Differences

This shows you the differences between two versions of the page.

Link to this comparison view

resisii2010 [2015/01/07 11:32] (current)
Line 1: Line 1:
 +====== Central America: Resis II (2010) ======
  
 +The Resis II PSHA model has been developed in the framework of a collaboration between the Norway Cooperation Agency (NORAD), Spain and representatives of several Central American countries: Costa Rica, Guatemala, Honduras, Nicaragua, El Salvador, Panamá.
 + 
 +===== Data =====
 +
 +==== Earthquake catalogues ====
 +
 +The catalogs used to create the Resis II PSHA input model are the following:
 +
 +  - [[hazard_models:​resisii2010#​bibliography|Rojas et al. (1993) ]]
 +  - Information gathered in the CASC (Centro de Sismológico de America central) database
 +  - National catalogs of Guatemala, El Salvador, Honduras, Nicaragua, Costa Rica, and Panamá. ​
 +
 +The final catalog contains 29,918 events with Mw > 3.5 (see [[hazard_models:​resisii2010#​bibliography|Benito et al. (2012) page 506]]). ​
 + 
 +==== Active fault database ====
 +
 +The Resis II model doesn'​t contain fault sources. According to [[hazard_models:​resisii2010#​bibliography|Benito et al. (2012)]] and [[hazard_models:​resisii2010#​bibliography|Benito and Torres (2009)]] no database has been crated in the framework of this project.  ​
 +
 +==== Ground motion prediction equations ====
 +
 +Participants to the Resis II project created a database of strong ground motion recordings. This database contains recordings with the following characteristics:​
 +  - Moment magnitude between 4.0 and 7.7 and 2000 < = year < = 2007
 +  - 1 < = Repi < = 480km
 +  - 1 < = Hypocentral depth < = 200km
 +
 +The ground motion prediction equations used for the calculation of hazard ​
 +
 +===== PSHA input model building methodology =====
 +
 +==== Catalogue compilation ====
 +
 +The catalogue has been compiled by merging the information included in a large set of local catalogues. No specific description is provided about the criteria adopted for merging the catalogues.
 +
 +==== Catalogue processing ====
 +
 +  * //​Declustering//:​ details about the methodology adopted aren't available in the documentation although [[hazard_models:​resisii2010#​bibliography|Benito et al. (2012, page 506)]] write that the filtering of aftershocks and foreshocks was completed after the analysis of completeness.
 +  * //​Completeness//​ analysis: performed using the Stepp (1973) method.
 +  * //​Calculation of activity rates//:
 +
 +==== Modelling of distributed seismicity ====
 +
 +  * Area sources
 +  * Smoothing
 +
 +==== Faults ====
 +
 +  * Methodology for activity rate definition
 +
 +==== Ground Motion Prediction Equations ====
 +
 +=== Selection Criteria ===
 +
 +=== Models ===
 +The selected models for the subduction intraslab sources are the following (see Figure 6 in [[hazard_models:​resisii2010#​bibliography|Benito et al., 2012]]):
 +
 +  * [[https://​github.com/​gem/​oq-hazardlib/​blob/​master/​openquake/​hazardlib/​gsim/​youngs_1997.py | Youngs et al. (1997) ]]
 +  * [[https://​github.com/​gem/​oq-hazardlib/​blob/​master/​openquake/​hazardlib/​gsim/​zhao_2006.py | Zhao et al. (2006) ]]
 +
 +The selected models for the subduction interface sources are the following:
 +
 +  *  [[https://​github.com/​gem/​oq-hazardlib/​blob/​master/​openquake/​hazardlib/​gsim/​youngs_1997.py | Youngs et al. (1997) ]]
 +
 +The selected models for the crustal sources are the following:
 +
 +  * Climent et al. (1994)
 +  * [[https://​github.com/​gem/​oq-hazardlib/​blob/​master/​openquake/​hazardlib/​gsim/​zhao_2006.py | Zhao et al. (2006) ]]
 +==== Modelling epistemic uncertainties ====
 +
 +===== PSHA Calculation =====
 +
 +  * Original software adopted ​
 + 
 +===== Bibliography =====
 +
 +  * Benito, M. B. and Y. Torres (eds.) (2009). Amenaza sísmica en América Central. Entinema, 371 pp., ISBN 978-84-8319-474-4
 +  * Benito, M. B. , C. Lindholm, E. Camacho, A. Climent, G. Marroquín,​ E. Molina, W. Rojas, J. J. Escobar, E. Talavera, G. E. Alvarado, Y. Torres (2012). A New Evaluation of Seismic Hazard for the Central America Region. Bull. Seism. Soc. Am., 102(2): 504–523, doi: 10.1785/​0120110015
 +  * Rojas, W., H. Bungum, C. Lindholm (1993). Historical and recent earth- quakes in Central America, Rev. Geol. Amer. Central 16, 5–21 [[http://​revistas.ucr.ac.cr/​index.php/​geologica/​article/​download/​13242/​12517 | pdf]]
  • resisii2010.txt
  • Last modified: 2015/01/07 11:32
  • (external edit)