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Urban Environmental Risk Lab
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The lab investigates the relationship between earthquake ground motion and the ground through observation.
AboutAbout the lab
Understanding ground motion and subsurface ground to protect buildings.
The Urban Environmental Risk Lab studies earthquake ground motion and the subsurface ground that greatly influences it.
A building is originally a shelter that protects people from the violence of nature, but once it collapses in an earthquake, it becomes a weapon that takes lives.
The lab believes that it is important not only to build structures that withstand ground motion but also to understand ground motion itself, and that the key to this is understanding the ground.
Based on earthquake observation data and on field observation of tiny ground vibrations (microtremors), the lab works on modeling subsurface structure and on ground motion simulation.
Key terms
- Ground motion
- The shaking of the ground caused by an earthquake. Even for the same earthquake, it varies greatly depending on the ground.
- Microtremors
- Tiny vibrations of the ground whose sources include traffic vibration and ocean waves.
- Sedimentary plain
- A plain with deep deposits of soft sediments. Many plains in Kyushu are of volcanic origin.
ResearchResearch themes
The lab works on solving a variety of problems and developing technologies related to earthquake ground motion and the subsurface ground that greatly influences it. It emphasizes drawing insights from observed facts, and uses both observations it carries out itself and data from public seismic observation networks.
*Illustrative imageGround motion characteristics of sedimentary plains
Many plains in Kyushu have deep deposits of soft volcanic sediments. Using earthquake and microtremor observation data, the lab investigates the characteristics of ground motion in such sedimentary plains, seeking insights that will help reduce future earthquake damage.
*Illustrative imageClarifying causes through ground motion simulation
Through ground motion simulation, the lab investigates why characteristic ground motions that greatly affect structures have occurred. It uses the characteristics of observed ground motion as clues.
*Illustrative imageModeling subsurface structure based on observation data
The lab works on developing methods to model subsurface structure from multiple types of observation data. In addition to earthquake records, it uses microtremors caused by traffic vibration and ocean waves, which it observes in the field.
MembersFaculty
- ProfessorTatsuo Kanno
VoicesStudent voices
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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: “Seismograph in Shimla House Pune” अक्षय विनायकराव तायडे / CC BY-SA 4.0 (cropped)
- Ground motion characteristics of sedimentary plains: “Rift Basin Fill” Page Quinton / CC BY-SA 4.0 (cropped)
- Clarifying causes through ground motion simulation: “Earthquake simulation truck in Yoyogi Park” Syced / CC0 (cropped)
- Modeling subsurface structure based on observation data: “Seismogram at Weston Observatory” Z22 / CC BY-SA 3.0 (cropped)
- Related lab (強
震動工学研究室): “Earthquake protectors” Shustov / CC BY-SA 3.0 (cropped) - Related lab (建築
デザインエンジニアリング学研究室): “Parametric designs” Sharan Sharma the clicker / CC BY-SA 4.0 (cropped) - Related lab (建築材料学研究室): “Beton Val Mulin AG Concrete plant, Switzerland (Ank Kumar, Infosys Limited) 01” Ank Kumar / CC BY-SA 4.0 (cropped)
- Related lab (持続建築エネルギー学研究室): “Reflection of Parque Cultural Paulista building in Avenida Paulista, Brazil” Wilfredor / CC BY-SA 4.0 (cropped)
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