What are the most obvious signs before an earthquake strikes?

The most obvious signs before an earthquake is as follows:

1. In the moments before a major earthquake, there are often ground sounds, ground lights and ground tremors, preceded by strong shaking12 It appears on the surface in about seconds and serves as an early warning signal of an imminent earthquake. Groundwater, including well water, is abnormally muddy, bubbling, turning over, heating up, changing color, changing taste, rising or falling suddenly, deforming the wellbore, or suddenly drying up the spring source. Or gush etc.

2. Certain organs of many animals are particularly sensitive, and they can know the occurrence of some disaster events in advance than humans. The physical and chemical changes (vibration, electricity, magnetism, meteorology, abnormal water radon content, etc.) caused by earthquakes can often stimulate certain sensory organs of some animals and cause abnormal reactions. Those animals with very sensitive senses will be terrified when they feel this kind of sound wave, resulting in abnormal phenomena such as winter snakes coming out of their holes, fish leaping out of the water, pigs and cows jumping in circles, dogs crying and wolves roaring. These are all signs before an earthquake strikes.

Measures:

1. Don’t be impatient during a major earthquake. A destructive earthquake lasts only 12 seconds on average from when people feel the vibration to when buildings are damaged. During this short period of time, you must not panic. You should make quick decisions to ensure safety based on the environment. If you live in a bungalow, you can quickly run out the door. If you live in a building, do not jump off the building. You should immediately cut off the electric switch, turn off the gas, and temporarily evacuate to a small span such as the bathroom, or under a table, bed, etc., and evacuate quickly after the earthquake to prevent strong aftershocks.

2. When there are many people, find a hiding place first. If there is an earthquake in schools, shops, theaters and other places where people gather, you should avoid panic. You should hide under desks, chairs or solid objects immediately, and wait for the earthquake to pass before evacuating in an orderly manner. Teachers and other on-site staff must calmly direct people to avoid earthquakes on the spot and must not take the lead in running around.

3. Stay away from the danger zone. If you encounter an earthquake on the street, protect your head with your hands and quickly move away from the building to the center of the street. If you encounter an earthquake in the countryside, be careful to stay away from cliffs, steep slopes, river banks and high-voltage lines. Moving cars and trains must stop immediately.