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不寻常的地震灾害提起喷水冒砂,人们往往与地震联系。的确喷水冒砂与地震有关,伴随着地面振动,水砂涌出地表,高数尺至丈余。水去砂存,地表留下高30-40厘米的砂丘、砂岭。华北平原是喷水冒砂严重区,1679年河北三河地震,“平谷地裂丈余,黑水兼砂涌出,德胜门外涌黄流,天坛旁裂出黑水”。1966年以来的邢台、河间、唐山等地震,无不发生严重的喷水冒砂,尤以唐山地震更为突出,水砂复盖耕地面积30-40％,距震中120公里的耿楼村,喷水冒砂孔1000多个。发生在地震当时的喷水冒砂,是平原区一种普遍的震害现象,而发生在其他时间的喷水冒砂,常常误当地震前兆,弄得人心惶惶。
Unusual earthquake catastrophe brought water jet sand, people are often linked with the earthquake. Indeed, water-jet sand and earthquake-related, accompanied by ground vibration, water and sand gush from the surface, high feet to Zhang Yu. Water to sand storage, leaving the surface of 30-40 cm high sand mound, sand ridge. The North China Plain is a serious area where water and sand are sprayed. In the 1679 Hebei Sanhe earthquake, “Pinggu cracked more than ten feet, black water and sand were erupting, Deshengmen surging in the Yellow River and the Temple of Heaven cracked the black water.” Since 1966, Xingtai, Hejian, Tangshan and other earthquakes, all serious water jet sand, especially the Tangshan earthquake is more prominent, water sand covers 30-40% of cultivated land, 120 km from the epicenter of Genglou village, Spray sand hole more than 1,000. The occurrence of sand blasting at the time of the earthquake was a common earthquake damage in the plains area. However, sand spraying at other times often misses the earthquake precursors and makes people panic.