First, the well water is calm and wave-free, and suddenly it is as turbid as ink, and the mud floats. It must be an earthquake.

Second, the water in the pond, the wind blows into a hub, algae entangles, and bubbles rise for no reason. If the tea is boiled, it must be an earthquake.

Third, it is natural that the sea meets the wind and the waves are surging; If the weather is sunny, the typhoon doesn't work, and the sea water suddenly surges up, which is extremely turbulent. It must be an earthquake.

It gets dark in the middle of the night, and the sky suddenly becomes bright and radiant, which is no different from the daytime. It must be an earthquake.

The weather is sunny and warm, and the blue sky is clean. Suddenly, I saw the dark clouds winding like wisps, like a long snake, spanning in the air for a long time, and it must be an earthquake.

6. It's midsummer, it's hot and transpiration, it's sweating like rain, it's as cold as ice and snow, it's cold air attacking people, it's muscle millet, and it must be an earthquake.