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Hori-Ichimura-Lalith-Fujita Lab
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A computational science lab that uses supercomputers to calculate earthquake shaking and damage.
AboutAbout the lab
Merging real and virtual space on supercomputers
The Ichimura-Lalith-Fujita Lab studies computational science and high-performance computing methods for solving problems in earthquake engineering and seismology.
Using supercomputers, the lab calculates urban earthquake shaking and crustal deformation through large-scale simulations.
The lab also works on incorporating artificial intelligence into physics simulations, and on simulations that reproduce evacuation and economic activity.
The lab carries out joint research with research institutions and computer manufacturers in Japan and abroad.
Key terms
- High-performance computing
- Techniques for drawing out the full performance of supercomputers and similar machines in order to solve enormous calculations quickly
- Finite element method
- A computational method that divides the ground or a building into many small elements and finds the behavior of the whole from the deformation and force balance of each element
- Multi-agent
- A method of reproducing each person or company inside a computer as an "agent" that makes its own decisions and acts on them
NewsLab news
A master's student received the Furuichi Award for an outstanding master's thesis in the Department of Civil Engineering
A doctoral student received the Next-Generation Researcher Award of the Fugaku Program for Accelerating Research Outcomes
The Department of Civil Engineering held an information session and lab introductions for prospective graduate students
A doctoral student received the Dean's Award of the Graduate School of Engineering
ResearchResearch themes
The lab develops and applies computational science and high-performance computing methods to solve problems in civil engineering fields such as earthquake engineering, as well as in solid earth science and seismology, from both physical and socioeconomic perspectives. It aims to create a new kind of computational science that merges real and virtual space on computers such as supercomputers.
*Illustrative imageEarthquake Simulation of Cities and the Earth's Crust
In collaboration with RIKEN and other institutions, the lab works on earthquake simulations using the K computer and Fugaku. It also studies finite element methods for calculating urban shaking, crustal deformation analysis, and mesh generation methods.
*Illustrative imageEarthquake Simulation Incorporating Artificial Intelligence
Together with research institutions and companies in Japan and abroad, the lab develops methods that use artificial intelligence to estimate earthquake damage, as well as fast simulations that calculate the ground and the structures above and below it together.
*Illustrative imageEvacuation and Economic Simulation
Using a multi-agent approach, the lab develops simulators for urban evacuation and for nationwide economic activity during disasters. It also works on a simulator that optimizes lifeline restoration plans.
*Illustrative imageIntegrated Simulation of Physical and Socioeconomic Systems
This research connects physics simulations that calculate earthquake shaking and structural damage with social and economic simulations that calculate the behavior of people and the economy, combining them into a single framework.
MembersFaculty
The members of the Ichimura-Lalith-Fujita Lab consist of faculty members, project researchers, academic specialists, and doctoral, master's, and undergraduate students.As of 2026
- ProfessorTsuyoshi IchimuraPublications ↗
- ProfessorLalith Maddegedara
- Associate ProfessorKohei FujitaPublications ↗
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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: “Minato City, Tokyo, Japan” David Kernan / CC BY 4.0 (cropped)
- Earthquake Simulation of Cities and the Earth's Crust: “Finite element mesh” Bruno Sudret / CC BY 4.0 (cropped)
- Earthquake Simulation Incorporating Artificial Intelligence: “Houses destroyed by 2016 Kumamoto Earthquake in Mashiki, Kumamoto, Japan” Minoru Ichinose / CC BY-SA 4.0 (cropped)
- Evacuation and Economic Simulation: “Crowd simulation, Covent Garden” Paul Donnellan / CC BY 3.0 (cropped)
- Integrated Simulation of Physical and Socioeconomic Systems: “Shiba-koen, aerial view on Tokyo Tower at dusk (Unsplash)” Kazuend / CC0 (cropped)
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