North China seismic belt is divided into four seismic belts.
1, Tancheng-Yingkou seismic belt.
Including most or part of Tieling, Hebei, Shandong, Jiangsu and other provinces from Suqian to Liaoning. It is a strong seismic activity zone in eastern Chinese mainland.
2. North China Plain seismic belt.
The southern boundary is located on Xinxiang-Bengbu line, the northern boundary is located on the south side of Yanshan Mountain, the western boundary is located on the east side of Taihang Mountain, and the eastern boundary is located on the west edge of Xialiaohe-Liaodongwan Depression, which is an earthquake zone.
3. Wei Fen seismic belt.
It starts from Xuanhua-Huai 'an Basin and Huailai-Yanqing Basin in Hebei Province in the north, passes Yangyuan Basin, Yuxian Basin, Datong Basin, Ding Xin Basin, Lingqiu Basin, Taiyuan Basin, Linfen Basin and Yuncheng Basin, and reaches Weihe Basin in the south. It is another strong seismic activity zone in eastern China.
4. Yinchuan-Hetao seismic belt.
Yinchuan, Uda, Dengkou and some areas west of Hohhot are located in the west and north of Hetao area. 1739 Yinchuan M8.0 earthquake in Ningxia occurred in this area.
Extended data
Chengde City is about 80 kilometers away from Zhangjiakou-Penglai seismic tectonic belt.
The level of seismic activity in Chengde and its surrounding areas is very low.
The fortification intensity of Chengde city and most surrounding areas is VI. Chengde area is located in the north of Hebei Province, and belongs to Yanshan uplift belt in geological structure. It is adjacent to the small earthquake-intensive area in Yanshan seismic belt in the south and the earthquake danger area in western Liaoning in the east.
In other words, the level of seismic activity in the surrounding areas of Chengde is not low, and the fortification intensity in the urban area and most surrounding areas is VI, but it has never been affected by the earthquake.
Chengde City is located at the included angle between two seismic zones. Although Kuancheng and Xinglong counties are close to Tangshan, they also perfectly avoid the volcanic earthquake belt around Bohai Sea.
Baidu Encyclopedia-China Earthquake Belt