地表局部陷落是一种常见的自然现象,1972年以来,山东菏泽地区多次发生。它虽不是一种地震现象,但也会造成地表、房屋的局部破坏。所以,研究地表陷落发生的原因,了解与因喷沙冒水或地壳变形造成的地表陷落的区别,是地震宏观异常调查中常常遇到的问题。野外调查结果 1972年以来,山东省菏泽地区的东明县、菏泽县境内,先后发生六次地表陷落。造成 Local surface subsidence is a common natural phenomenon, since 1972, Heze area in Shandong many times. Although it is not an earthquake phenomenon, it can also cause partial destruction of the surface and houses. Therefore, studying the causes of surface subsidence, and understanding the difference between surface subsidence caused by sand blasting and crustal deformation are frequently encountered problems in macro-anomaly surveys. Fieldwork Findings Since 1972, six surface subsidences have occurred in Dongming County and Heze County in Heze Prefecture, Shandong Province. Cause