bridges.
More earthquake hazards
may be expected, Philvocs said.
“Earthquake-induced landslides, rock falls, and other types
of mass movement may occur on sloping terrains, specifically in mountainous or
hilly areas. Liquefaction, manifested by subsidence, ground fissures, sand
boils, and/or lateral spreads, may affect low-lying, water-saturated, and sandy
areas near water bodies. Active river channels and coastal areas may be
vulnerable to inundation of seawater due to the combination of
liquefaction-induced subsidence and changes in sea level due to high tide.
Sinkholes may appear in areas with limestone bedrock,” it added.
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PINDUTIN PARA SA DETALYE |
Strong earthquakes are not new to Davao Oriental and
surrounding areas.
Records show at least six significant earthquakes with
magnitudes ranging from M7.1 to M8.3 hit Davao Oriental and nearby provinces
between 1885 and 2023, because it is located in one of the most seismically
active regions of the country.
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Basahin ang detalye! |
“The most recent damaging earthquakes were the MS7.1 and
MS7.5 earthquakes in Manay, Davao Oriental, on 17 May 1992. In both
earthquakes, several buildings and infrastructure were damaged in Davao
Oriental Province. A tsunami hit the eastern coast of Mindanao as well,”
Philvolcs said.