When did the earthquake occur in Luzhou?

At 8:40 on March 25, 2018, Beijing time, a magnitude 3.3 earthquake occurred in Longmatan District, Luzhou City, Sichuan (28.92 degrees north latitude, 105.45 degrees east longitude), with a focal depth of 6 kilometers.

A big earthquake is coming, what should you do?

1. If you are in a building during an earthquake, you should quickly stay away from exterior walls, doors and windows. You can choose kitchens, bathrooms, toilets and other small spaces that are not prone to collapse to absorb earthquakes. Never jump off the building. Also cannot use elevator. Try not to hide under a wooden table or bed. Instead, hide next to solid furniture. It is safer to hide near the corner of a wardrobe.

When a building collapses, the weight of the roof falling on objects or furniture hits these objects, leaving a void close to them. This space is called the "Triangle of Life". The larger and stronger the object, the less room it has to be squeezed. The smaller the object is squeezed, the larger the space is, and the greater the chance that the person using the space will avoid injury. If we follow this method, the casualty rate in a building can be reduced from 90% to 2%. In previous earthquakes, people who simply "dropped and covered" were crushed to death, and those who took cover under objects, such as tables, or cars, always suffered some injuries. It is best to open the door to ensure the exit of a house with a reinforced concrete structure. The shaking of the earthquake will cause the doors and windows to be misaligned, making it impossible to open the door. There have been cases of people being locked in the house. Please open the door and secure the exit. Always think about how to escape if you are locked in a room, and prepare ladders, ropes, etc. If an earthquake occurs at night while you are in bed. You simply roll out of bed. A safe space will be created around the bed. If you want to do better, you can grab a pillow to protect your head.

Compared with buildings, bungalows have a higher safety factor during earthquakes. Therefore, when an earthquake occurs in a bungalow, if it is too late to run outside, you can quickly hide under the table, bed, or next to solid furniture or close to it. Wall roots, pay attention to protect key parts. Cover your mouth and nose with clothing to block choking dust. When using a fire, turn off the gas or power supply and quickly escape.

2. If you are outdoors during an earthquake, when the ground shakes violently and you become unstable, people will have the mentality of leaning on or grabbing something.

Most of the doorposts and walls around you will become objects of support. However, these things that look strong and sturdy are actually dangerous. The correct approach is to squat or lie down in an open area on the spot, do not run around, do not return indoors casually, and avoid crowded places; avoid tall buildings, such as buildings, tall chimneys, water towers, and overpasses. and other complex structures; try to get as close to the exterior wall of the building or away from the building. The outside near the wall is far better than the inside. The closer you are to the center of the building, the greater the chance that your escape route will be blocked. In busy streets and building areas, the most dangerous thing is that glass windows, billboards and other objects fall down and injure people. In addition, you should also pay attention to vending machines that tip over and injure people. Be careful to protect your head with your hands or a handbag. When in a building area, it is safer to enter a building to take shelter according to the situation; stay away from high-voltage lines and toxic factories or facilities such as petrochemical, chemical, and gas; and hold on to the bridge railings tightly when crossing a bridge.

3. Leave the vehicle

When a major earthquake occurs, the ground will shake and people will be unable to hold the steering wheel. At this time, you must pay full attention to avoid the intersection and stop the car on the side of the road. In order not to hinder the passage of evacuees and emergency vehicles, the middle part of the road must be cleared. People taking shelter in cars can be injured by falling objects on the roadside. There is a 3-foot-high space next to a crushed vehicle. Therefore, during an earthquake, leave the vehicle and sit close to the vehicle, or lie down in the vehicle. Don't get under the bus. Huge objects falling vertically will crush the bus and kill you. If you are on a bus, the bus may shake. Don't panic. Wait for the driver to stabilize the bus before everyone escapes. . When evacuating, you should walk on foot, and you should take evacuation measures if the fire caused by the earthquake spreads and burns at least and threatens life and personal safety. For evacuation methods, you must not use cars or bicycles to evacuate.

4. Stay calm, choose something to hide on the spot

In stations, theaters, classrooms, shops, subways and other places, stay calm, choose something to hide on the spot, and hide. To be determined, then follow the instructions and evacuate in an orderly manner, and avoid random escapes. Choose a small room and hide on the spot next to sturdy furniture; students in class in the classroom should quickly hold their heads, close their eyes, and hide under their desks under the instruction of the teacher; in the playground or outdoors, they can squat in place. Please use your hands to protect your head; be careful to avoid the teaching building and nearby tall buildings; be sure not to return to the classroom immediately.

5. Do not use the elevator in the event of an earthquake or fire

In case of an earthquake while taking the elevator, press all the buttons for each floor on the operation panel. Once the elevator stops, Get off the elevator, quickly exit the elevator, and take refuge after confirming safety. Elevators in high-rise buildings and recent buildings are equipped with devices to control their operation. When an earthquake occurs, it will automatically move and stop on the nearest floor. If you are trapped in an elevator, please contact the management office for help through the dedicated phone in the elevator.

6. Don’t run outside in a panic

After an earthquake occurs, run outside in a panic. Broken glass, roof tiles, billboards, etc. will fall and be smashed. It is very dangerous to have it on your body. In addition, cement prefabricated board walls, vending machines, etc. are also in danger of collapse. Do not approach these objects. Many people died at the door as the building collapsed. What's going on? If you're standing under a doorframe and it falls forward or backward, you'll be hit by the roof above your head. If the door frame falls sideways, you will be crushed in it, so no matter what, you will be fatally injured!

7. Never take the stairs

Stairs and buildings Objects shake at different frequencies (they shake separately from the main part of the building). The staircase collided with the building's structure until the staircase developed structural problems. When people are on the stairs, they will be cut off by the steps of the stairs. This is a terrible injury! Even if the stairs do not collapse, you should stay away from the stairs. Stairs can be damaged just like buildings. Even if it doesn't collapse due to an earthquake, it will collapse due to bearing too many people. Therefore, we should always first check that the stairs are safe, even if other parts of the building are not damaged.

8. Don’t listen to rumors and don’t act rashly

When a major earthquake occurs, people are easily shaken psychologically. To prevent chaos, it is extremely important for everyone to act calmly and based on correct information. Grasp correct information from portable radios, etc. Trust the information you get directly from the government, police, firefighting and other disaster prevention agencies, never believe irresponsible rumors, and don't act rashly. In areas where destructive earthquakes occur, there are usually more than ten seconds between the earthquake and the collapse of the house. As an individual, you should make a calm and safe decision in an instant to avoid danger.

There are two other common sense things that you should know:

(1) Cats, dogs and children will naturally curl up when they are in danger. If you cannot escape through a door or window during an earthquake, you should do so. It's a safety instinct. And you can do it in a small space. Close to an object, a sofa, or a large piece, it is only slightly squeezed, but leaves a space next to it.

(2) In an earthquake, wooden buildings have the highest safety factor. Wood is elastic and moves with the force of an earthquake. If a wooden building collapses, it will leave a lot of living space. Moreover, wooden materials have the smallest density and the smallest weight. The brick material will break into smaller bricks. Bricks can cause injuries, but far fewer people are injured by bricks than by concrete.

The British writer Thackeray said: "Life is a mirror. If you laugh, it will laugh too; if you cry, it will cry too." At this moment, the earthquake is a mirror, please show your mentality! In the face of sudden earthquakes, we must first remain rational and clear-headed; secondly, we must make correct judgments and make decisive decisions; thirdly, we must persist in enduring pain to save ourselves; fourthly, we must maintain a strong desire to survive at all times. Only with scientific methods can we have a greater chance of survival.