The damage brought to us by the earthquake can be imagined, but before the big earthquake, there are often some obvious signs, and with these signs, we can fight for a little escape time for ourselves when the earthquake comes.
The animal is abnormal. Animals have a sixth sense, if the animals around you are found to be abnormal, pigs do not enter the circle, dogs bark, a large number of mice out of the hole, etc., it may be a sign of the coming earthquake.
Seismic clouds appear. Earthquake clouds are caused by intense friction between layers of rock to generate heat, so be alert if you see a spectacular earthquake cloud in the sky.
Ground sound appeared. If it is a magnitude 3 or higher earthquake, it is usually accompanied by a rumbling earthquake
The sea suddenly retreated. In coastal areas, tsunamis usually follow earthquakes, and if the sea suddenly regressed at the seaside, unlike the usual ebb tide, it was necessary to quickly move to higher ground