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What is ‘THE BIG ONE’

‘Everyone must learned from Surigao del Norte from the recent effects of the magnitude of 6.7. If a similar events happens in a highly urbanized area, the effects can be more devastating’ – Phivolcs director Renato Solidum warned. AP/File 

PHIVOLCS warns Valley Fault Resident

The West Valley Fault, Solidum said, moves roughly every 400 years. The last major earthquake generated by this fault was in 1658 or 357 years ago.
The 100-kilometer fault traverses parts of Bulacan through Quezon City, Marikina, Makati, Pasig, Taguig and Muntinlupa in Metro Manila; San Pedro, Biñan, Sta. Rosa, Cabuyao and Calamba in Laguna; and Carmona, General Mariano Alvarez and Silang in Cavite.

Some places experience earthquake as of 8:58-9:00PM (April 5th) with 5.4 magnitude.


According to Inquirer.net ‘A 5.4-magnitude earthquake hit Luzon on Tuesday evening, according to the Philippine Institute of Volcanology and Seismology (Phivolcs).

An earthquake bulletin issued by the agency said the quake, with an epicenter 7 kilometers northwest of Batangas, was felt in different parts of Luzon at 8:58 p.m.

The quake, which was tectonic in origin, was felt at Intensity IV in Makati City and Obando, Bulacan.’

After shock jolt Batangas following strong quakes.

(2nd UPDATE) The Philippine Institute of Volcanology and Seismology (Phivolcs) has recorded more than a dozen aftershocks following the magnitude 5.5 earthquake that rocked Batangas province and other nearby areas Tuesday night.

As of 1:00 a.m., Phivolcs has recorded 17 earthquakes in the area.

A magnitude 4.6 earthquake was recorded at 9:11 p.m., followed by a magnitude 2.5 quake at 9:17 p.m.

A third earthquake at magnitude 2.6 was recorded at 9:26 p.m. 

A fourth, slightly stronger magnitude 4.0 quake was recorded at 10:09 p.m., followed by a magnitude 2.2 at 10:18 p.m. and a magnitude 2.1 quake at 10:26 p.m.

A seventh earthquake at magnitude 4.2 was recorded at 10:38 p.m., followed by a magnitude 4.4 earthquake at 10:44 p.m.

A ninth earthquake at magnitude 3.0 was recorded at 11:11 p.m.

A magnitude 4.5 earthquake was recorded at 11:13 p.m. in Balayan town in Batangas, located opposite Tingloy.

Kristofferson Vidad, science research assistant of Phivolcs’ Earthquake Monitoring Division, said the latest earthquake can still be considered an aftershock due to its proximity to the original epicenter.

An 11th magnitude 2.8 earthquake rocked Tingloy at 11:34 p.m, followed by a magnitude 2.6 earthquake at 11:40 p.m.

A 13th magnitude 2.9 earthquake was recorded at 11:54 p.m, followed by a magnitude 2.4 earthquake at 12:11 a.m. and a magnitude 2.7 earthquake at 12:20 a.m.

A 16th magnitude 2.0 earthquake was recorded at 12:35 a.m. in San Luis town in Batangas.Another magnitude 2.8 rocked Tingloy at 12:40 a.m.

The magnitude 5.5 quake’s epicenter was located 7 kilometers northwest of Tingloy town, Batangas. It struck at 8:58 p.m.

The tremor was felt as Intensity 4 in Makati City and Obando, Bulacan, and Intensity 3 in Mandaluyong City, Quezon City, General Trias and Dasmariñas in Cavite, Santa Ana in Manila and in Lucena City in Quezon.

It was felt as Intensity 2 in Talisay, Batangas, and Pasig City.

Phivolcs describes Intensity 4 as “moderately strong.” It can be felt like the passing of a heavy truck and can rattle wood-framed buildings, the agency said. 

Intensity 3, meanwhile, is described as “weak” and may cause hanging objects to swing moderately. 

Phivolcs said no major damage was expected from the earthquake.

It added that the tremor is not expected to cause a tsunami.’ ABS-CBN News

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Malapit na nga ba magkaroon ng THE BIG ONE on following places (The 100-kilometer fault traverses parts of Bulacan through Quezon City, Marikina, Makati, Pasig, Taguig and Muntinlupa in Metro Manila; San Pedro, Biñan, Sta. Rosa, Cabuyao and Calamba in Laguna; and Carmona, General Mariano Alvarez and Silang in Cavite.) Sana ay Hindi manalig lang tayo sa ating diyos at Sana Hindi dumating ang BIG ONE.