Magnitude 7.2 temblor rocks Bohol, Philippines (Initial assessment)

PDF here This article was originally posted in the UP National Institute of Geological Sciences (NIGS) website.  October 20,2013 Last updated: November 6,2013, 9:30 AM  A.M.F. Lagmay ∗ , R. Eco, R. Ybanez, National Institute of Geological Sciences, College of Science, University of the Philippines, Diliman, Quezon City 1101, Philippines Key words: Bohol earthquake, Magnitude 7.2 earthquake, East Bohol Fault, Philippine earthquake DOST Project NOAH open file report no. 6 pp. 1-15.[…]

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Understanding Rainfall Return Periods

By Rich Ybanez When talking about typhoons and tropical storms which have hit the Philippines in the past, like Ondoy, Sendong, Milenyo, and Reming, one of the common phrases we hear from news outlets and scientists is “that storm was a 50-year rainfall” or “malakas yung ulan noon kasi100-year rainfall yun”. But what exactly does this phrase mean, and more importantly, imply? First of all, this is what is called[…]

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What hit Barangay Andap, New Bataan, Compostela Valley (Initial Assessment)

AMF Lagmay, RN Eco, J Alconis, B Salvio Abstract On 4 December 2012, typhoon Pablo (international name Bopha) made landfall over the Philippine island of Mindanao. More than 44,437 families were evacuated in Mindanao and in the Visayas Region, Central Philippines. Despite advanced warnings and preparations by communities against the tropical cyclone, Pablo exacted heavy damage in Mindanao with 459 deaths, 532 missing and 4.17 billion pesos worth of damage to infrastructure and[…]

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