The earthquake with the largest number of casualties in the world is1556 65438+1October 23rd, hua county, Shaanxi, with a large number of casualties, which is rare in the history of earthquakes at home and abroad. According to historical records: "Amazingly, 830,000 officers and men killed famous soldiers, and ... the unknown ones who didn't report them can't be counted." The earthquake is magnitude 8, and the intensity of the polar earthquake zone is VII degrees, with a serious damage area of 280,000 square kilometers, which is distributed in Shaanxi, Shanxi, Henan, Gansu and other provinces (regions); The seismic wave shook more than half of China, and the feeling range was as far away as Fujian, Guangdong and Guangxi. The earthquake caused such heavy casualties, the main factor is a series of surface damage caused by the earthquake. According to historical records: "In the thirty-fourth year of Jiajing, there was an earthquake in Shaanxi in December, which happened on the night of Renyin. The sound was like thunder, and the mountains moved for miles. The ground cracked and the water overflowed. Xi 'an, Fengxiang and Qingyang counties and cities were all trapped, causing hundreds of thousands of deaths. "Secondly, the earthquake disaster is caused by the dense population in the epicenter area and the poor seismic performance of houses; The earthquake happened at midnight. There was no obvious earthquake precursor before the earthquake, and people were completely unprepared. Serious secondary disasters such as floods, fires and diseases; Social security is chaotic and rumors abound; Coupled with hunger and people having nowhere to live, the earthquake caused a great disaster.
The research results of historical geography show that 1556 hua county earthquake caused the bed uplift of the Yellow River in Tongguan, Shaanxi Province, which led to the long-term flooding of the Xiaobei main stream of the Yellow River after 1570. Frequent floods have turned into ecological disasters on both sides of the strait. In the Ming Dynasty, Ronghe County, Puzhou City and Chaoyi County in Shaanxi Province were finally abandoned in this 400-year-long ecological disaster, so that people thought they were in an earthquake in Huaxian County.
Source: Xinhuanet
Xinhuanet xi65438+1October 26th (Reporter Chu Guoqiang, Liu Ling) An earthquake that happened in Huaxian County, Shaanxi Province 450 years ago shocked China and foreign countries. That earthquake killed at least 830,000 people, making it the deadliest earthquake disaster in human history.
Shaanxi Province recently held the 450th anniversary commemoration and academic seminar of Huaxian earthquake. Relevant experts believe that the reason for the heavy losses of this earthquake is not only that the earthquake occurred in the middle of the night and the earthquake area was densely populated, but also that the earthquake relief system at that time was not perfect and the people's awareness of disaster prevention and mitigation was weak, which should be taken as a warning.
Shaanxi commemorates the 450th anniversary of Huaxian earthquake.
1556 65438+1On October 23rd, an earthquake of magnitude 8.25 occurred in hua county. According to historical records, the earthquake "killed 830,000 celebrities reported by the military and civilians, and those who did not report it could not be counted", making it the most deadly earthquake disaster in history. The hardest hit area is 280,000 square kilometers, distributed in Shaanxi, Shanxi, Henan, Gansu and other provinces. The earthquake has spread to more than half of China, and the earthquake felt as far away as Fujian, Guangdong and Guangxi.
Shaanxi province is one of the areas where earthquakes are active. Since historical records, there have been more than 400 felt earthquakes and more than 60 destructive earthquakes. At present, Shaanxi has established an earthquake precursor observation system consisting of reference table, provincial regional network, local stations and mobile monitoring. The level of earthquake quick report and prediction has been continuously improved. Xi 'anke has monitored earthquakes above 1, and earthquakes above magnitude 2 can be monitored in most areas of the province, and an earthquake disaster emergency rescue team has been established.
China is located at the intersection of the two major seismic belts in the world-the Pacific Rim seismic belt and the Eurasian seismic belt, with frequent seismic activities. Chinese mainland earthquake accounts for 1/3 of the global destructive land earthquakes. According to historical records, four of the six earthquakes that killed more than 200,000 people in the world occurred in China.