Kick 'em Jenny is a 1300m submerged volcano residing about 8km off the Grenada coast and the only live submarine volcano in the West Indies. In 1939 an eruption here rose 275m above the ocean surface (see image below fold). Eruptions have been both explosive and simply lava flows and domes in the summit crater. Nearby residents often hear deep rumbling noises. A team from WHOI installed a seismic monitor over Jenny 250m below the surface. The instrument package will be moored to a surface buoy with a high-frequency radio (and solar panels) to send data to the village of Sauteurs on Grenda.
Image from the Global Volcanism Program and University of the West Indies Seismic Research Unit
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Over Kick em Jenny is an interesting place to be. I was on the cruise that discovered Kick em Jack:
http://www.uwiseismic.com/KeJ/Cruise2003/kej2003cruise.html
Is this baby being monitered primarily because of the hazard it presents? Or is it just a good place to study sub-surface volcanism?