Were there any signs before the Tangshan earthquake? If so, what were the signs?

At 3: 42 am on July 28th, 1976, because it was night, many people didn't know it, causing more casualties. The earthquake caused a sensation all over the country! An earthquake measuring 7.8 on the Richter scale occurred in Fengnan District, Tangshan City, Hebei Province, China. This time, the feeling range reached 14 provinces, municipalities and autonomous regions, among which Beijing and Tianjin were seriously affected.

The whole city of Tangshan was razed to the ground in an instant, and the city's transportation, communication, water supply and power supply were interrupted. There was no small foreshock in the Tangshan earthquake, and it happened in the early morning when people were asleep, which made most people unprepared, resulting in 242,769 deaths and 435,556 injuries.

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investigation and research

On the third day after the downfall of the Gang of Four, 197618 October, Hua Guofeng instructed: "Comrade Deng Kui, a politician in Sun Jian, we must find out the reasons why the Tangshan earthquake was not predicted."

According to General Liu Huaqing's recollection, after the investigation by the special team of Chinese Academy of Sciences, the investigation team and the State Seismological Bureau jointly put forward a report on the failure to predict the Tangshan earthquake on February 25th, 977. The conclusion of the report is: "The failure to predict the Tangshan earthquake is the evil result of the interference and destruction of the counter-revolutionary line of the Gang of Four."

The report reads: In July, the leadership of the Seismological Bureau did not study an earthquake. In early July, 6 earthquake stations and 8 mass monitoring stations put forward different degrees of pre-earthquake warning. On July 26th, the Beijing Earthquake Team was dispatched urgently. After consulting with the comrades in the analysis and prediction room, it is considered that the omen before the earthquake is serious and it is required to report to the bureau leaders.

On the morning of July 27th, the deputy director of the Seismological Bureau and the head of the Beijing-Tianjin-Tangshan-Bohai-Zhangjiakou Regional Cooperation Group said impatiently when listening to the report: "There are many things in the courtyard at present, so let's have a meeting next week!"

Liu Huaqing wrote in his memoirs: "Earthquakes are natural disasters. Obviously, man-made disasters have aggravated natural disasters. " "This natural disaster also made people see the root of man-made disasters."

Baidu Encyclopedia-Tangshan Earthquake