Unusual explosion in Quang Nam due to earthquake

Prof. Dr. Cao Dinh Trieu, expert at the Institute of Geophysics, said that the seismic station in Thua Thien - Hue recorded aftershock on November 16 in Bac Tra My district (Quang Nam) under 3.5 richter scale, belonging to Stimulating earthquake form.

According to Professor Trieu, because this is a small earthquake, the seismic station of Thua Thien - Hue did not inform the Earthquake Reporting Center and tsunami warning of the Institute of Geophysics.

Mr. Trieu also said that earthquakes often occur in areas with reservoirs and water storage, dam construction on high. When the reservoir accumulates water in Song Tranh 2 hydropower plant, it is possible that the vein has penetrated into the fracture zone, causing the earthquake chain to be stimulated, producing an explosive sound.

"The reason people hear loud explosions is because aftershocks occur near the ground" , Mr. Trieu said.

River Tranh 2 hydropower project can affect the internal fault zone
underground, causing stimulating earthquakes in small intensity. (Photo: Tri Tin)

"Small earthquakes make it difficult to jeopardize the lives and property of people in the region. If the fault zone in the ground in the downstream area of ​​Song Tranh 2 is strong, it will create aftershocks over 3.5 Richter, The Institute of Geophysics will send officials to Bac Tra My to study this phenomenon, " stressed Mr. Trieu.

From 9pm on November 16 to 3am on November 17, people downstream of Tranh River 2 hydropower project in Bac Tra My district heard in the ground emitting a lot of explosions, including a loud explosion at 3am. they panic run out of the house.

Leaders of Bac Tra My district sent a document to speed up the proposal of Quang Nam People's Committee to direct the authorities to invite experts to study and analyze this unusual phenomenon.