The National Disaster Management Agency (NaDMA) has confirmed heightened seismic activity at the Kick-’em-Jenny submarine volcano, located off the coast of Grenada.
According to the University of the West Indies Seismic Research Center (UWI SRC), the episode of volcanic unrest began around 10:00 p.m. on Wednesday night, August 27, and continued into the early hours of Thursday. Within a 10-hour period, nearly 800 tremors were recorded, with the strongest measuring between magnitude 2.2 and 2.4. Authorities noted that the tremors have not been felt on land, and while seismic activity continues, the intensity has decreased since the start of the event.
The UWI SRC will continue to monitor the submarine volcano and provide updated analyses of the situation.
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.
The last period of unrest at KeJ occurred between 10th to 14th February 2024, during which over 3,400 events were recorded. The maximum magnitude then was 3.3, and no T-phases (explosion signals) were observed.
The National Disaster Management Agency will continue to monitor the situation and provide updates to the public.
Kick-’em-Jenny submarine volcano alert levels
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GREEN – Volcano is quiescent, seismic and fumarolic (steam vent) activity are at or below the historical level at this volcano. No other unusual activity has been observed.
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YELLOW – Volcano is restless; seismicity or fumarolic activity or both are above the historical level at this volcano or other unusual activity has been observed. (This activity will be specified at the time that the alert level is raised).
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ORANGE – Highly elevated level of seismicity or fumarolic activity or both, or other highly unusual symptoms. Eruption may occur with less than 24 hours’ notice.
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RED – Eruption is in progress or may occur without further warning.
