Analysis of Digital Seismic Data from the Sumatran Fault and Toba Caldera

苏门答腊断层和多巴火山口数字地震数据分析

• 批准号: 9315055
• 负责人: Robert McCaffrey
• 金额: $ 5.21万
• 依托单位: Rensselaer Polytechnic Institute
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 1994
• 资助国家: 美国
• 起止时间: 1994-04-15 至 1996-09-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9315055&HistoricalAwards=false
• 关键词: Analysis; Digital; Seismic; Data; Sumatran

9315055 McCaffrey This research is to continue seismological investigations of Sumatra through analysis of data from a digital seismograph network that has been operating around the Sumatra fault and Toba caldera in northern Sumatra since October, 1990. The maximum depth and depth distribution of seismic failure on the Sumatra fault, the relation of the earthquakes and their fault plane solutions to geologic structures, the seismic velocity structure and attenuation beneath the fault and Toba caldera, and the relationship of the subducted slab and a possible tear within it to surface tectonics will be studied. The seismic network operates within a GPS geodetic network operated by Rensselaer and Scripps and provides the opportunity to study the spatial and temporal relations between seismic activity and geodetically measured strain. The work is being done in cooperation with the Indonesian Meteorological and Geophysical Agency (Jakarta) who operate the seismographic networks in Indonesia. This research is a component of the National Earthquake Hazard Reduction Program. ***

小行星9315055 这项研究是通过分析自1990年10月以来在苏门答腊断层和北方多巴火山口周围运行的数字地震仪网络的数据，继续对苏门答腊进行地震调查。 将研究苏门答腊断层地震破坏的最大深度和深度分布、地震及其断层面解与地质结构的关系、断层和多巴破火山口下的地震速度结构和衰减、俯冲板块和板块内可能的撕裂与地表构造的关系。 该地震网络在Rensselaer和Scripps操作的全球定位系统大地测量网络内运行，并提供了研究地震活动与大地测量应变之间的空间和时间关系的机会。 这项工作是与印度尼西亚气象和地球物理局（雅加达）合作进行的，后者负责管理印度尼西亚的地震网络。 这项研究是国家地震减灾计划的一个组成部分。 ***