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20 0 2 0 7 2 3在江苏和山东交界区的黄海海域发生了华东地区自 1 997 0 7 2 8黄海Ｍ5 .1地震以来最大的地震。根据本省 2 0个地震台的测震资料 ,得到该地震三要素如下 :发震时刻 :2 0 0 2 0 7 2 3Ｔ 2 0∶47∶5 9.7震中位置 :3 5°3 9′Ｎ ,1 2 2°1 3′Ｅ ,精度Ⅱ类。震级
20 0 2 0 7 2 3 The largest earthquake in East China since the M99.1 earthquake of the Yellow Sea in 1997 occurred in the Yellow Sea near the junction of Jiangsu and Shandong. According to the seismographic data of 20 seismostats in our province, we get the following three elements of the earthquake: Seismological time: 2 0 0 2 0 7 2 3T 2 0:47:5 9.7 Epicenter location: 3 5 ° 3 9’N, 1 2 2 ° 1 3’E, accuracy class Ⅱ. Magnitude