Hello everyone, today the editor has paid attention to a more interesting topic, which is the question about 21 tons of tnt, so the editor has compiled a related answer to introduce 21 tons of tnt, Let's take a look. What is the scope of the explosion in Tianjin? What is the scope of the explosion in Tianjin? The earthquake was felt in Hebei, mainly because the shock wave of the explosion shattered the glass. On August 13, according to the China Earthquake Network, according to the waveform record results, the first explosion occurred at 23:34:6 on August 12. The near-seismic magnitude ML is about 2.3, which is equivalent to 3 tons of TNT. After 30 seconds after the second explosion, the near-earthquake magnitude ML is about 2.3, which is equivalent to 21 tons of TNT. The earthquake network clearly recorded the accident. From the results, it can be seen that there were two explosions, and the second one was bigger. How much power can 21 tons of TNT produce? This morning, a blasting expert from the China Engineering Blasting Association said in an interview with a reporter from Fawan that theoretically, an explosion of one kilogram of TNT can produce 4.2 million joules of energy, according to 1 joule = 0.102 kg·m Calculated, the energy released by one kilogram of TNT can move a one-kilogram object 420 kilometers, or a 100-kg object 4.2 kilometers. In fact, after the explosion, the energy will be converted and absorbed in other ways, so the movement of an object is actually far from the calculated value. Experts said that some people in foreign countries have done experiments. Putting 1 ton of TNT on the loess ground can blow up a pit of 37 cubic meters. The charge of another grenade is about 50 grams. It cannot survive within 10 meters. 200 grenades exploded simultaneously. Experts also said that if there is a hard shell package, the power will be much greater, if it is scattered, the power will be small, if it is buried under the ground, because the ground absorbs part of the energy, the destructive effect will be reduced. According to his research, if 1 ton of TNT exploded, the doors and windows within a radius of 200 meters would be seriously damaged. So far, the above is the introduction of the editor to the problem of 21 tons of tnt. I hope that the one-point answer about 21 tons of tnt will be useful to everyone.