St Vincent - Change In Seismic Activity At La Soufrière, Earthquakes Reported

25th March 2021

By News784

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Monitoring scientists at the Belmont Observatory led by scientists from The UWI Seismic Research Centre (SRC) have noted a change in seismic activity associated with the ongoing eruption of the La Soufrière Volcano.

Up until 23 March 2021, the seismic activity had been dominated by very small low-frequency events which were associated with the ongoing extrusion of the lava dome. These were almost always only recorded at the seismic station closest to the dome.

Starting at approximately 10:30 local time (14:30 UTC) on 23 March 2021, the monitoring network recorded a swarm of small low-frequency seismic events which lasted for about 45 minutes. These events were different from previous activity in that they were also recorded on other stations.

These events were probably associated with magma movement beneath the dome, although their depth cannot be determined. This is the first time that such a swarm has been seen since the seismic network was upgraded in early 2021.

Starting at 16:53 local time (20:53 UTC) on 23 March 2021, the monitoring network started recording volcano-tectonic (VT) earthquakes. These earthquakes are normally associated with underground fractures of the rock mass and are commonly generated by magma pushing through an unyielding rock mass.

The volcano-tectonic earthquakes were located beneath the volcano, at depths down to 10 km below the summit. The largest of these had a magnitude of 2.6. Some of them have been reported felt by people living in communities close to the volcano such as Fancy Owia and Sandy Bay.

Do you support plans to reopen the island to cruise tourism in the coming months?

Yes
No
Making sure each and every body get vaccinated including the captains of the ship
Vaccinations along with on board rapid testing prior to getting off in port/s.
Because weather u take the vaccine or not u can still get covid 19
All should be tested before aloud to come on island.
If they Can for criuse they Can open thé boarders i wasnt to Come home with no stress
Only if they staying on board the ship
I have one question you'll can fool some people but not all. People are to blind to see the truth no successful corona vaccine has ever been develop because these viruses always mutated. So don't think the lockdown will stop until we put an end to it. Slavery was never abolished it was just modernize.
The country should open to our locals and other Caribbean person and reopen for the rest of the world in December
There is nothing wring in openjng for cruiseships,how ever lucians need their freedom
Other

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At the present time the volcano-tectonic earthquakes continue, with the numbers of events fluctuating. The very-small dome-extrusion events also continue.

The National Emergency Management Organisation (NEMO) wishes to inform the public that earthquakes associated with the ongoing eruption of the La Soufrière Volcano continue to occur from time to time and some of the largest ones may be felt. The alert level remains at Orange and no evacuation order or notice has been given.

However, NEMO is encouraging residents especially person living in communities close to the volcano (i.e., the Red and Orange Volcanic Hazard zone), to heighten their preparedness in the event that it becomes necessary to evacuate at short notice.

The La Soufrière Volcano continues to be closely monitored by a locally based team consisting of scientists from the Soufriere Monitoring Unit (SMU), The UWI Seismic Research Centre (SRC) and the Montserrat Volcano Observatory (MVO).

This team work closely with an extended group based at the SRC (Trinidad) and MVO (Montserrat). The Team Lead at this time is Vincentian Professor Richard Robertson. The monitoring network use a variety of techniques to monitor the volcano that are constantly being improved and upgraded.

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