2009-05-122024-05-17https://scholars.lib.ntu.edu.tw/handle/123456789/681509摘要：1999 年集集地震後政府投入大量的資源在地震科學上的研究，建立全島的全球衛星定位系統連續觀測網和部分的井下應變儀觀測站。本計畫的主要執行重點為：（1）分析連續50 個連續GPS 測站及12個井下應變儀之時間序列；（2）藉由長期觀測推估研究地區GPS 速度場變化並進一步瞭解應變率變化情形；（3）井下應變儀和連續GPS 觀測記錄比較；（4）配合連續GPS、地球化學監測站和井下應變儀等多樣觀測資訊瞭解地震發生前的異常現象，以評估斷層活動潛能；(5) 利用對區域大地構造、活動斷層分佈、斷層帶特性、斷層破裂的動力學、地震活動行為之理解，評估車籠埔斷層、瑞穗斷層、山腳斷層、小崗山斷層、新城斷層、木屐寮斷層、六甲斷層和池上斷層的活動潛勢，以瞭解斷層活動潛勢分析在台灣實行的可行性 (6) 維護井下應變儀資料庫並提升資料庫安全性。斷層活動潛勢分析方面則是藉助國外發展地震機率模型經驗，評估及發展可靠度高的台灣斷層活動潛勢分析模型。因此本計畫的執行，旨在結合GPS 測量與井下應變儀觀測，結合地質構造、地震活動觀測、數值模擬和 斷層活動度的研究，並結合地球化學觀測資料，期能提供近斷層活動性及其潛勢、孕震過程、發震構 造、震源力學和可能斷層活動潛能的重要資訊。<br> Abstract: After 1999 Chi-Chi earthquake, the government devotes a great deal of resource to establish an island-wide continuous recording GPS network and some local networks of borehole strainmeters. The main goals of this project are to: (1) explore the anomalous crustal deformation phenomena by analyzing the time series from continuous GPS and borehole strainmeter stations; (2) determine the accumulation of current crustal strain from GPS velocity filed; (3) compare the measurements based GPS and strainmeter data (4) study the anomalous phenomena from GPS, geochemistry data and strainmeter signal before large earthquake to assess the potential activity of crustal faults; (5) develop a comprehensive, physics-based understanding of potential activity of the major faults such as Chelungpu fault, Juisui fault, Sanchiao fault, Hsiaokangshan fault, Hsincheng fault, Muchiliao fault, Liuchia fault and Chihshang faults in Taiwan and evaluate techniques for assessing models of potential activity of crustal faults; (6) build and maintain the database for access borehole strainmeter records and set up database security. The goal of this proposal is to gather new information about active fault behavior in Taiwan using the new-installed continuous GPS, geochemistry monitoring and strainmeter stations. Along with multidisciplinary studies of plate-boundary tectonics, active fault systems, fault-zone processes, dynamics of fault ruptures, seismic activities, and analysis for potential activity of crustal faults, we aim at integrating these information into a comprehensive understanding of potential activity of crustal faults.全球衛星定位系統連續觀測站時間序列井下應變儀斷層活動潛勢分析GPSCGPSTime seriesBorehole StrainmeterAnalysis in Potential activity of faults斷層活動性觀測研究第二階段-斷層監測與潛勢分析研究(1/4)