geological conditions of stability in the three Dou Ping

recently, "4.3 and 4.7 magnitude two earthquake occurred in Hubei Three Gorges reservoir head first county," county of Zigui province. Two earthquake epicenter was only 23 km away from the Three Gorges dam. In March 31st, Hubei province and Yichang City Seismological Bureau, China Earthquake Administration earthquake research institute director please reservoir seismic lab induced experts such as Wang Qiuliang, on whether the earthquake and the impoundment of the Three Gorges project related issues, were answered.

The harm of

two earthquakes have how old?

according to the present investigation of two earthquakes, the March 27th magnitude 4.3 earthquake epicenter region, earthquake of 5 degrees, the Cheap Nordiques Jerseys March 30th magnitude 4.7 earthquake, epicentral area reached 6 degree earthquake.

two earthquake epicenter is located in Guo Jia Ba Zhen, less than 1 km distance, Guo Jia Ba Zhen Cheap Oilers Jerseys part Adobe falling tiles and cracks, influence on Zigui county is relatively small. According to the investigation, the earthquake did not cause the collapse of buildings, part of the building was badly damaged, but there were no casualties.

is currently in the region, 3 of mobile encryption observation, investigation group of 3 macro phenomena to verify the situation at the scene.

continuous seismic impact on the Three Gorges Dam?

the two earthquakes belong to one and the same seismic geological background. Experts believe that two earthquakes belong to the same earthquake sequence. As to whether this earthquake sequence Cheap Devils Jerseys ended, but judging by the aftershocks range detection results.

according to the location characteristics of the Three Gorges Dam, geological conditions of stability in the three Dou Ping, the dam is safe. Yichang's geology Cheap Red Wings Jerseys is not complex, or relatively safe.

the earthquake and the impoundment of the Three Gorges dam is relevant? The mechanism of how?

the impoundment of the Three Gorges project early days, collapse of karst collapse and abandoned coal pit, produced between 0 to 2 magnitude earthquake. In 1997, the Three Gorges project dedicated to the construction of the Three Gorges seismic monitoring network, the minimum magnitude will be monitoring is improved from grade 2 level 0.5. We haven't found between the dam and the Three Cheap Panthers Jerseys Gorges of the earthquake.

two earthquake epicenter is located at the northern end of Xiannushan Fault Belt, the Three Gorges dam before the construction of the demonstration, the region is 5 to 5.5 earthquake in the background, so the preliminary qualitative for structural reservoir earthquake.

storage period in earthquake prone, or low water level earthquake?

Three Gorges scheduling are started filling in September, in November reached 175 meters, and then began to fall, from 4 to May, down to the flood control water level 145 meters. Display detection network, storage stage, small earthquake more, also is in the rising process, the number of earthquakes than the low water level to some more.

in 2003 since the impoundment of the Three Gorges project, the Three Gorges Reservoir area has had 4 times more than magnitude 4 earthquake. In 2008 4.1, 2013 5.1, this year's 4.2 and 4.5 level, the large earthquake, are made from the highest water level to the lower >