A 3.3-magnitude earthquake occurred near Eryuan County, Dali Prefecture, Yunnan Province. What do you know about earthquakes?

There are some accidents every day in our life. An earthquake of magnitude 3.3 occurred in Eryuan County, Dali Prefecture, Yunnan Province. The focal depth reached 9 kilometers. When it comes to earthquakes, everyone is both familiar and unfamiliar. It is well known that on TV dramas, people often see how horrible earthquakes are when they come. Strangely, many people have never experienced an earthquake. Earthquake is one of the common natural disasters. When an earthquake comes, if it can be prevented in time, it can reduce the harm caused by the earthquake to human beings.

Before the earthquake in Dali, Yunnan, there were usually many small vibrations, up to dozens of times. Before the earthquake, there will be some abnormal atmospheric physical phenomena, such as sudden storms, heavy snow and obvious weather changes. When an earthquake comes, if you observe animals, you will find that their reactions are abnormal. They were frightened, and dogs barked and walked around in droves. Animals will also have abnormal behaviors, such as hibernating snakes coming out of holes and mice fleeing outside during the day, not afraid of people.

Before the earthquake of magnitude 3.3, the water will be abnormal. If there is a well at home, you will find that the water level is rising and may even gush out of the ground. Therefore, we should observe carefully in our daily life, and if something unusual happens, we must do a good job in dealing with it. Save yourself when the earthquake comes, and try to stay in a relatively open position. Action must also be decisive, not hesitant, which will lose the best chance to escape.

Signs of an earthquake If there is an earthquake in the room, don't rush out. Seize the time to find a suitable shelter and squat or lie down as much as possible, so that even if the house collapses, people are safe. It was terrible when the earthquake came. A serious earthquake occurred in Sichuan, causing casualties and property losses. Many people lost their relatives and friends in this earthquake, which is very sad. Although the earthquake is terrible, we should also pay attention to prevention at ordinary times, popularize earthquake prevention knowledge for children and reduce casualties.