【摘要】 利用CAP方法反演2010年4月4日大同—阳高4.6地震震源机制解,结果表明:此次地震为正断兼有斜滑活动,认为节面Ⅱ的走向、倾向及正断走滑特性与震中附近的六楞山山前断裂吻合,其为发震断裂的可能性较大。更多还原

【Abstract】 Focal mechanism solution of the Apr.4,2010 Datong-Yanggao earthquake of M 4.6 is inverted by the method of Cap.M_w = 4.5,nodal plane is 89°,39° and —56° for strike,dip and rake angles,respectively.The other nodal plane is 228°,58°,—114°.The estimated foca!depth is about 10 km,for normal with oblique slippery activity.Combined long axis directior of plane of extract position for sequence and fault of the old earthquake zone of the DatongYanggao earthquake of M 6.1,it is considered that the strike,dip and normal with strikeslip characteristic of the nodal plane TJ inosculate the Liulengshan fault near the epicenter,which is probably the fault generating earthquake.更多还原