Japan Geoscience Union Meeting 2023

Presentation information

[J] Oral

S (Solid Earth Sciences ) » S-VC Volcanology

[S-VC32] Mitigation of volcanic disasters - basic and applied researches

Fri. May 26, 2023 1:45 PM - 3:15 PM 303 (International Conference Hall, Makuhari Messe)

convener:Shinji Takarada(Geological Survey of Japan, National Institute of Advanced Industrial Science and Technology), Yasuhiro Ishimine(Mount Fuji Research Institute, Yamanashi Prefectural Government), Tatsuro Chiba(Asia Air Survey Co., Ltd.), Yousuke Miyagi(National Research Institute for Earth Science and Disaster Resilience), Chairperson:Shinji Takarada(Geological Survey of Japan, National Institute of Advanced Industrial Science and Technology), Yasuhiro Ishimine(Mount Fuji Research Institute, Yamanashi Prefectural Government), Yousuke Miyagi(National Research Institute for Earth Science and Disaster Resilience), Tatsuro Chiba(Asia Air Survey Co., Ltd.)

3:00 PM - 3:15 PM

[SVC32-06] Experiments of Grasping of Climber’s Movement and Real-time Sharing of Climber’s Data on Mount Ontake

*Yousuke Miyagi1, Kazushiro Yoshimori1, Shigeharu Kaneta1, Yuichiro Usuda1 (1.National Research Institute for Earth Science and Disaster Resilience)

Keywords:Climber dynamic data, real-time information sharing, information visualization, Mt. Ontake

In Japan, there are 111 active volcanoes, including Mt. Fuji, Mt. Ontake, and Mt. Nasudake that can be approached by climbers to the vicinity of the crater. The disaster of Mt. Ontake in 2014 was a major volcanic disaster with the highest number of deaths and missing people since World War II, in spite of the small scale of the eruption. At that time, it was difficult for local governments to grasp a number and location of climbers, and to share information appropriately. It is quite important to grasp whereabouts of climbers and to share appropriate information in the event of disaster for proper decision of rescue and search. In addition, by grasping the dynamics of climbers from normal times, local governments will be able to formulate evacuation plans based on more realistic back data.
Several experimental efforts to acquire climber’s dynamic data have conducted in Mt. Fuji and Mt. Nasudake. In the experiments, we distribute small beacons to climbers, and receivers which are set in mountain trails detect signals from the beacons, then we can grasp the number and location of climbers who have the beacons in real time. In 2022, we carried out an experiment using same system in Mt. Ontake in corporation with local government, that is Kiso town. In the experiment, we tried to understand the climber’s movement during evacuation drill, and to share the acquired data with local governments.
As a result of the monitoring of the climber’s movement, it was found that some climber’s moved to a mountain hut but others did not take evacuation action after the siren that simulated an eruption. Through the information sharing experiment, concrete opinions about what information should be shared and how it should be shared were raised.
Through these experiments and based on the results of past experiments, we will organize issues in volcanic disaster prevention that have not been sufficiently discussed due to their low frequency, and consider ways to solve them.