2020
DOI: 10.1177/8755293019900521
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Probabilistic seismic hazard analysis model for the Philippines

Abstract: The Philippine archipelago is tectonically complex and seismically hazardous, yet few seismic hazard assessments have provided national coverage. This article presents an updated probabilistic seismic hazard analysis for the nation. Active shallow crustal seismicity is modeled by faults and gridded point sources accounting for spatially variable occurrence rates. Subduction interfaces are modeled with faults of complex geometry. Intraslab seismicity is modeled by ruptures confined to the slab volume. Source ge… Show more

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Cited by 20 publications
(13 citation statements)
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“…We then discuss the utility of each method in PSHA. Although this contribution is focused generally on geologic and geomorphic data sets, we also include a discussion of geodetic techniques in slip rate estimation, because they are frequently combined or considered jointly with geologic data in PSHA (e.g., Bird, 2009; Bormann et al, 2016; Loveless & Meade, 2011; Oskin et al, 2007; Penarubia et al, 2019; Wesnousky et al, 2012).…”
Section: Fault Slip Rates and Seismic Hazardmentioning
confidence: 99%
“…We then discuss the utility of each method in PSHA. Although this contribution is focused generally on geologic and geomorphic data sets, we also include a discussion of geodetic techniques in slip rate estimation, because they are frequently combined or considered jointly with geologic data in PSHA (e.g., Bird, 2009; Bormann et al, 2016; Loveless & Meade, 2011; Oskin et al, 2007; Penarubia et al, 2019; Wesnousky et al, 2012).…”
Section: Fault Slip Rates and Seismic Hazardmentioning
confidence: 99%
“…Similar, smaller-scale projects by government and academic researchers contributed greatly to their respective regions (e.g. Peñarubia et al, 2020; Shyu et al, 2016; Villegas et al, 2017).…”
Section: Introductionmentioning
confidence: 99%
“…“Macgregor AfricaFaults” from Macgregor (2015). “PHIVOLCS” from Peñarubia et al (2020). “SARA” from Alvarado et al (2017).…”
Section: Introductionmentioning
confidence: 99%
“…NB: The column values that correspond to model qualities reflect the models included in version 2018.1 of the Mosaic, and that at the time of publication, some models have already undergone updates. Namely, the reference for PHL (Peñarubia et al, 2020) reflects an updated model; see detail in text. For Tier 3 models without references and the CCARA and SARA projects, please refer to the GEM Hazard Model Documentation (https://hazard.openquake.org/gem/) for a description of the modeling methods and details.…”
Section: The Criteria Used To Compile the Gem Hazard Mosaicmentioning
confidence: 99%
“…The Philippines is covered by a national PSHA model developed in a scientific collaboration between GEM and the Philippine Institute of Volcanology and Seismology (PHIVOLCS), which expanded upon previous work done by PHIVOLCS; a slightly updated version of the model included in the Mosaic is described in Pen˜arubia et al (2020). The SSC follows the approach used for the model covering South America.…”
Section: Asiamentioning
confidence: 99%