地震的多样表现是一个普遍存在的事实,不仅岛孤地壳俯冲带上的地震与大陆区地震的表现有所不同,大陆内部地震的表现彼此也有许多差异。中国大陆区自1966年邢台地震以来,接连发生十余次7级以上强震,它们各自的表现就有许多相同与不同之处。表1、2列出了它们一部分明显的表现。从中可以看出,有的表现了某些显而易见的临震前 The diverse performance of earthquakes is a ubiquitous fact. Not only are the earthquakes in the island solitary crust subducted with those in the mainland, but there are also many differences in the performance of the earthquakes in the mainland. Since the Xingtai earthquake of 1966 in Mainland China, more than ten strong earthquakes of magnitude 7 or above have occurred in succession, and their respective performances have many similarities and differences. Table 1 shows some of their obvious performance. It can be seen that some of the performance of some obvious before the earthquake