The new method for determining ground-motion parameters in the Indonesian Earthquake Resistant Building Code SNI （Indonesia National Standard） 03-1726-2012 has significant changes than the previous code. The maps of...The new method for determining ground-motion parameters in the Indonesian Earthquake Resistant Building Code SNI （Indonesia National Standard） 03-1726-2012 has significant changes than the previous code. The maps of mean and modal of magnitude and distance presented here are intended to convey information about the distribution ofprobabilistic seismic sources and to provide prescriptions or suggestions for seismic sources to use in developing artificial ground motion in building design or retrofit projects. This paper presents deaggregation of Indonesia Seismic Hazard Map 2010 for Sumatra. Deaggregation for 0.2-s and 1.0-s pseudo SA （spectral acceleration） is performed for 10% PE （probability of exceedance） in 50 years （475-year mean return period） and 2% PE in 50 years （2,475-year mean return period）. The information of deaggregation analysis can and perhaps should be considered in a complex seismic-resistant design decision-making environment.展开更多
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 geog...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.展开更多
文摘The new method for determining ground-motion parameters in the Indonesian Earthquake Resistant Building Code SNI （Indonesia National Standard） 03-1726-2012 has significant changes than the previous code. The maps of mean and modal of magnitude and distance presented here are intended to convey information about the distribution ofprobabilistic seismic sources and to provide prescriptions or suggestions for seismic sources to use in developing artificial ground motion in building design or retrofit projects. This paper presents deaggregation of Indonesia Seismic Hazard Map 2010 for Sumatra. Deaggregation for 0.2-s and 1.0-s pseudo SA （spectral acceleration） is performed for 10% PE （probability of exceedance） in 50 years （475-year mean return period） and 2% PE in 50 years （2,475-year mean return period）. The information of deaggregation analysis can and perhaps should be considered in a complex seismic-resistant design decision-making environment.
文摘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.
