Probabilistic tsunami hazard analysis of Batangas, Philippines

Date

6-2015

Degree

Bachelor of Science in Civil Engineering

College

College of Engineering and Agro-Industrial Technology (CEAT)

Adviser/Committee Chair

Jedidiah Joel C. Aguirre

Abstract

Probabilistic Tsunami Hazard Analysis was conducted for Batangas, Philippines. The study utilized the 112-year earthquake record from International Seismological Centre, cross-referenced with the available Philippine tsunami catalogue. The earthquake catalogue was homogenized to moment magnitude and declustered to remove dependent events. One-minute grid bathymetric map from General Bathymetric Chart of the Oceans was used as the base map for tsunami simulation. Fifty-four sites were identified along the coast of Batangas and two near-field tsunami sources namely, Manila Trench Section 3 and 4, were considered in tsunami hazard analysis. Distance Probability Density Function (PDF) were determined for each pair of source and site and magnitude PDF were generated from their G-R relation and maximum magnitude. Each pair of bins from both PDFs were used to conduct a tsunami simulation using Cornell Multi-grid Coupled Tsunami model. The resulting wave heights for each simulation was fitted in a normal curve. Hazard curves were generated for tsunami return periods of 475, 975 and 2475 years. From the results, it was identified that the highest tsunami wave heights occur in Binubusan, Batangas, while the lowest wave heights occur in the area of San Juan and Laiya, Batangas for all return periods considered. Generally, the wave heights on the western coast of Batangas tend to have higher tsunami heights which is contributed by its proximity to the tsunami sources while the eastern coast experiences lower tsunami heights.

Language

English

Location

UPLB College of Engineering and Agro-Industrial Technology (CEAT)

Call Number

LG 993.5 2015 E63 /M67

Document Type

Thesis

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