La Soufrière Volcano Alert Level Now At Yellow Level

Present La Soufrière Alert Level:YELLOWThe La Soufrière Volcano is restless. Seismicity and/or fumarolic activity are above the historical level at the volcano, or other unusual activity has been observed. This unusual activity will be specified at the time that the alert level is raised. This is level two of four.

After 260 days at Orange Level, the alert level of the La Soufrière Volcano has been lowered to Yellow.

A yellow alert level means the volcano is restless, and seismic or fumarolic activity is above the historical level at the volcano.

The Alert Level for the La Soufrière Volcano reflects the status and activity of the volcano. It consists of four levels, increasing in severity: green, yellow, orange, and red.

Activities at the volcano have been low and reduced significantly over the past few months since the last explosive eruption on 22nd April 2021.

All communities that evacuated following the evacuation order that was given on 8th April 2021 can now return home.

According to St. Vincent and the Grenadines National Emergency Management Organization, access to the volcano’s summit remains restricted.

Based on the latest scientific advisory issued by the University of the West Indies Seismic Research Centre (UWI SRC) on September 14th, seismic activity at La Soufrière, St Vincent, has remained low since the tremor associated with the explosion and ash venting on 22 April.

They added the current activity is consistent with a period of unrest after an eruption. This can continue for weeks to months. While volcanic activity has been on a decline, there is the continued presence of near-surface hot spots, daily seismic activity, and persistent degassing.

The UWI SRC has not observed any lahar signals recently, and work has been completed on all seismic stations.

The SRC also advises those to visit the International Volcanic Hazard Health Network for volcanic ash information and their YouTube channel for information on lahars.

Volcanic Hazard Map for the La Soufrière Volcano, St. Vincent (UWI SRC/NEMO)
Volcanic Hazard Map for the La Soufrière Volcano, St. Vincent (UWI SRC/NEMO)

According to the UWI SRC, the volcano continues to erupt. Its pattern of seismic activity over the last few days is typical of the growth and destruction of lava domes. Similar to or larger, explosions with accompanying ashfall can occur with little or no warning impacting St Vincent and neighboring islands.

The alert level remains red. The National Emergency Operations Center continues to be fully functional, operating on a twenty-four-hour, around-the-clock basis. NEMO will continue to provide regular updates as they continue to monitor the Volcano.

Official information will originate from St. Vincent and the Grenadines National Emergency Management Organization and the University of the West Indies Seismic Research Center.

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