【摘要】 2004年10月14日、11月21日和11月29日,陕西省地震台网记录到在陕西省榆林地区的神木县和府谷县相继发生了ML4.2、ML3.2和ML3.4级地震。经陕西省地震局榆林地震考察组落实,三次地震都是典型的煤炭采空区塌陷引起的矿震事件。2004年10月14日的ML4.2级矿震也是我国目前记录到的煤炭采空区塌陷引起的最大矿震。更多还原

【Abstract】 <Abstrcat> Shaanxi Seismic Network recorded 3 earthquakes of M_L 4.2,M_L3.2 and M_L 3.4 that took place in Shenmu and Fugu county of Shaanxi province respectively on October 14, November 21 and 29, 2004. The field investigation into these earthquakes in Yulin conducted by a group of the Administration of Shaanxi Province shows that 3 earthquakes are all typical mine quakes induced by collapse in mined-out area. The M_L 4.2 mine quake on October 14, 2004 is the largest recorded mine quake in China by far.更多还原