Earthquake is one of the most destructive natural disasters. In the event of an earthquake of magnitude 6 or above, houses may collapse, which may easily lead to casualties and property losses. As we all know, if there is a big earthquake, people can only survive in an open place. So, if you sit on an airplane and the airplane is flying in the air, can you escape?
Indeed, in the event of a major earthquake, high-rise and low-rise buildings in the city will collapse, and people may be hit by falling objects even if they stand in the open space. However, if they sit on the plane, the plane will fly in the sky, far from the ground. Although seismic waves will change the local magnetic field during an earthquake, this change is limited and will not pose a threat to aircraft flying normally in the atmosphere. Therefore, it seems that the danger of earthquake will not come to the people who fly.
As we all know, there are seismic waves in earthquakes, which can spread in solids, liquids and gases. If the plane happens to fly over the earthquake zone, will this seismic wave spread into the air through the air and affect the flight of the plane? First of all, we must know that when the plane flies normally, the distance from the ground is more than 9000 meters. These seismic waves spread through the air to more than 9000 meters, and they have been blocked by the atmosphere all the way and almost disappeared. Where can they interfere with the plane?
But the earthquake will still have an impact on the plane, but not when flying, but when taking off and landing. Because of the earthquake, the ground of the airport may be squeezed and deformed, resulting in uneven runway, and the collapse of airport buildings will also destroy the airport site. The airport has all kinds of communication and navigation facilities, which will also be destroyed in the earthquake. If you happen to be sitting on a plane that hasn't taken off yet when the earthquake happens, you will also be the victim of this earthquake.
The airplane keeps its flight path by magnetic heading, so the equipment for indicating the magnetic heading on the airplane is called gyro magnetic compass, which is based on the magnetic compass (equivalent to a big magnet) and is corrected by using the characteristics of the gyro to obtain a more accurate magnetic heading.
We know that the earthquake will have a considerable impact on the magnetic field, that is, the magnetic induction line in the above picture will be greatly distorted, which will directly lead to the aircraft getting the wrong heading information in flight and the aircraft will become blind.