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1971年3月23日、24日新疆乌什县东北约30公里处接连发生M_s=6.0、M_(?)=6.1级两个地震。震前,离震中90公里的阿克苏地电台根据自然电位异常对这次地震作了某种程度的预报。为了监视震情的发展,同年四月初我们在乌什县九眼泉台增设了自然电流观测。九眼泉台位于乌什城区西北燕子山北麓的九眼泉公园内。该台布设了东西、南北两个测道。南北道大致垂直泉眼走向,东西道大致平行泉眼走向。两道极距均为100米。东、西、南三块极板埋在破碎的基岩附近,北极板埋在颗粒均匀的砂、砂质粘土中。极板为化学性能较
On March 23 and 24, 1971, M_s = 6.0 and M_ (?) = 6.1 earthquakes happened one after another about 30 km northeast of Wushi County, Xinjiang. Before the quake, the Aksu Earth Station 90 km from the epicenter made a certain degree of prediction of the earthquake on the basis of the natural potential anomaly. In order to monitor the development of earthquake conditions, in early April of the same year, we added a natural current observation in Qujingu, Wushi County, Wushi County. Jiuyanquantai is located in Wushi City Northwest Swallow Mountain Jiuquanquan Park. The table cloth thing, north and south two track. North and south road roughly vertical spring direction, east-west road roughly parallel to the spring. Two polar distance is 100 meters. Three plates east, west and south are buried near the crushed bedrock, and the north plate is buried in a uniform sand and sandy clay. Plate for chemical performance