JpGU-AGU Joint Meeting 2017

Presentation information

[JJ] Oral

O (Public) » Public

[O-04] [JJ] Kitchen Earth Science -advantages of using thoughtful hands in experiments -

Sat. May 20, 2017 1:45 PM - 3:15 PM Convention Hall A (International Conference Hall 2F)

convener:Miwa Kuri(International Research Institute of Disaster Science, Tohoku University), Kei Kurita(Earthquake Research Institute,University of Tokyo), Ichiro Kumagai(School of Science and Engineering, Meisei University), Chairperson:Miwa Kuri(International Research Institute of Disaster Science, Tohoku University), Chairperson:Ichiro Kumagai(Meisei University)

2:00 PM - 2:15 PM

[O04-02] Laboratory Seismic Exploration Experiment for Education and Demonstration

*Osamu Kuwano1, Ayako Nakanishi1, Mikiya Yamashita1, Takatoshi Yanagisawa1 (1.Japan Agency for Marine-Earth Science and Technology)

Keywords:Analog experiment, Hydrogel, Seismic exploration, Image analysis

We developed a laboratory experiment to simulate a seismic refraction survey for educational purposes. The experiment is a tabletop scaled experiment using the soft hydrogel as an analog material of a layered crust. Therefore, we can conduct the seismic exploration experiment in a laboratory or a classroom. The softness and the transparency of the gel material enable us to observe the wave propagation with our naked eyes, using the photoelastic technique. By analyzing the waveforms obtained by the image analysis of the movie of the experiment, one can estimate the velocities and the structure of the gel specimen in the same way as an actual seismic survey. We report details of the practical course and the public outreach activities using the experiment.