首页>
外国专利>
EARTHQUAKE SIGN OBSERVATION DEVICE AND METHOD OF EARTHQUAKE SIGN OBSERVATION AND EARTHQUAKE SIGN OBSERVATION PROGRAM
EARTHQUAKE SIGN OBSERVATION DEVICE AND METHOD OF EARTHQUAKE SIGN OBSERVATION AND EARTHQUAKE SIGN OBSERVATION PROGRAM
展开▼
机译:地震标志观测装置,地震标志观测方法及地震标志观测程序
展开▼
页面导航
摘要
著录项
相似文献
摘要
PROBLEM TO BE SOLVED: To keep a development of an active fault causing an earthquake on the basis of a seismic wave received at an observation point under surveillance, and to observe a sign of the earthquake.SOLUTION: The earthquake sign observation device is configured to comprise: data acquisition means that acquires earthquake data actually measured at a plurality of observation points; pulse calculation means that acquires information on a propagation environment in which the seismic wave is propagated from an epicenter of the earthquake to each observation point, performs a time reversal process to the seismic wave received at the plurality of observation points in consideration of the propagation environment and calculates a time reversal pulse at each observation point; line calculation means that calculates a parametric line in a lengthwise direction of a fault from an orientation distribution of a frequency spectrum of the time reversal pulse calculated by the pulse calculation means; head search means that analyzes a seismic wave received in the vicinity of the parametric line calculated by the line calculation means and searches for a parametric head; and surveillance means that keeps a development of a crack of the fault under surveillance by observing the parametric head searched by the head search means.
展开▼