Elevated seismic activities recorded at underwater volcano in Grenada

February 12, 2024
SeaBeam image of Kick-’em-Jenny showing craters and domes. Contributed photo

More than 3000 tremors have been recorded in Grenada as a result of elevated activity at the Kick’-em-Jenny Submarine Volcano, the National Disaster Management Agency (NaDMA) said Monday.

It said that the tremors began on Friday and ceased on Sunday.

NaDMA said that the University of the West Indies, Seismic Research Centre (UWI SRC) has advised of increased seismic activity between Friday and early Sunday morning.

“The count of events up to that time was 3,400, with the largest measuring magnitude 3.3,” the agency said in a statement, adding that the activity subsided in magnitude and frequency to almost a complete stop.

“It should be noted that the level of activity at the Kick’-em-Jenny Submarine Volcano can either increase, decrease, or remain at normal readings,” the release advised, adding that  the UWI SRC will continue to monitor the situation and provide updated analyses of the situation.

There are currently four fully functional seismic stations in the north of Grenada monitoring Kick’-em-Jenny on a twenty-four-hour basis.

“Based on the information from UWI SRC, the alert level for Kick’-em-Jenny remains at Yellow. This means that all marine interests should maintain the exclusion zone of 1.5 km,” NaDMA said.

NaDMA communications officer, Ruth Roberts-Jacob, said  “for us that means that conditions have not changed”.

A yellow leave means that the volcano is restless, seismicity or fumarolic activity or both are above the historical level at this volcano or other unusual activity has been observed.

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