Earthquakes, commonly known as earthquakes. Like ordinary wind and rain, it is a common natural phenomenon and a manifestation of crustal movement, that is, the sudden release of slowly accumulated energy in the earth causes the surface to vibrate, but seemingly ordinary earthquakes bring us infinite fear. Take China as an example, China is the country with the largest number of earthquakes in the plate, and the death toll accounts for 60% of the global earthquake death toll. The earthquake with the largest number of deaths was1the M = 8 earthquake that occurred in hua county, Shaanxi Province on October 23rd. The death toll "has been reported to more than 830,000 famous people, and unknown people are not counted." The earthquake that caused the most damage and loss was the 7.8 earthquake in Tangshan on July 28th, 1976, with a direct economic loss of 9.6 billion yuan!
These shocking data alert us, but also make us wonder: can't we really prevent earthquakes effectively?
The answer is yes. So how to prevent it? Earthquake prevention is generally divided into two aspects: prediction and prevention. Prediction is to analyze and predict the data recorded by observation instruments, so as to reduce earthquake disasters. The other way is prevention, because casualties and property losses mainly occur in buildings, so it is very important to strengthen the earthquake-resistant work and earthquake-resistant drills of buildings.
In addition, we can also identify whether an earthquake will occur through animals, plants, groundwater and other aspects. In general, animals are very common before earthquakes, which are manifested as irritability, panic, anxiety, abnormal activities, not eating, not entering the circle, and some are listless and sluggish. The abnormal time of animals is mostly concentrated in a few minutes to two or three days before the earthquake, and the reaction is mostly on the day before the earthquake, and the epicenter is the most concentrated. There are also earthquakes that occur underground, and groundwater is buried in the stratum. Before the earthquake, the stress changes caused the groundwater level to rise and fall, the well water turned over, bubbled, whirled, muddy, made noise, changed temperature, changed taste, floated oil or caused changes in chemical composition. Are all abnormal phenomena before the earthquake. Knowing this knowledge can help us know the coming earthquake in advance.
In short, we should learn more knowledge and know the methods of earthquake prevention and disaster reduction from an early age. Although there is no earthquake now, if it does happen, as long as everyone knows how to prevent earthquakes, it will reduce a lot of losses and reduce the suffering of many people.