30 Years in the Life of an Active Submarine Volcano: A Time-Lapse Bathymetry Study of the Kick-‘em-Jenny Volcano, Lesser Antilles.

Abstract

Kick-’em-Jenny is a submarine volcano located near Grenada in the Lesser Antilles. In 1939 a major eruption sent volcanic material up to 300 m into the air, signalling the potential growth of a new island. Seismometers have recorded further activity approximately once a decade, but these events are rarely observed directly. We therefore understand little about what is happening at the volcano 190 m below the sea surface. In our study we conducted bathymetric surveys of the volcano in 2016 and 2017. We combine this with 4 previous surveys of the volcano, made between 1985 and 2014, covering a number of these periods of unrest.