In BC 1 and 780 (the second year of Zhou Youwang), Qishan, Shaanxi (34.5 N, 107.8 E) m ≥ 7 (the epicentre intensity ≥ ⅸ) "In the second year of Wang You, there was an earthquake in Sanchuan, Western Zhou Dynasty. ..... is eighteen years old, the three rivers are exhausted and Qishan collapses. "
2. June 70 BC 1 day (Renyin in the fourth year of Xuandi), Changle area in Zhucheng, Shandong Province (36.3 N, 1 19.2 E) m ≥ 7 (epicentral intensity ≥ ⅸ) "Renyin four-year earthquake, forty-nine counties in eastern Henan.
After 65438+ 10 month in 3.043 (after September of Han 'an, Shun Di, Eastern Han Dynasty), an earthquake of magnitude 7 (epicenter intensity ⅸ) occurred in the west of Gangu, Gansu (35.0 N, 104.0 E). From September to April last year, every 180 earthquake destroyed temples and injured people. "
4. 180 (autumn in the third year of Guangxu in the Eastern Han Dynasty), M7 1/2 (epicenter intensity x) in Gao Tai, west of Gansu (39.4 degrees north latitude and 99.5 degrees east longitude) "From the autumn of the third year to the spring of the following year, there were 80 Jiuquan, and the water gushed out, and the official temple houses in the city were all crowded. (Records of the Five Elements in the Later Han Dynasty)
5. 1976 Tangshan earthquake? 1At 3: 42: 54.2 on July 28th, 976, a 7.8-magnitude earthquake occurred in Tangshan City, Hebei Province, China (the epicenter latitude was 39.4 degrees, and the east longitude was 1 18.0 degrees). The earthquake, the epicenter intensity 1 1 degree, the focal depth 1 1 km, killed 242,000 people and seriously injured160,000 people. A heavy industrial city was destroyed, with a direct economic loss of10 billion yuan, making it the biggest earthquake in the world in the 20th century.
Extended data:
The cause of the earthquake:
1, 19 1 1 year, Reid proposed that when the strain energy accumulated in the earth exceeds the strength of rocks, faults will occur. After the fault is formed, the rock elastically bounces back and restores to its original state, so the accumulated energy is suddenly released, causing an earthquake. This is the so-called "elastic rebound theory"
2. American scholar bridgman put forward the "phase transition theory", that is, under a certain critical temperature and pressure, underground substances change from one crystalline state to another, and the volume suddenly changes, which leads to earthquakes.
Although the mystery of earthquake has not been completely solved, seismology has made great progress with the cross-development of physics, chemistry, paleontology, geology, mathematics, astronomy and other disciplines.
People's Network-the earliest earthquake record in China? More than 4000 years ago
People's Network-79 major earthquakes recorded in the history of China.
Baidu Encyclopedia-China Earthquake Belt