Iloilo City earthquake model: Event-based probabilistic seismic risk assessment

Dublin Core

Title

Iloilo City earthquake model: Event-based probabilistic seismic risk assessment

Subject

Earthquakes

Emergency management

Description

Each earthquake event generates a specific ground motion field on a particular site. The ground motion field or hazard, impacts buildings and structures in the area at different levels of severity dependent on various site-specific factors such as the intensity of ground shaking, physical vulnerability of the structures, and soil condition underneath the structures. Understanding the building losses that may be incurred from thousands of probable earthquake events, especially in rapidly-developing cities may engender an informed basis for policies leading to risk reduction and disaster mitigation. Long-term economic investors, for instance, might be able to take into account probable business interruption extent, economic impact, and quick recovery preparations in the event of foreseeable disruptive earthquakes. These may be achieved when earthquake hazard and event-based probabilistic seismic risk assessment is in place.

Iloilo City was selected as the pilot city for the first-ever city-wide event-based probabilistic seismic risk assessment in the Philippines. Being a dynamic first-class highly-urbanized city in Western Visayas, with structures and houses over 100,000, including modern high-rise buildings and centuries-old heritage buildings, and an estimated current population of almost 500,000, the city is poised for an investment influx. With the aggressive cooperation and technical collaboration of the City Government and the immediate availability of workable exposure data, this study came to fruition. A 2-volume report on the event-based probabilistic seismic risk assessment of Iloilo City was produced.

The first volume contains the technical details involved in the development and completion of the study, including full-page ground motion hazard and risk maps, and their corresponding tables.

Volume 1 of Iloilo City earthquake model: Event-based probabilistic seismic risk assessment

Publisher

Philippine Institute of Volcanology and Seismology (PHIVOLCS)

Date

2023

Contributor

• Seismological Observation and Earthquake Prediction Division
• Department of Science and Technology - Philippine Institute of Volcanology and Seismology
• (DOST - PHIVOLCS) Quezon City, Philippines
• Office of the Building Official
• City Planning and Development Office
• Office of the City Assessor
• City Disaster and Risk Reduction Management Office
• Public Information Office
• Iloilo City Government, Iloilo City, Philippines

Language

English

Type

Technical Report

Text Item Type Metadata

Citation

DOST-PHIVOLCS (2023). Iloilo City Earthquake Model: Event-Based Probabilistic Seismic Risk Assessment [Technical Report]. Quezon City: PHIVOLCS.

Access Note

Full text available