Magnitude 4.7 quake strikes Zambales, felt in Metro Manila


Posted at Mar 16 2023 12:55 PM | Updated as of Mar 16 2023 02:47 PM

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MANILA (UPDATED) — A magnitude 4.7 earthquake struck Zambales province and was felt in parts of Metro Manila and neighboring areas on Thursday, the Philippine Institute of Volcanology and Seismology (Phivolcs) said. 

The tectonic quake's epicenter was 13 kilometers northeast of Masinloc town. It hit at a depth of 24 kilometers at 12:21 p.m., according to Phivolcs' second bulletin.

The tremor could cause damage, state seismologists warned. 


The quake was felt at a "moderately strong"    Intensity 4 in Alaminos and Binalonan in Pangasinan and San Fernando, Pampanga. 

A shaking this strong is felt generally by people indoors and by some people outdoors and its vibration is felt like the passing of a heavy truck, said Phivolcs.

Here are the other reported intensities, according to Phivolcs.

  • Intensity III - Quezon City; Mandaluyong; Taguig; Infanta, Aguilar, and Villasis, Pangasinan
  • Intensity II - Makati; Baguio City; Bacnotan, La Union; Bolinao, Calasiao, and Santa Barbara, Pangasinan; Dagupan City; Bocaue, Bulacan; Bamban, Tarlac
  • Intensity I - Metro Manila; Malabon; City of Manila; Marikina City; Navotos; Pasay City; Pateros; Santa Maria, Bulacan‚Äč


Phivolcs Director Teresito Bacolcol told ABS-CBN's TeleRadyo that the "shallow" earthquake most likely occurred in the Dasol fault near Zambales.

Bacolcol said the Dasol fault is an existing fault included in their map. He described it as an "active" fault where earthquakes are expected "from time to time."

But geologists are also looking into an "unnamed fault," said Charmaine Villamil, Phivolcs senior science research specialist.

Just last week, the Philippines conducted its first-quarter nationwide simultaneous earthquake drill.

Quakes are a daily occurrence in the Philippines, which sits along the Pacific "Ring of Fire", an arc of intense seismic as well as volcanic activity that stretches from Japan through Southeast Asia and across the Pacific basin.


 — With reports from Rowegie Abanto, ABS-CBN News; Agence France-Presse 

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