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An earthquake catalogue for El Salvador and Neighboring Central American Countries （1528-2009） and Its Implication in the Seismic Hazard Assessment

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Journal of Civil Engineering and Architecture 2013年第8期7卷 1018-1045页

作者： Walter Salazar Lyndon Brown Walter Hemandez Jose Guerra Seismic Research Centre The University of the West Indies (UWI) St. Augustine Trinidad and Tobago earthquake Unit The University of the West Indies (UWI) Mona Kingston Jamaica Geological Survey~General Directorate of Environmental Observatory (DGOA) San Salvador El Salvador Oficina de Planificacien del Area Metropolitana de San Salvador (OPAMSS) San Salvador El Salvador

Merging all available databases, a comprehensive and updated earthquake catalogue for El Salvador and surrounding areas has been compiled, containing a total of 2,584 events for the period 1528-2009, covering the geographic window delimited by the coordinates 11.0°-16.5° N and 85.5°-92.0° W, focal depths of 0.0 to 304 km, and the moment magnitudes in the interval 5.0 〈 Mw 〈 8.1. Events in the catalogue are distributed into six seismogenic sources taking into consideration the tectonic regime affecting E1 Salvador, the interplay and complexities between shallow crustal, intraplate and interface subduction seismicity has been thoroughly investigated, primarily with the aim of developing detail criteria to delimit the seismogenic sources in order to perform a consistent seismic hazard assessment. A uniform hazard spectrum for San Salvador and seismic hazard maps and their uncertainty have been calculated for the horizontal component of ground motion for rock site conditions using zone and zone free methods. The references cited in the article constitute a comprehensive list of sources of information on the tectonics and seismicity of El Salvador and neighboring Central American countries.

关键词： earthquake catalogue tectonics seismogenic sources Gutenberg-Richter relationships seismic hazard.

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GIS-based study of the evolution of the IGN's strong motion network of mainland Spain and the balearics

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Geodesy and Geodynamics 2021年第4期12卷 279-287页

作者： Jose-Lazaro Amaro-Mellado Daniel Anton Juan-Manuel Alcalde Instituto Geografico Nacional Servicio Regional en AndaluciaSeville 41013Spain Departamento de Ingenierfa Grafica Universidad de SevillaSeville 41092Spain Research Group TEP970:Innovacion Tecnoldgica Sistemas de Modelado 3D y Diagnosis Energetica en Patrimonio y Edificacidn'Departamento de Expresion Grafica e Ingenieria en la EdificacionEscuela Tecnica Superior de Ingenieria de EdificacionUniversidad de Sevilla4A Reina Mercedes AvenueSeville 41012Spain The Creative and Virtual Technologies Research Laboratory School of ArchitectureDesign and the Built EnvironmentNottingham Trent University50 Shakespeare StreetNottingham NG14FQUK Escuela Superior de Ingenieria y Tecnologia Universidad Intemacional de La Rioja737 La Paz AvenueLogrono 26006Spain Instituto Geografico Nacional Red Sismica NacionalMadrid 28003Spain

In some countries with seismicity,an adequate detection network is essential to assess seismic *** Instituto Geografico Nacional(National Geographic Institute/IGN)of Spain manages a strong motion network distributed throughout the whole country and an earthquake detection network composed of velocity *** paper aims at studying the development of the strong motion network of the Spanish National Seismic Network(focusing on mainland Spain and the Balearics)in the last three decades.A Geographic Information System(GIS)has been implemented to integrate the attributes from the IGN’s database concerning the earthquake catalogue,seismograph and accelerometer networks,which enabled to analyse the data and map the distribution of detection equipments in the *** irregularly distributed Spanish strong motion network was greatly expanded from 1990 to *** the past decade,it developed at a slower rate,but more modern technology was implemented.

关键词： Strong motion Accelerometer network Spanish national seismic network earthquake catalogue GIS

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Probabilistic Seismic Hazard Assessment for Jamaica

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Journal of Civil Engineering and Architecture 2013年第9期7卷 1118-1140页

作者： Walter Salazar Lyndon Brown Garth Mannette Seismic Research Centre The University of the West Indies (UWI) St. Augustine Trinidad and Tobago earthquake Unit The University of the West Indies (UWI) Mona Kingston Jamaica

A probabilistic seismic hazard analysis was performed to generate seismic hazard maps for Jamaica. The analysis was then conducted using a standard logic-tree approach that allowed systematically taking into account the model-based （i.e., epistemic） uncertainty and its influence on the computed ground motion parameters. Hazard computations have been performed using a grid of sites with a space of 0.05 degrees. Two different computation methodologies have been adopted： the standard approach based on the definition of appropriate seismogenic sources and the zone-free approach, which overcomes the ambiguities related with the definition of the seismic sources solely reflecting the characteristics of the earthquake catalogue. A comprehensive and updated earthquake catalogue for Jamaica has been compiled for the years 1551-2010 and new empirical relationships amongst magnitudes Mze-Ms and Mw-mb have been developed for the region. Uniform hazard spectra and their uncertainty have been calculated for the horizontal component of ground motion for rock site conditions and five return periods （95, 475, 975, 2,475 and 4,975 years） and spectral accelerations for 34 structural periods ranging from 0 to 3 s, and 5% of critical damping. The spectral accelerations have been calculated to allow the definition of seismic hazard in Jamaica according to the International Building Code 2012. The disaggregation analysis for Kingston Metropolitan Area suggests that the magnitude-distance pair that contributes most to the hazard corresponds to events with M 7.8 and M 7.0 in the Enriquillo Plantain Garden Fault and the Jamaican Faults at a distance of 28 km and 18 km for short and long period structures respectively corresponding to 2,475 years return period. However, for long period structures, a substantial contribution is found for a M 8.2 at a distance of 198 km in the Oriente Fault Zone.

关键词： earthquake catalogue GMPE's (ground motion prediction equations) seismic hazard response spectrum disaggregationanalysis.

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Principles and Methods of Determining Epicenter Reference Place Name

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earthquake Research in China 2010年第4期24卷 491-500页

作者： He Rui Feng Yijun Xiao Chengye Institute of Geophysics CEA Beijing 100081 China

Determining an epicenter reference place name (herein after to be referred as "DERPN") is a basic task,but is very important for standardizing the compilation of earthquake ***,there has been little studies on *** pap... 详细信息

关键词： earthquake catalogue Epicenter reference place name Standardization

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