If there is going to be an earthquake, will there be any signs? take for example

Before an earthquake, especially before a strong earthquake, there will always be some climate and weather anomalies. Such as thermal anomalies, are very obvious before some earthquakes. 17.3 days before the Xingtai earthquake on March 8, 1966, the average temperature rose from-0/3 degrees to 1 1 degrees above zero. Ten days before the Haicheng1February 4, 975 earthquake with magnitude 7.3 was 3.7 degrees higher than the same period of last year. The explosive temperature rise from 8: 00 to 9: 30 12 degrees on the day of the impending earthquake made the cold winter sultry. This abnormal phenomenon is due to the fact that the earthquake-prone area is on the eve of the violent change of the crust, and before the rupture, the underground heat energy has been violently diffused and transported to the atmosphere by some means. This thermal anomaly has a small range and a short duration.

Some experts have come to the conclusion that in a certain period of time one year or several years before the earthquake, drought first followed by waterlogging, or flood followed by drought; Or drought and flood alternate, followed by a big earthquake. Such earthquakes occur both at home and abroad, such as the Nantong earthquake of 1970. In the first two or three years, a once-in-a-century flood occurred, which triggered a major flood, and then a rare drought occurred. 1989 alternating drought and flood occurred before Daming earthquake in Hebei province. Other phenomena include strange wind, lewd rain, yellow dust and atmospheric turbidity before the earthquake.

Using the macroscopic precursor phenomena such as animals, earth sound, earth light, water level and water quality before the earthquake, the abnormal changes are observed, which provides an important basis for the imminent earthquake prediction. Regarding the abnormal reaction of animals before the earthquake, there was a proverb among the people in the earthquake area:

Animals have precursors before earthquakes, so close monitoring is the most important.

Mules, horses, cattle and sheep don't enter the circle, and mice flee in groups.

Chickens fly up trees, pigs bark, ducks don't go into the water, dogs bark.

The hibernating old snake comes out of the hole early, and the birds and pigeons don't return to their nests.

The rabbit jumped and bumped with its ears upright, and the fish jumped in panic.

Every household carefully observes and comprehensively predicts the abnormal situation.