求翻译：唐山大地震发生之前，在河北省北部的农村有许多怪事发生，比如井水升升降降，起起伏扶。鸡和猪都变得紧张，老鼠也跑出来，鱼往外跳。室内，水管爆裂。但是，人们没注意。是什么意思？

Before Tangshan earthquake occurred, in the North of Hebei province countryside there are many strange things happen, such as well water zigzag, the ups and downs in society. Chickens and pigs have become strained, the mouse ran out, jump out fish. Indoor, burst. However, people don't notice.