No, each volcano has its own plumbing system, and they operate independently. The eruption at La Soufriere cannot trigger eruptions at other volcanoes like Mt. Pelee or Kick-’em-Jenny because they are not connected.
Although very unlikely at this time, small tsunamis can be generated if large amounts of material enter the sea. This large-scale movement of material can be caused by a flank collapse or lateral explosion.
Yes. Wind will carry ash further away from the volcano with time. Surface or sea level winds will carry ash west and south to the Grenadines and Grenada. In the upper atmosphere winds will take ash north and east. Islands like Martinique and Dominica may receive some ash, but the majority will go out into the Atlantic Ocean or the Caribbean Sea.
Eastern Caribbean volcanoes produce what scientists call Andesitic lavas that are very sticky. They form domes and when they erupt explosively produce lots of ash, debris avalanches and projectiles. Volcanoes like those in Hawaii produce Basaltic lavas that are very runny. These volcanoes often generate lava flows with fewer projectiles.
As the fine particles in the ash column rapidly collide there is a buildup of static electricity. We see the rapid discharge of this electricity as lightning.
Yes. There has been significant ashfall across mainland St. Vincent. With rain, ash deposits will be swept into rivers and streams forming lahars or mudflows. These flows usually have a high temperature and can carry large amounts of volcanic debris. These can happen months after the eruption has ended.
Yes, pyroclastic density currents (PDCs) or pyroclastic flows have been observed on the north-western flanks of the volcano. They are usually caused by the collapse of the eruption column, a dome collapse or a lateral blast.
In most persons volcanic ash will only irritate the eyes and respiratory system. Persons with pre-existing conditions like asthma will be at increased risk to be negatively affected.
This is the highest alert level. At alert level (Red) an eruption is in progress or may occur without warning. Civil authorities are continuously advised by scientists. Authorities begin or continue evacuation as necessary and issue regular radio, television and social media updates.
This eruption appears to be larger than the 1979 eruption in terms of material put into the into the atmosphere. Its explosivity is more comparable to the 1902 eruption of the La Soufriere Volcano.