How does the Three Gorges Dam affect the speed of the Earth's rotation? Why?

Will the impoundment of the Three Gorges affect the rotation of the earth's axis

The monitoring data since p>23 show that the microseismic and extremely microseismic activities in the Three Gorges reservoir area are decreasing year by year. Since the experimental impoundment of 175 meters in 21, the largest reservoir earthquake was the M 2.3 earthquake in Dongqiaokou, Badong County in October 21. The intensity and frequency of earthquakes are lower than those in 28 and 29, and there is no frequent occurrence of microseisms and extremely microseisms during the 135m and 156m impoundments.

The statement that the Three Gorges reservoir capacity is too large will lead to the earth's axis deflection is also unfounded. According to the survey, after the Three Gorges Reservoir is filled to 175 meters, its maximum storage capacity is 39.3 billion cubic meters, ranking only 22nd in the world, far from the "world super-large reservoir" as expected.

as early as the 196s, five reservoirs were born in the world, all of which have a storage capacity of 1 billion cubic meters more than the maximum storage capacity of the Three Gorges Reservoir, which is 39.3 billion cubic meters. The largest one is the Kariba Reservoir in Zimbabwe, with a storage capacity of 184 billion cubic meters, and the smallest one is the manik V Reservoir in Canada, with a storage capacity of 141.8 billion cubic meters.

The Three Gorges Reservoir operates at a water level of 175 meters for less than two months every year, and its storage capacity is only over 1 billion cubic meters in most periods. Cao Guangjing, chairman of the Three Gorges Corporation, said that after the Three Gorges Reservoir is filled to 175 meters, it is unlikely that there will be significant changes in the reservoir-induced earthquake activity.

Extended information:

Significance of Three Gorges Dam Construction

The Three Gorges Project is the water conservancy hub with the greatest comprehensive benefit in the world so far, and it is exerting great flood control benefits and shipping benefits. After the completion of the Three Gorges Dam, a 6-kilometer-long reservoir will be formed, which will be impounded by stages and become a rare new landscape in the world.

after the completion of the project, the normal water level of the reservoir is 175 meters, the flood control capacity is 22.15 billion cubic meters, and the total storage capacity is 39.3 billion cubic meters, which can give full play to its key role in the flood control system in the middle and lower reaches of the Yangtze River, and will significantly improve the 66-kilometer waterway from Yichang to Chongqing. The 1,-ton fleet can directly reach Chongqing Port, and will bring into play ten benefits such as flood control, power generation, shipping, breeding, tourism, South-to-North Water Transfer Project and water supply irrigation.

The Three Gorges Dam, a measurement and control network in China, caused the earth's rotation axis to deviate by nearly one foot?