MANILA, Philippines – A magnitude 5.4 earthquake rattled parts of Davao Occidental on Thursday afternoon, the Philippine Institute of Volcanology and Seismology (Phivolcs) reported.
In its bulletin, Phivolcs said the epicenter of the quake that struck around 5:54 p.m. was traced 35 kilometers southeast of Jose Abad Santos in Davao Occidental.
It had a depth of 190 kilometers and tectonic in origin.
The tremor was felt at intensity III in General Santos City, Tupi and Polomolok in South Cotabato, and Alabel, Saranggani; intensity II in Maasin and Malapatan, Sarangani, and Davao City, while intensity I was felt in Tampakan, South Cotabato.
Phivolcs said there was no reported damage but aftershocks should be expected.
MANILA, Philippines – The Philippine Institute of Volcanology and Seismology (Phivolcs) on Thursday said it has downgraded the alert on Taal Volcano to level 1 following the decrease in volcanic quakes and surface activity at the main crater.
In its bulletin, Phivolcs said the Taal Volcano’s condition in the succeeding four weeks after its alert was lowered to level 2, has been characterized by low-level volcanic earthquake activity, stabilizing ground deformation of the Taal Caldera and the Taal Volcano Island edifices, and weak surface activity at the Main Crater and the Daang Kastila fissure.
“DOST-PHIVOLCS is lowering the alert status of Taal Volcano from Alert Level 2 to Alert Level 1 to reflect the overall decreasing trend in the level of monitoring parameters,” its bulletin reads.
State volcanologists said that alert level 1 means that the volcano is still in “abnormal condition,” and that this “should not be interpreted that unrest has ceased or that the threat of an eruption has disappeared.”
Under alert level 1, sudden steam-driven or phreatic explosions, volcanic earthquakes, minor ashfall and lethal accumulations or expulsions of volcanic gas can occur and threaten areas within the Taal Volcano Island.
The alert level may be raised back to alert level 2 “should pronounced change in monitored parameters forewarn of renewed unrest,” Phivolcs said.
The agency reminded residents that entry to Taal’s permanent danger zone, especially the vicinities of the Main Crater and the Daang Kastila fissure, remains strictly prohibited.
The Taal Volcano was placed under alert level 4 when it spewed ash on January 12 which sent thousands of residents to temporary shelters and disrupted businesses in surrounding areas.
It was later lowered to alert level 2 several weeks later due to decreased unrest. — ROBIE DE GUZMAN
Nine people died and hundreds of buildings collapsed in southeastern Turkey on Sunday (February 23) after a magnitude-5.7 earthquake struck near the border with Iran, injuring dozens in villages and towns in both countries, government officials said.
Three of those killed were children and 37 Turks were injured, including nine critically, Turkey’s health ministry said.
The shallow tremor caused more than 1,000 buildings to collapse in Turkey, prompting a brief rescue effort to find those trapped under rubble.
The quake damaged buildings some 90 km (56 miles) to the west in the Turkish city of Van, and to the east in dozens of villages in Iran, where state TV said 75 people were injured including six in hospital, though there were no fatalities.
Crisscrossed by major fault lines, Iran and Turkey are among the most earthquake-prone countries in the world.—Yesim Dikmen via Reuters Connect
MANILA, Philippines – The Philippine Institute of Volcanology and Seismology (PHIVOLCS) reported only about 29 volcanic earthquakes around Taal Volcano in the past 24 hours, an indication that rocks underground are breaking.
A column of white steam also continues to form but only up to 50 meters in height.
It has been a week since PHIVOLCS downgraded alert level over the Taal volcano to level 2 from the previous level 3.
According to PHIVOLCS OIC Usec. Renato Solidum, they need to observe Taal volcano’s activities for one more week before they can decide whether to further downgrade the alert status based on the agency’s standard operating procedure.
“Basta tuloy-tuloy ang kanyang mga parametro na bumababa ang bilang pwede natin masabi na pwede nating ibaba ito sa alert level number one (If the parameters continue to reduce in number, we might lower the alert level to number one),” Solidum said.
Entry restrictions remain within the permanent danger zone in Taal Volcano Island.
Solidum said the local government unit needs to assess first if the former residential areas would be conducive for living.
PHIVOLCS does not recommended constructing houses on the volcano island due to the risk of having the ground break apart should the volcano proceed to erupt. MNP (with details from Rey Pelayo)
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