Variation Character of Earth Tide of Water Level of Artesian Well and Response Ratio of Seismicity before Strong Moderate Earthquake
Zhang Shu · Earthquake Research in Shanxi · 1999
Taking the 2 earthquakes at Datong Yanggao and a Xinzhou earthquake in Shanxi for example,the variation characters of the response ratio of the water level of artesian water level and the body strain of the earth tide of the water bearing bed,the response ratio of the seismicity in Shanxi were analyzed by the load/unload response ratio theory.The conclusion suggested that there are the high value anomalies of the response ratio1 of the water level and the background value2 of the seismicity,and the sudden change before most earthquakes.The method of the load/unload response ratio has a fairly good prediction ability for the strong moderate earthquakes in Shanxi province.