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Images: Seismometer Deployed Atop Underwater Volcano

(Uri ten Brink, U.S. Geological Survey)

A new buoy transmits real-time seismic data from the Kick 'em Jenny volcano off Grenada. (Spahr C. Webb, Lamont-Doherty Earth Observatory)

The Real-Time Offshore Seismic Station has three main elements: an ocean-bottom seismometer; a stretch, electrically wired mooring cable; and a buoy with radio transmitters that send data to shore. (E. Paul Oberlander, Woods Hole Oceanographic Institution)