Journal of Engineering, Technology and Computing Sciences Estimating Earthquake Risks: The Use of Rapid Earthquake Damage Assessment System (REDAS) in the Province of Pangasinan, Philippines P. Silvestre a,e1, R. Talvo b,e2, Z. Vargas c,e3, D. Butedd,e4, G. Domantay e.5 aFaculty of Pangasinan State University-Sta. Maria Campus, Sta. Maria, Pangasinan, Philippines, bcFaculty of Pangasinan State University-Lingayen Campus, Lingayen, Pangasinan, Philippines d President of Pangasinan State University, Lingayen, Pangasinan, Philippines e Vice President for Academic Affairs of Pangasinan State University, Lingayen, Pangasinan, Philippines
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[email protected] Abstract - The Philippines has 18 regions, and Pangasinan is the biggest province in Region I with a land area of 536,819 hectares. It has ahigh risk of earthquakes due to the Manila Trench. This study was conducted to estimate earthquake risk in the province with the use of Rapid Earthquake Damage Assessment System (REDAS) software. There were three barangays from Binmaley, one of the 44 towns in the province, where actual building survey was taken to represent residential, commercial and mixed commercial and residential sites which were used in creating the Pangasinandatabase for this study. Estimation of earthquake risk using REDAS was based on the 1796 historical earthquake event which has a magnitude of 6.9 and a depth of 35 km. Results show that the total estimated floor area damages in square meters are 5,902,337 and 272,064 for totaldisaster with no collapse and fulldestruction with collapse. Based on number of buildings, the total estimated complete with no collapse and complete with collapse damages are 115,694 and 5,315, respectively.