Announcement of International Symposium “Multiple and cascading hazards at snow-covered active volcanoes: Hazards, risk assessments and future mitigation” (English page)
イベント
At the 1985 eruption of Nevado del Ruiz in Colombia, a snowmelt lahar (volcanic mudflow) caused >23000 casualties. Similar disasters could occur at seasonally snow-covered, active volcanoes in Niigata Prefecture (Mts. Niigata-Yakeyama and Myoko).
This symposium invites speakers around the world and in Japan to discuss the multiple and cascading hazards triggered by snow- and ice-melt, and rain during eruptions at snow-covered and glacial volcanoes in countries such as Japan, Chile, Iceland, and New Zealand. The symposium features and discusses hazard processes, risk assessment, and future mitigation strategies for regions with snow-clad active volcanoes.
This is a public symposium open to natural hazard experts, students, local residents, and the general public.
Organizer
Research Institute for Natural Hazards and Disaster Recovery, Niigata University
Date and Time
12 July 2026 (Sunday), 9:20 AM – 4:00 PM
Venue
Art Hotel Niigata, 4th Floor, Conference room “Yuzawa” (directly connected to Niigata Station)
Admission
Free
Language
English language is used during the symposium. However, Japanese may be used for supplementary purposes.
Christopher CONWAY (Geological Survey of Japan, AIST)
<Program>
Morning session (9:30 AM – 11:50 AM)
Aldo Martín UMAZANO (INCITAP/Pampa University, Argentina) Logjam’s dynamics and catastrophic sedimentation in fluvial systems: Historical lessons from Chaitén volcano and the Blanco River, southern Chile
Violchen Andrea SEPULVEDA (SERNAGEOMIN, Chile) Multiple hazards in southern Chile: Landslides, Volcanic activity and risk management in the Los Lagos Region
Kae TSUNEMATSU (Yamagata University, Japan) Numerical modeling of gravity currents on snow-clad volcanoes: Avalanche, slush flows, snowmelt lahars
Kyoko KATAOKA (Research Institute for Natural Hazards and Disaster Recovery, Niigata University) Multiple and cascading hazards at snow-covered volcanoes: processes, evaluation, and future mitigation
Afternoon session (1:10 AM – 3:40 PM)
Andrew RUSSELL (Newcastle University, UK) Volcanically-generated outburst floods in Iceland: Processes, impacts and hazards
Christopher CONWAY (Geological Survey of Japan, AIST) Landforms and hazards created by interactions between eruptions and ice/snow (at arc volcanoes around the Pacific Ocean)
Katsuhisa KAWASHIMA (Research Institute for Natural Hazards and Disaster Recovery, Niigata University) Distribution and altitude dependence of snow water equivalent on Niigata-Yakeyama volcano, Japan estimated using airborne LiDAR
Takane MATSUMOTO (Research Institute for Natural Hazards and Disaster Recovery, Niigata University) Distributed estimation of snow water equivalent on the western slope of Osorno Volcano, southern Chile, using time-lapse camera images and ground measured meteorological data
Hirofumi NIIYA (Research Institute for Natural Hazards and Disaster Recovery, Niigata University) Rheological measurements of tephra-snow-water mixtures in low-temperature experiments: viscosity and yield behavior
Discussion
《 Contact information 》
Organizer:
Research Institute for Natural Hazards and Disaster Recovery, Niigata University
