Recently, netizens in Hunan actually took photos of the drought in Dongting Lake. One of the five largest freshwater lakes in China, known as the "Eight Hundred Miles of Dongting", with a vast water area and magnificent lake surface, it has begun to dry up and crack under this year's continuous high temperature.
The same Yellow River , one of the longest rivers in the world and the second longest river in China, was also photographed exposed at the bottom of the river by Henan netizens.
The "drought earthquake theory" was first proposed by earthquake scientist Geng Qingguo, and has successfully predicted earthquakes many times since the 1990s, including the Tangshan Earthquake . In 1972, the Tangshan area had not experienced major droughts for decades. Three and a half years later, on July 28, 1976, a magnitude 7.8 earthquake occurred in Tangshan.
Drought earthquake theory believes that a major drought will often occur in the earthquake area within 1 to 3 and a half years before an earthquake of magnitude 6 or above. This is because the activity of underground magma will cause a large amount of heat to rush to the ground along with cracks, and also due to changes in ground temperature. Increases lead to drought in the region.
In 2006, Sichuan region suffered a once-in-a-century drought. As a result, in 2008, a magnitude 8 earthquake occurred in Wenchuan.
However, the "drought and earthquake theory" has not been recognized by the scientific community and is only studied as an academic point of view. Because earthquakes are not 100% likely to occur after drought, nor are there 100% drought before earthquakes. The probability of an earthquake following a drought is 84.8%.
Therefore, on the basis of the drought and earthquake theory, it is necessary to combine other scientific and technological means to improve the level of earthquake prediction, so that some preventive measures can be effectively taken to reduce damage and losses.
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