In order to better understand tectonic seismic activities in the North of Viet Nam and the surrounding area, scientists from the Institute of Geophysics in collaboration with the Taiwan Institute of Earth Science (China) have just deployed into research project on deep structural characteristics and modern crust movement in the North of Viet Nam by wide band seismic data and continuous global satellite positioning system.
Notably, scientists have used wide range seismic data sets and GPS signals continuously collected for many years in the North of Viet Nam and set up an additional 10 continuous GPS signal measuring stations according to route on the basis of 25 existing seismic stations.
This is the first time, our country has a set of data combining both earthquake data and continuous GPS data on a monitoring line of 25 measuring stations crossing the Red River fault zone - the major fault zone and plays an important role in tectonic activities in Viet Nam and the region. Monitoring network and continuous GPS data has provided a rich set of data, playing an important role in the research in the framework of the topic but also for many subsequent studies.
After 3 years of research, with the cooperation of leading experts from the two research institutes, the topic has provided the latest results on the model of the structure of the Earth's crust according to wide-band seismic data for the North of Viet Nam and the Southeast of the Red River fault zone, seismic structure of earthquakes and determine modern motion patterns of the Earth's crust in the Northwest of Viet Nam (along the Lai Chau, Son La, and Red River faults).
In particular, the earthquake station network and GPS provide new data to the Institute of Geophysics, contribute to enriching the Geophysics database, which is the basis for implementing other earthquake studies and other related fields. This monitoring network data will contribute to the more accurate determination of earthquakes occurring in the North for earthquake and tsunami warnings.
These results contribute to a better understanding of the modern structural features and geodynamics of the North and Southeast Asia, becoming a premise for further and more specific research on earthquake hazards tsunami in Viet Nam. The results of the topic have provided new useful information for basic research and other applications in the field of earthquake hazard assessment as well as other related catastrophes.