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研究了１９９３年６月２６日和１９９４年４月２６日相继在太原和灵石发生的Ｍｓ４．３级和Ｍｓ４．４级地震前后的重力场变化。结果表明，距震中越近，重力点值变化越大；震前重力场呈下降变化，震后短时间内仍维持下降，尔后，重力场逐渐回升。导致重力场变化的原因，在地质上表现为断层蠕动；而在深部构造的脆弱部位，水平梯度大，温差热应力高，差异活动明显，是推动断层蠕动，促进重力场变化和地震孕育发生的重要力源之一
The gravitational field changes before and after the Ms4.3 and Ms4.4 earthquakes occurred successively in Taiyuan and Lingshi on June 26, 1993 and April 26, 1994 were studied. The results show that the closer the distance to the epicenter, the greater the change of the gravity point value; the gravitational field shows a decreasing change before the earthquake and the descending time remains shortly after the earthquake, and then the gravitational field gradually rises. The cause of the change of gravity field is geologically manifested as fault peristalsis. In the weak parts of deep structure, the horizontal gradient is large, the thermal stress of temperature difference is high, and the differential activity is obvious, which is to promote the fault creep, promote the change of gravitational field and earthquakes. One of the major sources of force