【摘要】 2013年1月18日四川省白玉县发生M_S5.4地震,临震前4天左右甘肃陇南中心地震台钻孔倾斜、数字化气氡观测资料出现短临异常现象。钻孔倾斜异常形态趋势转折,持续时间1天;数字化气氡异常形态,加速下降后回升,持续时间3天。更多还原

【Abstract】 Baiyu M_S 5.4 earthquake in Sichuan Province occurs on January 18,2013.Four days before the earthquake,the data of vertical pendulum and digital radon gas at Longnan Seismic Station all showed short-term anomalies.On vertical pendulum,the trend of abnormal shape turned point in 1 day;and on digital radon gas,the abnormal shape,declines accelerate and then rise again,with 3 days duration.更多还原