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Title: Seismicity studies at Moluccas area based on the result of hypocenter relocation using HypoDD

The precise hypocenter was determined location using double difference method around subduction zone in Moluccas area eastern part of Indonesia. The initial hypocenter location from MCGA data catalogue of 1,945 earthquake events. Basically the principle of double-difference algorithm assumes if the distance between two earthquake hypocenter distribution is very small compared to the distance between the station to the earthquake source, the ray path can be considered close to both earthquakes. The results show the initial earthquakes with a certain depth (fix depth 10 km) relocated and can be interpreted more reliable in term of seismicity and geological setting. The relocation of the intra slab earthquakes beneath Banda Arc are also clearly observed down to depth of about 400 km. The precise relocated hypocenter will give invaluable seismicity information for other seismological and tectonic studies especially for seismic hazard analysis in this region.
Authors:
 [1] ;  [2] ; ;  [3]
  1. Student of Geophysical Engineering Study Program, Institute of Technology Bandung (Indonesia)
  2. (MCGA), Jakarta (Indonesia)
  3. Global Geophysical Research Group, Faculty of Mining and Petroleum Engineering, ITB (Indonesia)
Publication Date:
OSTI Identifier:
22391582
Resource Type:
Journal Article
Resource Relation:
Journal Name: AIP Conference Proceedings; Journal Volume: 1658; Journal Issue: 1; Conference: ISEDM 2014: 4. International Sympsoium on Earthquake and Disaster Mitigation 2014, Bandung (Indonesia), 11-12 Nov 2014; Other Information: (c) 2015 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
58 GEOSCIENCES; 71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; ALGORITHMS; CATALOGS; COMPARATIVE EVALUATIONS; DEPTH; DISTANCE; EARTHQUAKES; GEOPHYSICS; HAZARDS; HYPOCENTERS; INDONESIA; SEISMICITY; SEISMOLOGY; SLABS; SUBDUCTION ZONES