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Manila Bulletin devider Philippines devider Metro Manila devider Intensity IV earthquake felt in Muntinlupa; city hall employees evacuated

Intensity IV earthquake felt in Muntinlupa; city hall employees evacuated

Published Oct 13, 2023 02:24 am

Muntinlupa City hall employees were evacuated when a magnitude 5 earthquake hit Calaca, Batangas on Oct. 13. 

According to the Philippine Institute of Volcanology and Seismology (PHIVOLCS), the earthquake struck Calaca at about 8:24 a.m. 

Muntinlupa_Oct132023A.jpg

An intensity IV earthquake registered on Oct. 13 on the  Philippine Earthquake Intensity Meter Network installed in Muntinlupa (Photo from the Muntinlupa PIO)

The Muntinlupa City Department of Disaster Resilience and Management said the earthquake registered an intensity IV in the city based on the reading on the Philippine Earthquake Intensity Meter Network. 

Under PHIVOLCS’ intensity scale guide, an intensity IV is a “moderately strong” earthquake.  

“Felt generally by people indoors and by some people outdoors. Light sleepers are awakened. Vibration is felt like a passing of heavy truck. Hanging objects swing considerably. Dinner, plates, glasses, windows and doors rattle. Floors and walls of wood framed buildings creak. Standing motor cars may rock slightly. Liquids in containers are slightly disturbed. Water in containers oscillate strongly. Rumbling sound may sometimes be heard,” according to PHIVOLCS. 

Following the earthquake, the hashtags #lindol and #earthquake, and topics Batangas, Metro Manila, and Cavite trended on X (formerly Twitter).  

Here are the reported instrumental Intensities recorded by PHIVOLCS for the Calaca, Batangas earthquake:

Intensity V - Lemery, BATANGAS

Intensity IV - Cuenca, Bauan, Sta. Teresita, and San Luis, BATANGAS; Tagaytay City, CAVITE; Muntinlupa City, METRO MANILA

Intensity III - Laurel, Batangas City, BATANGAS; Tagaytay City, CAVITE; Dolores, QUEZON

Intensity II - Talisay, and Rosario, BATANGAS; Magallanes, CAVITE; Boac, MARINDUQUE; City of Las Pinas, City of Pasay, METRO MANILA; Puerto Galera, ORIENTAL MINDORO; Mauban, Polillo, and Gumaca, QUEZON; Taytay, Antipolo, RIZAL

Intensity I - Dinalupihan, BATAAN; Malvar, BATANGAS; Malolos City, and Guiguinto, BULACAN; Ternate, CAVITE; San Pablo, LAGUNA; Malabon City, Pateros, City of San Juan, City of Paranaque, METRO MANILA; Abra De Ilog, and Mamburao, OCCIDENTAL MINDORO; Lucban, Lucena City, and Alabat, QUEZON; Tanay, RIZAL

 

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