A crack of land runs over 20 meters, near the Song Tranh 2 hydroelectricity plant’s dam. It is caused by recent mountain exploding
Mountain explodes violently in Vietnam as earth cracks- scientist warn of a coming quake
http://www.tuoitrenews.vn/cmlink/tuoitrenews/features/exploding-mountain-causes-earthquake-concerns-1.53526
Hoards of frogs: While the tremors await an explanation from scientists, residents continue to witness bizarre phenomenon. People of Bac Tra My District recall the story of Ho Van Thoi, 54, who brought back a load of frogs and toads caught in Nuoc Vin creek’s headwaters one day before the quake. Thoi says, “That afternoon, while trying to quench my thirst, I saw an army of frogs and toads swimming upstream. There were so many of them that they climbed on top of one another, all I had to do was reach down and pick them up.” Thoi, along with other villagers, asserts that such an odd event has never happened before in this area. “The frogs must have heard the tremors before us humans!” Thoi postulates. After the strong earth tremor at Bac Tra My on November 17th, Associate Prof. Dr. Cao Dinh Trieu – vice chairman and secretary-general of Vietnam’s Geophysical association – asserted that the event was a phenomenon known as “earthquake excitation.” The nearest seismic station is in Thua Thien-Hue, where a tremor of a 3.5 magnitude on the Richter scale was recorded. On November 28, the station recorded earthquakes in Bac Tra My and Nam Tra My districts with a magnitude lower than 3 on the Richter scale. There was also a cracking sound heard from Tra Bong (Quang Ngai) all the way to Quang Nam. –Tuoitrenews Vietnam