In what year was the Tangshan earthquake caused?

The Tangshan earthquake was 1976. Tangshan belongs to the North China seismic belt, which is caused by the dislocation and fracture of rock strata in the deep underground.

The seismic activity in China is mainly distributed in 23 seismic zones in five regions.

These five regions are:

① Taiwan Province Province and its adjacent waters;

(2) Southwest China, mainly Tibet, western Sichuan and central and western Yunnan;

(3) Northwest China, mainly distributed in Hexi Corridor of Gansu, Qinghai and Ningxia and the foothills of Tianshan Mountain;

④ North China, mainly located on both sides of Taihang Mountain, Wei Fen Valley, Yinshan-Yanshan area, Luzhong and Bohai Bay;

⑤ Southeast coastal areas such as Guangdong and Fujian.

Taiwan Province province in China is located in the Pacific Rim seismic belt, Tibet, Xinjiang, Yunnan, Sichuan and Qinghai provinces are located in the Himalayan-Mediterranean seismic belt, and other provinces are located in related seismic belts.

Because the earth is constantly moving and changing, it gradually accumulates huge energy, causing sudden rupture of rock strata or dislocation of original faults in some fragile areas of the crust. This is an earthquake.