1. Groundwater anomaly.
Well water is a treasure, and the precursor comes early.
No rain, muddy water, dry weather and well water.
The water level changes greatly, and the flowers are bubbling.
Some change color, some change taste.
2. Animal abnormality: Before the earthquake, animals have signs, so close monitoring is the most important.
Mules, horses, cattle and sheep don't enter the circle, ducks don't go into the water, and dogs bark.
The mouse escaped, but the pigeon flew back to its nest.
The snake came out of the hole in the ice and snow, and the fish jumped up in fear.
3. Ground light and ground sound: Ground light and ground sound are light and sound emitted from underground or ground before or during an earthquake, and are important impending earthquake predictions.
Before the impending earthquake, in an instant, the earth boomed and the fire flashed.
When the earthquake comes, we must act decisively and quickly to avoid danger.