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Earth Measurement Lab
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A lab that uses large volumes of data to investigate how earthquakes occur from new perspectives.

AboutAbout the lab
Investigating earthquakes from a new angle.
The Earth Measurement Lab conducts large-scale analysis of seismic motion and crustal deformation data, develops analytical methods, and launches new observations, in order to clarify the temporal and spatial characteristics of crustal activity.
Through this work, the lab aims to elucidate the processes by which earthquakes occur and the settings where they occur, and to contribute to predicting seismic hazard.
Key terms
- Slow earthquake
- A phenomenon in which a fault slips much more slowly than in an ordinary earthquake
- Seismic hazard
- How strong the shaking could be at a given location, and with what probability it will occur
- Aftershock
- An earthquake that occurs in the area around a large earthquake and follows it
ResearchResearch themes
Through large-scale analysis of seismic motion and crustal deformation data, method development, and new observations, the lab clarifies the processes by which earthquakes occur and the settings where they occur.
*Illustrative imageInvestigating Earthquakes from New Angles
To clarify the spatiotemporal characteristics of crustal activity, the lab carries out large-scale analysis of seismic motion and crustal deformation data, develops new methods, and launches new observations, in order to elucidate the processes by which earthquakes occur and the settings where they occur.
*Illustrative imageSlow Earthquakes and Statistical Models of Seismicity
The lab's work includes developing a statistical model of aftershocks that incorporates earthquake triggering by slow slip, comparing activity models of low-frequency earthquakes, writing a review of slow earthquakes in the Japan Trench, and detecting earthquake swarms in the Hikurangi Trench.
MembersFaculty
- Associate ProfessorTomoaki Nishikawa
VoicesStudent voices
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Fault Physics LabDisaster Prevention Research Institute, Research Center for Earthquake HazardsSolid Earth scienceThe information on this page is compiled by the LabLog team from the lab's public information and interviews. For corrections or removal requests, please contact LabLog, not the lab.
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: “M≥ ) Earthquakes in the Ryukyu Arc” Matt.chw / CC BY-SA 4.0 (cropped)
- Investigating Earthquakes from New Angles: “Early Earthquake Warning Systems Map” Yacine Boussoufa / CC BY-SA 4.0 (cropped)
- Slow Earthquakes and Statistical Models of Seismicity: “2016 Central Italy earthquake aftershock distribution” Phoenix7777 / CC BY-SA 4.0 (cropped)
- Related lab (海域地震研究領域): “Ocean Bottom Seismometer - Hongo Campus, the University of Tokyo - DSC04878” Daderot / CC0 (cropped)
- Related lab (地震情報研究領域): “Seismic Station ( )” daryl_mitchell from Saskatoon, Saskatchewan, Canada / CC BY-SA 2.0 (cropped)
- Related lab (内陸地震研究領域): “Gomura Fault Ikunouchi Site C” さか
おり / CC BY-SA 4.0 (cropped) - Related lab (断層物理研究領域): “Subduction Zone Stratovolcano” Wade Greenberg-Brand/Paleontological Research Institution / CC BY-SA 4.0 (cropped)
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