Investigation of Low-Frequency Characteristics of EarthquakeSources Using Broadband Seismic Waves

利用宽带地震波研究震源低频特性

• 批准号: 9219922
• 负责人: Jiajun Zhang
• 金额: $ 9.12万
• 依托单位: University of California-Santa Cruz
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 1993
• 资助国家: 美国
• 起止时间: 1993-03-01 至 1996-02-29
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9219922&HistoricalAwards=false
• 关键词: Investigation; Low; Frequency; Characteristics; EarthquakeSources

This research is to apply high resolution seismic analysis procedures to resolve possible slow coseismic slip in the rupture of several recent large earthquakes, emphasizing events along the Pacific Coast of North and South America. The objective will be to understand the nature of deep fault properties, and the role of quasi-static strain changes and creep or viscous flow in causing slow cosseismic slip and aseismic slip before and after large earthquakes. Techniques used for study have been developed under previous grants for simultaneous analysis of the broadband spectrum of seismic radiation. This research is a component of the National Earthquake Hazard Reduction Program.

这项研究旨在应用高分辨率地震分析程序来解决最近几次大地震破裂中可能存在的慢同震滑动，重点关注北美和南美太平洋沿岸的事件。 目的是了解深断层性质的本质，以及准静态应变变化和蠕变或粘性流在大地震前后引起缓慢同震滑移和抗震滑移中的作用。 用于研究的技术是在先前的资助下开发的，用于同步分析地震辐射的宽带频谱。 这项研究是国家地震减灾计划的一部分。