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Large-Scale Eruption Lab
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The lab investigates the true nature of giant calderas to prepare for large-scale eruptions.
AboutAbout the lab
Understanding the Reality of Giant Calderas and Clarifying the Potential for Large-Scale Eruptions
The Large-Scale Eruption Lab analyzes observational data on earthquakes and ground deformation to gather scientific knowledge about giant caldera eruptions, such as the movement of magma at depth and the processes by which it migrates and is supplied to shallow levels.
Based on this, the lab conducts research on long-term forecasting of the occurrence of large-scale eruptions.
Key terms
- Caldera
- A large depression formed when the central part of a volcano collapses after a major eruption.
- Aira Caldera
- A giant caldera at the head of Kagoshima Bay. Sakurajima lies on its southern rim.
- Seismic reflection method
- A method for investigating underground structure by detecting the reflections of artificially generated vibrations.
ResearchResearch themes
The lab accumulates scientific knowledge about giant caldera eruptions and conducts research on long-term forecasting of large-scale eruptions.
*Illustrative imageUnderstanding the Reality of Giant Calderas
By analyzing seismic and ground deformation observation data, among other methods, the lab accumulates scientific knowledge about giant caldera eruptions, including magma dynamics at depth and the processes of migration and supply to shallow levels, and conducts research on long-term forecasting of large-scale eruptions.
*Illustrative imageSubsurface and Seafloor Observations at Aira Caldera
At Aira Caldera, the lab has built a system of seafloor reference points for measuring ground movement. It is also carrying out long-term continuous reflection experiments using artificial vibrations, and analyzing the three-dimensional seismic velocity structure beneath the caldera.
*Illustrative imageEstimating Magma Supply
The lab estimates the rate of magma supply beneath Aira Caldera from GNSS observations.
MembersFaculty
- Program-Specific ProfessorTomoki Tsutsui
- Associate ProfessorTakeshi Tameguri
- Program-Specific Assistant ProfessorDaisuke Miki
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Report an errorAbout the images
The top and research theme images are illustrative and were not taken at the lab. They are cropped from Wikimedia Commons images. Cropped CC BY-SA images are provided under the same CC BY-SA license as the original (version shown on each line).
- Top image: “Aira Caldera Relief Map, SRTM” Batholith / Public domain (cropped)
- Understanding the Reality of Giant Calderas: “Ito eruption Aira Caldera Japan” ChaseKiwi / CC BY-SA 4.0 (cropped)
- Subsurface and Seafloor Observations at Aira Caldera: “Plume from Sakura-jima, southern Japan (MODIS )” Jeff Schmaltz, MODIS Land Rapid Response Team, NASA GSFC / Public domain (cropped)
- Estimating Magma Supply: “Volcanic Ash Dunes” tarotastic on Flickr / CC BY 2.0 (cropped)
- Related lab (Crustal Fluid Lab): “Yugama Crater ( )” TANAKA Juuyoh (田中十洋) / CC BY 2.0 (cropped)
- Related lab (Volcanic Eruption Prediction Lab): “Big Blast at Sakurajima Volcano, Japan ( )” NASA Goddard Space Flight Center from Greenbelt, MD, USA / Public domain (cropped)
- Related lab (Earthquake Generation Mechanism Lab): “Optical fiber cable-07ASD” Asurnipal / CC BY-SA 4.0 (cropped)
- Related lab (Fault Physics Lab): “Subduction Zone Stratovolcano” Wade Greenberg-Brand/Paleontological Research Institution / CC BY-SA 4.0 (cropped)
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