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Volcanic Eruption Prediction Lab
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A lab that monitors and predicts volcanic eruptions, with Sakurajima as its main field site.
AboutAbout the lab
Tracking volcanoes from before the magma emerges to after.
The Volcanic Eruption Prediction Lab conducts multi-parameter observations of seismicity, ground deformation, video imagery, volcanic ash, and gas at volcanoes in southern Kyushu, including Sakurajima.
The lab conducts research on long-term assessment of volcanic activity, quantification of eruptions, short-term forecasting immediately before eruptions, and the prediction and real-time characterization of volcanic ash dispersal and deposition.
Key terms
- Eruption prediction
- Knowing in advance when and how a volcano will erupt.
- Infrasound
- Pressure waves in the air generated by events such as eruption explosions.
- Phreatic eruption
- An eruption caused by underground water being heated and suddenly expanding.
- Volcanic ash
- Fine rock particles ejected by an eruption.
ResearchResearch themes
Through multi-parameter observations of volcanoes in southern Kyushu, the lab studies long-term assessment of volcanic activity, eruption quantification and short-term forecasting, and prediction of ash dispersal and deposition.
*Illustrative imageChasing magma from before it emerges to after
At volcanoes in southern Kyushu including Sakurajima, the lab uses multi-parameter observations of earthquakes, ground deformation, video, volcanic ash, and gas to study long-term assessment of volcanic activity, eruption quantification, short-term forecasting, and the prediction and real-time characterization of ash dispersal and deposition.
*Illustrative imageHow Sakurajima's explosive eruptions work
The lab investigates the source process of explosion earthquakes accompanying Vulcanian eruptions at Sakurajima, using inversion analysis of long-period and very-long-period seismic waveforms together with infrasound signals (collaborative research).
*Illustrative imageEruption precursors and estimating erupted volume
The lab tracks the intrusion of hydrothermal fluid that preceded the 2018 phreatic eruption of Kusatsu-Shirane volcano using volcanic tremor, and estimates the amount of ash erupted from infrasound observations.
*Illustrative imageTransport and deposition of volcanic ash
The lab has built an observation network at Sakurajima to measure the amount of ashfall deposited on site, and has also developed a model, Tephra4D, that simulates ash transport and deposition at high resolution.
MembersFaculty
- ProfessorHaruhisa Nakamichi
- Associate ProfessorTaishi Yamada
- Assistant ProfessorKeigo Yamamoto
- Assistant ProfessorKosei Takishita
- Project ProfessorMasayuki Maki
- Project ProfessorTetsuo Kobayashi
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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: “Big Blast at Sakurajima Volcano, Japan ( )” NASA Goddard Space Flight Center from Greenbelt, MD, USA / Public domain (cropped)
- Chasing magma from before it emerges to after: “Kagoshima Bay” Ray_go / CC BY-SA 3.0 (cropped)
- How Sakurajima's explosive eruptions work: “Fimmvorduhals dawn” Boaworm / CC BY 3.0 (cropped)
- Eruption precursors and estimating erupted volume: “ISS-34 Sakurajima Volcano in Kyushu, Japan” NASA / Public domain (cropped)
- Transport and deposition of volcanic ash: “Volcanic Ash from Mount St Helens - GeoDIL 460” Nessa Eull / CC0 (cropped)
- Related lab (Crustal Fluid Lab): “Yugama Crater ( )” TANAKA Juuyoh (田中十洋) / CC BY 2.0 (cropped)
- Related lab (Large-Scale Eruption Lab): “Aira Caldera Relief Map, SRTM” Batholith / Public domain (cropped)
- Related lab (Pre-Disaster Information Lab): “Global Landslide Hazard Distribution ( )” SEDACMaps / CC BY 2.0 (cropped)
- Related lab (Earthquake Generation Mechanism Lab): “Optical fiber cable-07ASD” Asurnipal / CC BY-SA 4.0 (cropped)
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