jgg     2008 28 (1):  7-10    ISSN: 0412-1961  CN: 21-1139/TG PRELIMINARY RESULTS OF MICROEARTHQUAKE OBSERVATION BY TEMPORARY SEISMOSTATION NETWORKS IN TANGSHAN REGION IN 2006 Lai Xiaoling 1) ;Li Songlin 1) ;He Jiayong 2) ;and Sun Yi 3) 1)Geophysical Exploration Center, CEA, Zhengzhou 4500022)Institute of Geophysics, CEA, Beijing 1000813)Harbour Building Inc., Sinohydro Corporation , Tianjin 300461 Received: 1900-01-01  Revised: 1900-01-01  Online: null Supporting info null