5:15 PM - 7:15 PM
[SVC31-P12] Development of Geological Hazards Information Database: New release of Geological Hazards Information System and Volcanic Hazards Information System
Keywords:hazard, geological information, system, simulation, database
The Geological Survey of Japan, AIST, has implemented the new project “Development of High-Precision Digital Geological Information for Hazard Prevention and Mitigation” since 2022, Volcanic Craters DB, High-resolution Active Faults, Slope Disaster Risk Assessment, Digital Marine Geology and Geological Digital Transformation (DX) of various geological information are project components. The Geological DX project team is working on developing the “Geological Hazards Information Database” for data distribution using API, data download service, making a viewer and promoting the digital transformation of various geological information based on FAIR (Findable, Accessible, Interoperable, and Reusable) data principles. The Geological Hazards Information Database (https://geohazards-info.gsj.jp), which consists of the “Geological Hazards Information System” and “Volcanic Hazards Information System”, has been released to the public in Dec. 2024.
The Geological Hazard Information System is a database of various geological hazard-related data that develops a comprehensive browsing and searching system for geological hazards in Japan and the East and Southeast Asia regions. As of January 2024, 1492 contents are available in the database. The contents are cataloged by data type. GIS data, KML files, and attribute tables can be downloaded for permitted data. Double-clicking on a map displays a pop-up window with information at the point. The contents of the Geological Hazard Information System can be directly displayed on an external Web server or GIS software using an API with WMS parameters, which is shown by double-clicking on any layer.
The Volcanic Hazard Information System is not limited to data browsing, searching, and GIS data downloading but also includes functions for further utilization of digitized geological information, such as an online simulation function for real-time hazard assessment and an online tephra fallout analysis function. The system also includes online simulation functions for real-time hazard assessment and online volume analysis for fallout tephra. Digital data on the distribution of volcanic ejecta, such as tephra falls, pyroclastic flows, and debris avalanches, are also crucial for hazard assessment. The Volcanic Hazard Information System provides online simulations of about 3,000 Quaternary volcanoes worldwide using Energy Cone, Tephra2, and Titan2D. Titan2D has been updated to ver. 4.2 and is much faster than the previous version, taking less than 5 minutes to complete a calculation that used to take about 30 minutes. In addition to the Coulomb model, the TwoPhases-Pitman-Le model, the Pouliquen-Forterre model, and the Voellmy-Salm model have been newly added, enabling detailed investigation of flow phenomena. A total of 313 cases of eruption parameters for domestic and foreign volcanoes were analyzed as of January 2024: 184 cases for the Energy Cone model, 76 cases for the Tephra2 model, and 53 cases for the Titan2D model. As for the digitization of volcanic ejecta, as of January 2024, we have digitized isopach and isomass maps of the tephra falls of 243 eruptions.
We hope that the Geological Hazard Information Database will be used for various purposes, such as the assessment of hazard-affected areas, eruption sequence, and evacuation plans by disaster prevention councils and local governments, the assessment of affected areas when creating or revising disaster prevention maps, the study of disaster scenarios, use by universities and research institutions, and outreach activities at geoparks. We hope the Geological Hazards Information System will used for various purposes.
Figure. Geological Hazards Information System. 1:200k Seamless Geological Map of Japan and tephra fall distribution map of March 31, 2000, Usu Eruption. The GIS Map (Standard Map) published by the Geospatial Information Authority of Japan is used as a base map.
The Geological Hazard Information System is a database of various geological hazard-related data that develops a comprehensive browsing and searching system for geological hazards in Japan and the East and Southeast Asia regions. As of January 2024, 1492 contents are available in the database. The contents are cataloged by data type. GIS data, KML files, and attribute tables can be downloaded for permitted data. Double-clicking on a map displays a pop-up window with information at the point. The contents of the Geological Hazard Information System can be directly displayed on an external Web server or GIS software using an API with WMS parameters, which is shown by double-clicking on any layer.
The Volcanic Hazard Information System is not limited to data browsing, searching, and GIS data downloading but also includes functions for further utilization of digitized geological information, such as an online simulation function for real-time hazard assessment and an online tephra fallout analysis function. The system also includes online simulation functions for real-time hazard assessment and online volume analysis for fallout tephra. Digital data on the distribution of volcanic ejecta, such as tephra falls, pyroclastic flows, and debris avalanches, are also crucial for hazard assessment. The Volcanic Hazard Information System provides online simulations of about 3,000 Quaternary volcanoes worldwide using Energy Cone, Tephra2, and Titan2D. Titan2D has been updated to ver. 4.2 and is much faster than the previous version, taking less than 5 minutes to complete a calculation that used to take about 30 minutes. In addition to the Coulomb model, the TwoPhases-Pitman-Le model, the Pouliquen-Forterre model, and the Voellmy-Salm model have been newly added, enabling detailed investigation of flow phenomena. A total of 313 cases of eruption parameters for domestic and foreign volcanoes were analyzed as of January 2024: 184 cases for the Energy Cone model, 76 cases for the Tephra2 model, and 53 cases for the Titan2D model. As for the digitization of volcanic ejecta, as of January 2024, we have digitized isopach and isomass maps of the tephra falls of 243 eruptions.
We hope that the Geological Hazard Information Database will be used for various purposes, such as the assessment of hazard-affected areas, eruption sequence, and evacuation plans by disaster prevention councils and local governments, the assessment of affected areas when creating or revising disaster prevention maps, the study of disaster scenarios, use by universities and research institutions, and outreach activities at geoparks. We hope the Geological Hazards Information System will used for various purposes.
Figure. Geological Hazards Information System. 1:200k Seamless Geological Map of Japan and tephra fall distribution map of March 31, 2000, Usu Eruption. The GIS Map (Standard Map) published by the Geospatial Information Authority of Japan is used as a base map.