Interview with Professor Kanazawa

Interview with Professor Shinohara

Detecting mega-earthquakes on the seafloor

Aftershocks of the 2011 Tohoku earthquake

Air gun that emits elastic waves in seawater

Air gun that emits elastic waves in seawater

OBS (ocean bottom seismometer)

OBS control device (seismic sensor)

Recorder of
seismometer in
OBS

Interview with Professor Utada

Electromagnetic tomography

Ocean Bottom Electromagneto-
meter (OBEM)

Changes in the thickness of the lithosphere over geological time