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| Earthquake monitoring system at the Earthquake Information and Tsunami Warning Center. (Photo: BL) |
Kon Plong district and neighboring areas experience frequent earthquakes.
According to Mr. Nguyen Xuan Anh, Director of the Institute of Geophysics (Vietnam Academy of Science and Technology), from January 1, 2024 to December 5, 2024, the Institute recorded 463 earthquakes with magnitudes ranging from 2.4 to 5.0 on the Moment scale in Vietnam's territory and sea. Of these, 59 earthquakes with magnitude M ≥ 3.5 were fully reported on the mass media according to the Government's Regulations. In Kon Tum province alone, 427 earthquakes with magnitudes above 2.5 occurred, with the largest M=5.0 occurring on July 28, 2024.
Earthquake monitoring data shows that earthquakes occurring in Kon Plong district and neighboring areas occur frequently and tend to increase in intensity to several hundred per year. The cause is determined to be induced earthquakes related to reservoir water storage.
According to the Institute of Geophysics, this phenomenon of stimulated earthquakes has also occurred at other hydroelectric dams such as Hoa Binh, Son La, Song Tranh 2, A Luoi... Research on stimulated earthquakes in Vietnam was almost not conducted until signs of stimulated earthquakes occurred at the Hoa Binh hydroelectric dam in 1989. Currently, the Institute of Geophysics is maintaining a network of local earthquake monitoring stations at dams in the Da River hydroelectric cascade, Song Tranh 2 hydroelectric dam, DakdRinh and Thuong Kon Tum and the nuclear power project in Dong Nai .
Earthquake monitoring data is an important source of input data for the management and operation of hydroelectric dams. In addition, the Institute of Geophysics has also established a network of earthquake monitoring stations to assess earthquake hazards for the Project of the Nuclear Science and Technology Research Center in Dong Nai.
Operating nearly 100 earthquake monitoring stations in Vietnam's territory and territorial waters
According to Mr. Nguyen Xuan Anh, the Institute of Geophysics is currently operating nearly 100 earthquake monitoring stations in Vietnam's territory and territorial waters, including the national monitoring system and local earthquake monitoring systems.
In the past time, the Earthquake Information Center has recorded thousands of earthquakes not only in the territory and territorial waters of Vietnam, but also earthquakes in the region and around the world . Information on earthquakes with magnitude M≥3.5 is provided fully, accurately and promptly, contributing to the response and mitigation of earthquakes and tsunamis for the country and region. Information on earthquakes with magnitude M≥1.0 is provided fully, accurately and promptly, contributing to the prevention and mitigation of natural disasters, social security and safe operation of hydroelectric projects and key projects in the territory and territorial waters of Vietnam.
Mr. Xuan Anh said that the series of earthquakes caused houses to shake violently, many houses cracked and made people panic not only in Kon Tum province but also spread to neighboring provinces such as Quang Nam, Gia Lai, Da Nang. The shaking was even felt in far away cities such as Ho Chi Minh City, Phnom Penh (Cambodia) (source: USGS).
The earthquake was assessed to have caused the strongest vibration at level VI-VII on the MSK-64 scale in the epicenter. During this time, the working group of the Institute of Geophysics conducted propaganda to raise people's awareness of earthquakes and earthquake prevention in the epicenter (epicenter communes such as Dak Tang, Mang But, Dak Nen, Dak Rinh, Mang Canh) and some other earthquake-affected locations near the epicenter.
Mr. Xuan Anh added that the Institute of Geophysics has organized direct dialogues with local people, explained and clarified the contents of propaganda documents, listened to people's sharing to evaluate the effectiveness of some propaganda seminars on earthquakes in 2022. Thereby, promptly supplementing, explaining, and guiding people on coping skills in new situations, the reality that people experienced in the earthquake on April 28, 2024./.
Source: https://dangcongsan.vn/khoa-hoc/ca-nuoc-ghi-nhan-463-tran-dong-dat-685611.html
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