Magsaysay, Davao Del Sur under state of calamity

Aileen Cerrudo   •   October 18, 2019   •   655

Magsaysay, Davao Del Sur has declared a state of calamity after a 6.3 magnitude earthquake rocked parts of Mindanao on Wednesday (October 16).

This is due to the amount of damage brought by the strong quake. According to Mayor Arthur Davin the calamity fund will be used to provide food for the victims of the earthquake.

The local government will also coordinate with other government agencies to aid residents who have lost their homes.

Based on the report of the local government, around 204 houses are totally damaged while more then 600 are partially damaged.

The local government is also calling out to the national government to also provide assistance.

According to the National Disaster Risk Reduction Council (NDRRMC), more than 600 families or over 3,000 individuals were affected by the earthquake. Death toll has reached five while 89 were injured.—AAC (with reports from Janice Ingente)

Magnitude 5.4 quake rattles Davao Occidental

Robie de Guzman   •   February 20, 2020

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.

Danger remains as volcanic activities increase in Taal

Marje Pelayo   •   January 20, 2020

Aerial photos Taal Volcano eruption aftermath epa08135676 Handout aerial photo provided by the Office of Civil Defense shows the Taal Volcano crater in Batangas province, south of Manila, Philippines, 17 January 2020. The Philippine Institute of Volcanology and Seismology (PHIVOLCS) has kept the alert level at four, following the volcano’s eruption on 12 January 2020. EPA-EFE/OFFICE OF CIVIL DEFENSE HANDOUT HANDOUT EDITORIAL USE ONLY/NO SALES

MANILA, Philippines – Over a week since Taal Volcano began its eruptive activity, danger still remains according to experts.

In fact, a total of 787 earthquakes have been recorded in the volcano island on Saturday (January 18) alone, according to the Philippine Institute of Volcanology and Seismology (PHIVOLCS).

This frequency of ground shaking is double the number of all volcanic earthquakes recorded in the previous six days of Taal’s volcanic activity.

Over the weekend, more than 200 tremors were recorded within the range of magnitude 1.2 and 4.1, the PHIVOLCS said and on Sunday evening (January 19), the strongest shaking – magnitude 4.2 earthquake – was felt in Mabini, Batangas.

The volcano institute have also observed that Taal is producing about one-kilometer high white ash pillar and sulfur dioxide of around 1,442 tons each day.

Because of these observations, PHIVOLCS cannot just lift or downgrade Alert Level 4 that is currently in effect around the volcano island because the possibility of a massive explosive eruption remains high within hours or days.

Thus, PHIVOLCS strongly appeals for understanding and more patience from residents and reminds them not to return yet to their villages especially those within the 14-km danger zone.

Volcanic earthquakes recorded in Taal:

  • January 19 – 787
  • January 18 – 366
  • January 17 – 65
  • January 16 – 103
  • January 15 – 159
  • January 14 – 49
  • January 13 – 52

Source: PHIVOLCS

Fault system in S. Mindanao possibly to generate higher than M6 earthquake —PHIVOLCS

Marje Pelayo   •   December 17, 2019

MANILA, Philippines – The Mindanao region has been experiencing strong ground shaking in the past months.

The most recent was a magnitude 6.9 earthquake on Sunday (December 15) which according to the Philippine Institute of Volcanology and Seismology (PHIVOLCS) was caused by the Tangbulan fault, a 69.2 kilometer stretch that traverses Davao del Sur to Davao Oriental.

According to PHIVOLCS OIC and S&T Undersecretary Renato Solidum, these movements can cause other faults in the region to move as well.

From 1908 to 1970, around five incidents of ground shaking with intensities no stronger than 5 to 8 were experienced across the Davao Region.

The agency noted Southern Mindanao as among the places in the country that sit on multiple fault systems.

The Tangbulan fault alone, the agency explained, can generate up to magnitude 7.2 earthquake.

Towards the east of Tangbulan fault is the Digos fault which can produce up to magnitude 6.3 tremor.

Towards the west is the Makilala-Malungon fault which can generate up to magnitude 7.2 earthquake and is connected to the Cotabato Fault system.

Near the Cotabato fault system lies other faults including the Makilala Fault, Balabag Fault, Matalam Fault, M’lang Fault, North Columbio Fault and the South Columbio Fault.

These faults also can cause ground shaking even stronger than magnitude 6.

The earthquake in October this year, PHIVOLCS noted, was caused by the Cotabato Fault System.

The agency is now closely monitoring the movements of these faults especially those which have been active in the past 10 years.

“Overall sa Mindanao, itong Cotabato-Davao del Sur area ay isa sa rehiyon na walang masyadong malakas na earthquake (Overall in Mindanao, this Cotabato-Davao del Sur stretch is one area in the region that produces small earthquakes),” Solidum said.

“Ibig sabihin may fault, naiipon ang energy, and at some point magbibigay ito, ipapakawala niya ang energy kung kumilos ang fault. So mga strong to major earthquakes ang kaya niya (This means, these faults are generating energy and at some point, it will eventually release this energy when the fault moves. That time, they can produce strong to major earthquakes),” the official added.

Aside from structural damages, PHIVOLCS also warns of possible landslide due to aftershocks or strong rains in mountainous areas where cracks are already visible because of the previous ground shaking. MNP (with details from Rey Pelayo)

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