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Tobita Lab (Earthquake Engineering and Disaster Prevention Group)
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The lab observes building vibrations to nurture earthquake-resilient communities and people.
AboutAbout the lab
Measuring vibrations to prepare for earthquakes
The Tobita Lab studies earthquake engineering and community disaster prevention, centered on observing and monitoring building vibrations.
Together with the Mori Lab and the Nagae Lab, it forms the Earthquake Engineering and Disaster Prevention Group, which trains students as a research division of architectural structural engineering.
To reduce earthquake damage, the group works on three aspects: research (koto), systems and devices (mono), and raising disaster-prevention awareness and education (hito).
Key terms
- Strong-motion observation
- Recording strong earthquake shaking with seismometers placed in buildings and on the ground
- Monitoring
- Measuring continuously over a long period to keep watch on changes in condition
- E-Defense
- A large shake table that can shake full-scale buildings to study how they fail
ResearchResearch themes
As a member of the Earthquake Engineering and Disaster Prevention Group, the lab conducts observation and monitoring of building and ground vibrations, and research for community disaster prevention. Building on observations and vibration experiments in a wide variety of buildings, it also develops teaching materials that raise disaster-prevention awareness.
*Illustrative imageObserving Vibrations in a Wide Variety of Buildings
The lab carries out strong-motion observation, vibration measurement, and vibration experiments in many types of buildings, including reinforced concrete buildings, base-isolated buildings, modern-era architecture, and traditional timber buildings. The records are used to analyze how each building shakes, and are also compiled into a database that is used to evaluate seismic performance.
*Illustrative imageLong-Term Monitoring of High-Rise Buildings
In preparation for long-duration strong shaking, the lab aims to develop technology that detects deterioration and damage in buildings. It observes high-rise buildings continuously starting from the construction stage, and also studies changes in vibration behavior during demolition and damage evaluation through E-Defense experiments.
*Illustrative imageNew Developments in Building Observation
Using new methods, the lab observes phenomena that are not yet well understood, such as soil-structure interaction and three-dimensional shaking. It is also working to increase the number of observation points in buildings and ground as much as possible, so that damage can be grasped quickly when an earthquake occurs.
*Illustrative imageDeveloping Teaching Materials for Learning Disaster Prevention
The lab develops teaching materials for learning about disaster prevention, including the vibration experiment kit "Bururu." By building, shaking, and breaking models, students experience for themselves and learn clearly about the danger of earthquakes, the importance of seismic resistance, and the key points of seismic strengthening.
MembersFaculty
The Earthquake Engineering and Disaster Prevention Group, to which the Tobita Lab belongs, consists of faculty members, technical staff, technical assistants, and students in the doctoral program, the master's program, and the undergraduate program.As of 2026
- ProfessorJun Tobita
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: “001-EPF-03” Shustov / CC BY-SA 3.0 (cropped)
- Observing Vibrations in a Wide Variety of Buildings: “CM 2 monitoring building” ФГУП «НПЦ АП имени академика Н. А. Пилюгина» / CC BY-SA 3.0 (cropped)
- Long-Term Monitoring of High-Rise Buildings: “Skyscraper Construction in Frankfurt, Germany” Spinarak / CC0 (cropped)
- New Developments in Building Observation: “Loomis Seismograph Station, Lassen Volcanic National Park, in June 2020” Frank Schulenburg / CC BY-SA 4.0 (cropped)
- Developing Teaching Materials for Learning Disaster Prevention: “Students practice earthquake drill. ( )” Department of Foreign Affairs and Trade / CC BY 4.0 (cropped)
- Related lab (Mori Lab (Earthquake Engineering and Disaster Prevention Group)): “Seismic isolation in Egekent IzBAN station, Izmir” Ayratayrat / CC BY-SA 4.0 (cropped)
- Related lab (Tashiro Lab (Disaster Mitigation Research Center)): “Flood embankment along the River Ouse - geograph.org.uk - 8293711” DS Pugh / CC BY-SA 2.0 (cropped)
- Related lab (Nagae Lab (Earthquake Engineering and Disaster Prevention Group)): “Lunch atop a Skyscraper” 作者不詳 / Public domain (cropped)
- Related lab (Structural Engineering, Materials Engineering, and Disaster Prevention (Fuminobu Ozaki) Lab): “Tu braunschweig panel furnace preparation” Achim Hering / CC BY 3.0 (cropped)
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