Fin Whale (IMAGE)

University of Washington

Fin Whale

Caption

A seismometer was inserted into a hole drilled in seafloor lava. Eight of these instruments were installed at an ocean spreading-center volcano 150 miles off Vancouver Island. A data recording device is enclosed in the yellow sphere. In three years of operation the network detected nearly 40,000 small earthquakes, and hundreds of thousands of fin-whale calls.

Credit

John Delaney and Deborah Kelley, UW (taken with remotely operated vehicle Jason)

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