PH lifts tsunami alert after strong earthquake in Surigao del Sur | Inquirer News

PH lifts tsunami alert after strong earthquake in Surigao del Sur

/ 09:34 AM December 03, 2023

The Philippines lifts tsunami alert after strong earthquake in Surigao del Sur

People evacuate following an earthquake, in Hinatuan, Surigao del Sur, Philippines, on December 2, 2023. Hinatuan LGU/Handout via REUTERS

MANILA, Philippines — The country lifted a tsunami alert early on Sunday as waves receded from a magnitude 7.4 earthquake that struck the region near Hinatuan in Surigao del Sur late Saturday night.

The powerful quake triggered coastal evacuations and some waves in Japan. Its magnitude was initially pegged at 7.5. The Philippine Institute of Volcanology and Seismology (Phivolcs) said it was magnitude 6.9, and then changed it to magnitude 7.4 in a bulletin released at 3:23 a.m. on December 3.


There were no initial reports of casualties or serious damage from the quake in the Mindanao region, although some residents reported damage to buildings in the area, which is less populated than some parts of the archipelago.


More than 500 aftershocks were recorded so far, and Phivolcs urged caution as people resumed normal activities.

“The tsunami threat associated with this earthquake has now largely passed the Philippines,” Phivolcs said in a statement but advised people in threatened communities to heed the instructions from local authorities.

It earlier urged people living near the coast of Surigao Del Sur and Davao Oriental provinces to move inland.

But before the tsunami alert was lifted, Phivolcs said it monitored tsunami waves in coastal areas of Hinatuan and Bislig City in Surigao del Sur; Dapa in Surigao del Norte; and Mati in Davao Oriental.

Phivolcs sea level monitoring stations confirmed the occurrence of tsunami with preliminary wave heights of 0.64 meter in Mawes Island, Hinatuan; 0.18 meter in Lawigan, Bislig City; 0.05 meter in Port of Dapa, Surigao del Norte; and 0.08 meter in Mati, Davao Oriental.

The last recorded tsunami wave arrival in the country occurred at 2:52 a.m. on Sunday at the Hinatuan-Bislig Bay Station on Mawes Island in Hinatuan town, according to the tsunami monitor.


Meanwhile, Japan’s Hachijojima island located some 290 km (180 miles) south of Tokyo has recorded waves of 40 cm (1.3 feet), the Japan Meteorological Agency said.

The United States Tsunami Warning System initially warned of waves of up to 3 meters (10 feet) above the usual high tide level.

Earlier Sunday, the national disaster agency said it was assessing the impact of the temblor with a team on the ground collating information.

READ: Another strong quake, 6.1 magnitude, rattles Surigao del Sur

The Philippine Coast Guard put all its vessels and aircraft on alert for potential dispatch.

“We started going back to our homes early on Sunday, although we are still shaking because of aftershocks,” Julita Bicap, 51, a front desk staffer at GLC Suites hotel in the seaside town of Bislig, said after power was restored around 5 a.m. (2100 GMT).

“There are aftershocks even now. Last night we were at the evacuation centre including my two foreigner guests. One of them came back to the hotel already,” Bicap told Reuters, adding that she noticed a small crack in the hotel’s front wall.

The largest aftershock was magnitude 6.5, according to the European-Mediterranean Seismological Centre.

READ: LIST: Killer earthquakes in the Philippines

Earthquakes are common in the Philippines, which lies on the “Ring of Fire,” a belt of volcanoes circling the Pacific Ocean that is prone to seismic activity.

Scores of residents were seen in an evacuation center in photographs posted on social media by authorities in Hinatuan province, 30 km (20 miles) from the quake’s epicenter.

Philvolcs’ Hinatuan-Bislig Bay station recorded maximum waves of 0.64 meter (2 feet). Japan’s Hachijojima island, some 290 km (180 miles) south of Tokyo, recorded waves of 40 cm (1.3 feet), the Japan Meteorological Agency said.

The United States Tsunami Warning System had initially warned of waves of up to 3 meters (10 feet) above the usual high tide level.

READ: Earthquake preparedness saves lives: What to do

The quake, which struck at 10:37 p.m. (1437 GMT) on Saturday, was at a depth of 25 km (15 miles), Philvolcs said.

James Soria, who owns a small hotel in Hinatuan, said there had been significant damage to his home. “It’s shaking again here now,” he told Reuters before the call was disconnected as another aftershock hit.

Cosme Calejesan, 47, said there was damage to his house in Surigao City 185 km (115 miles) from the epicenter but the structure was intact.

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“I was already asleep, but I was woken up by the creaking sounds of my cabinets when the tremor occurred,” he said. “It was frightening. It was sudden and abrupt and I was worried for my children.”

TAGS: Earthquake, Surigao, Tsunami

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