When did the Tangshan earthquake happen?

1976 At 3: 42 on July 28th, an earthquake occurred in Tangshan City, Hebei Province, China. The magnitude is 7.8, and the epicenter intensity is VII. On that day 18: 43, an earthquake of magnitude 7. 1 occurred in Luanxian County, more than 40 kilometers away from Tangshan, with the epicenter intensity of 7 degrees. The earthquake happened in an industrial city with dense population and serious losses. Most of the buildings in Tangshan city were basically razed to the ground or seriously damaged. The rails twisted into a snake shape, and a large number of cracks appeared on the surface, as well as water spraying, sand falling and collapse, accompanied by the phenomenon of light before the earthquake. 242,769 people were killed and 16485 1 people were injured. Nearby Tianjin has also been damaged by Ⅶ ~ Ⅶ. The affected areas cover Liaoning, Shanxi, Henan, Shandong, Inner Mongolia and other 14 provinces, cities and autonomous regions, with a radius of about 250 kilometers. The study of focal physics shows that the process of focal dislocation of this earthquake is complicated.

The strong earthquake caused traffic interruption, communication paralysis, water and power cuts in the whole city, and emergency repair of lifeline projects such as communication, water supply, power supply and traffic recovery is one of the most urgent tasks of Tangshan disaster relief. According to this, the central government quickly arranged counterpart support tasks for various professional systems. Posts and telecommunications, railways, transportation, electric power, municipal construction and other departments immediately acted to ensure the smooth recovery and reconstruction of the above-mentioned system projects. The earthquake was in midsummer, the weather was hot, the rain continued, and the human and animal corpses rotted rapidly, and the epidemic situation was very severe. In epidemic prevention, comprehensive measures have been taken, such as surprise treatment, controlling the source of infection, improving the environment, eliminating pathogens, vaccinating and improving the resistance of personnel. The method of combining military and civilian, combining special groups and combining local and foreign countries was adopted to eliminate the epidemic before it happened, creating a miracle that there was no major epidemic after the disaster.

Scene: History will always remember this coordinate of the earth: east longitude 1 18.2, north latitude 39.6. Mankind will always remember this historical moment: July 28th, A.D. 1976, 3: 42: 53.8 a.m. Beijing time. The underground rocks in Tangshan suddenly collapsed! It seems that 400 Hiroshima atomic bombs suddenly exploded in the crust 16 km above the ground!

Lightning and thunder thundered over Tangshan; The wind roared on the earth. In the violent shaking, this industrial city with a population of one million was razed to the ground in an instant. The whole land of North China is shaking violently. There was a loud noise of house collapse in Tianjin, and the Australian Prime Minister who was visiting the city was awakened. Beijing is shaking, the Monument to the People's Heroes is shaking, and the thick beams and columns on Tiananmen Gate make a broken "quack" sound.