Strong earthquake hits Surigao del Sur, tsunami alert issued by Phivolcs
The magnitude 6.9 earthquake was felt in Mindanao and in parts of the Visayas including Cebu
People converge on the main streets of Butuan City, anxious to return to their homes after the strong tremor on Saturday night, Dec. 2, 2023. (Photo by ERWIN M. MASCARIÑAS / Inquirer Mindanao)
The region near Hinatuan in Surigao del Sur was struck by a powerful earthquake of magnitude 6.9 at 10:37 p.m. Saturday, said the Philippine Institute of Volcanology and Seismology (Phivolcs).
According to an Associated Press report earlier, that the United States Geological Survey reported the magnitude to be 7.6,
Phivolcs also issued a tsunami warning after the tremor.
“Based on the local tsunami scenario database, it is expected to experience wave heights of more than one meter above the normal tides and may be higher on enclosed bays and straits. Destructive tsunami is expected with life-threatening wave heights,” Phivolcs said.
“It is forecasted that the first tsunami waves will arrive between 10:37 PM to 11:59 PM, 02 Dec 2023 (PST). These waves may continue for hours,” it added.
READ: Magnitude 6.9 quake jolts Hinatuan in Surigao del Sur, tremors felt in Cebu
Evacuation in Japan
The strong earthquake triggered evacuation orders for some areas in the southwestern Japanese coasts because of warnings of tsunami waves of a meter (3 feet) or more.
The US Tsunami Warning System said there could be waves of up to 3 meters above the tide level along some Philippine coasts.
“Boats already at sea during this period should stay offshore in deep waters until further advised,” Phivolcs said, asking people living near the coast of Surigao Del Sur and Davao Oriental provinces to “immediately evacuate” or “move farther inland.”
The Japanese broadcaster NHK said tsunami waves of up to a meter were expected to reach Japan’s southwestern coast around 30 minutes later — by 1:30 a.m. on Sunday (1630 GMT on Saturday | 0030 PH time on Sunday)
Phivolcs said it did expect significant damage from the tremor itself, but warned of aftershocks.
Aftershocks expected
Butuan residents jumped out of their beds and ran out of their houses here on Saturday night as the earth shook. Others who were still awake and just lingering about also rushed into the streets.
Montilla Boulevard and JC Aquino Avenue, Butuan City’s main thoroughfare, were filled with people who had yet to shake off their fear of the earthquake.
The shaking there lasted over 30 seconds.
In Surigao City, a resident told the Inquirer that the merchandise in their store fell to the ground amid the shaking.
No damage has so far been reported, but Phivolcs said aftershocks could occur.
Power outages
Power was cut off throughout Agusan del Sur province following the strong earthquake.
According to an advisory from the Agusan del Sur Electric Cooperative (Aselco), the brownout occurred at the height of the tremor.
Aselco added that its technicians were already deployed to assess its power lines and facilities to check whether these were affected by the strong temblor.
Aselco further said that they are awaiting the advice of the National Grid Corporation of the Philippines as power transmission from it was also lost.
Raymark Gentallan, local police chief of the coastal town of Hinatuan near the earthquake’s epicenter, said power has been knocked out since the quake struck, but disaster response teams have not monitored any casualties or damage yet.
The power went off in parts of Butuan City and was not yet restored as of 11 p.m.
Many Butuan residents suffered hyperventilation, and some of them had to be rushed to hospitals.
Several people in Butuan City suffered hyperventilation amid the strong shaking on Saturday night, Dec. 2, 2023, due to the magnitude 6.9 quake off Hinatuan, Surigao del Sur. (Photo by ERWIN M. MASCARIÑAS / Inquirer Mindanao)
Also felt in the Visayas
Tremors were also felt in several parts of the Visayas and Mindanao, with netizens in Cebu reported to have felt the ground shaking, according to the Cebu Daily News.
The epicenter of the strong earthquake was located at 42 kilometers north-northeast of Hinatuan.
Phivolcs reported that the quake had a shallow depth of focus at 8 kilometers and was of tectonic origin.
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