公元180年甘肃表氏地震考  

Textural criticism on the Biaoshi,Gansu,earthquake in 180 AD

作　　者：曹娜[1] 雷中生[1] 袁道阳[1,2] 刘兴旺[1,2] 

机构地区：[1]中国地震局兰州地震研究所,中国兰州730000 [2]中国地震局地震预测研究所兰州科技创新基地,中国兰州730000

出　　处：《地震学报》2010年第6期744-753,共10页Acta Seismologica Sinica

基　　金：中国地震局兰州地震研究所青年基金(2009259);国家自然基金(40872132)资助

摘　　要：根据史料记载,各种地震目录均将东汉灵帝光和三年秋(公元180年)表氏地震震中定在甘肃省高台县西(39.4°N,99.5°E),震中烈度Ⅹ度,震级7(1/2).本文通过对历史地震资料的重新考证和表氏新旧县城遗址的实地考察,对公元180年表氏地震的震中位置作了如下修正:震前的表氏县城位于甘肃省肃南县明花区新墩子城,也应是震中所在地,其地理位置为39.6°N、99.3°E,精度2类;震后重建的县城在今骆驼城或草沟井城.通过对史料震害的认真分析,并将本次地震与两汉时期8次6(1/2)级以上地震及高台附近地区9次地震的地震参数、震害和波及范围进行对照,最终将震中烈度修正为Ⅸ—Ⅹ度,震级修正为7级.According to historical records, all earthquake catalogs set the epicen- ter of the 180 A D Biaoshi earthquake to the west of Gaotai County （39.4°N, 99.5°E） in Gansu Province, and determined its epieentral intensity as X and its magnitude as 7~. Result of our textual critieism on historical records indicates that the epicentral location drawn from the existing earthquake catalogs is not definite and amendment should be made. Before the 180 A D earthquake, the Biaoshi town, where the earthquake epicenter should be, was located at Xind- unzi town, Minghua District of Sunan County, Gansu Province, and the geo- graphical coordinates of the epicenter should be （39. 6°N, 99. 3°E） with a location estimation accuracy of rank 2. After the earthquake, the reconstructed town was located at the present Luotuo town or Caogoujing town. Through careful analysis on historical seismic damage records and comparing the seismic parameters, damage records and affected area of the 180 A D Biaoshi earthquake with that of 8 earthquakes of M≥61/2uring the Han Dynasty and another 9 historical earthquakes occurred near the Gaotai County, we finally revised the epicentral intensity of the 180 A D Biaoshi earthquake as Ⅸ-Ⅹ , and its magnitude as 7.

关 键 词：公元180年表氏地震 表氏县城遗址 考证 

分 类 号：P316.2[天文地球—地震学]