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Ocean-bottom seismometer

Seismic Activity in Yellowstone

Paris Smalls (right), a graduate student in the MIT-WHOI Joint Program, steadies an ocean-bottom seismometer (OBS), while WHOI engineer Tim Kane sets the anchor before it is deployed into Yellowstone Lake. This was the first time scientists adapted OBSs to detect motions on the bottom of a freshwater lake. WHOI scientist Rob Sohn is leading a multiyear expedition that is using technology developed for the deep ocean to investigate the hidden fount of hydrothermal activity going on beneath the surface of Yellowstone Lake. The Hydrothermal Dynamics of Yellowstone Lake project is funded by the National Science Foundation. (Photo by Rob Sohn, Woods Hole Oceanographic Institution)


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