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Development of a Web-GIS based decision support system for earthquake warning service in Vietnam

This paper describes the development of a Decision support system (DSS) for earthquake warning service in Vietnam using Web GIS technology. The system consists of two main components: (1) an on-line database of earthquakes recorded from the national seismic network of Vietnam, and (2) a set of tools for rapid seismic hazard assessment. Using an on-line earthquake database, the system allows creating a shake map caused by a newly recorded earthquake. | Vietnam Journal of Earth Sciences, 40(3), 193-206, Doi: 10.15625/0866-7187/40/3/12638 Vietnam Academy of Science and Technology Vietnam Journal of Earth Sciences (VAST) http://www.vjs.ac.vn/index.php/jse Development of a Web-GIS based Decision Support System for earthquake warning service in Vietnam Nguyen Hong Phuong1, 2, 3*, Nguyen Ta Nam1, Pham The Truyen1, 2 1 Institute of Geophysics (VAST), Hanoi, Vietnam Graduate University of Science and Technology(VAST), Hanoi, Vietnam 3 IRD, Sorbonne Universités, UPMC Univ Paris 06, Unité Mixte Internationale de Modélisation Mathématique et Informatiques des Systèmes Complexes (UMMISCO)32 venue Henri Varagnat, 93143 Bondy Cedex, France 2 Received 03 February 2018; Received in revised form 09 April 2018; Accepted 30 May 2018 ABSTRACT This paper describes the development of a Decision support system (DSS) for earthquake warning service in Vietnam using Web GIS technology. The system consists of two main components: (1) an on-line database of earthquakes recorded from the national seismic network of Vietnam, and (2) a set of tools for rapid seismic hazard assessment. Using an on-line earthquake database, the system allows creating a shake map caused by a newly recorded earthquake. In addition, the Web GIS environment allows any user, including non-professional to get useful information about a just-occurred event and the possible impact caused by the earthquake shortly after its occurrence. A fault-source model developed for Vietnam was used as a part of the hazard calculation and mapping procedure. All information and results obtained from the system are automatically included in the earthquake bulletins, which will be disseminate national wide afterward by the Vietnam earthquake information and tsunami warning Center. The shake maps produced by the DSS in terms of both Peak Ground Acceleration and intensity values are rapidly available via the Web and can be used for emergency response, public information, loss .