2003-08-012024-05-18https://scholars.lib.ntu.edu.tw/handle/123456789/711328摘要：良好的地震定位為多數地震學研究之先決條件，地震定位之精確度決定於資料的品質、觀測站的空間分布、P波及S波的地下速度構造和地震定位方法。台灣地區位於菲律賓海板塊與歐亞大陸板塊交相隱沒之地帶，地下構造十分複雜。因為複雜及未被詳細解析的地下構造，使得例行地震定位精確度一直無法，提昇尤其是淺源地震。本研究希望藉由台灣地區高密度強地動觀測網所提供的S-P時間差及三維定位方法，將東部地區淺源地震重新定位及求取震源機制解。結合兩者資料探討其構造上之含意。<br> Abstract: The success of most seismological studies relies on the accuracy of earthquake locations. The accuracy of the hypocenter locations is controlled by several factors, including the network geometry, available phases, arrival time reading accuracy, and knowledge of the crustal structure. Taiwan is located on the western Circum-Pacific seismic belt. The Philippine Sea plate subducts northward under the Eurasia plate along the Ryukyu trench. The Eurasia plate subducts eastward under the Philippine Se地震學地震定位地殼構造seismologyearthquake locationfocal mechanismcrustal structure