Amid indicators of waning depth within the eruptions of the La Soufrière volcano in comparison with final weekend’s fury, the area’s main seismologist Friday warned Barbadians that they’re removed from out of the woods from the ash fallout.
The replace got here throughout the Authorities’s newest press briefing on the dual crises – the state of coronavirus outbreak and Friday’s volcanic eruption amid a nationwide marketing campaign to clear away tonnes of ash from final weekend’s blast.
UWI Seismic Analysis Centre director Dr Erouscilla Joseph mentioned though the volcano has proven a relative slowdown in explosive eruptions in neighbouring St Vincent, Barbadians shouldn’t change into complacent, as eruptions can proceed for some weeks.
Dr Joseph mentioned: “When it comes to the prognosis, we’re saying the volcano continues to erupt, though the explosive exercise is considerably diminishing in depth, that doesn’t imply that it has ended at the moment.
“Its present sample of seismicity [does] point out there may be periodic [signs] of a lava dome, however this has not been confirmed. We hope to see satellite tv for pc photos to assist us see how large the dome is rising if there’s a dome, however what can occur is that this dome is frequently destroyed by explosions, such because the one which occurred [Friday] morning.”
Dr Joseph additionally revealed that assessments have been additionally performed within the waters of St. Vincent and the Grenadines for Sulphur Dioxide (SO2) flux; this gasoline is usually examined for after main volcanic eruptions to gauge the quantity of contemporary magma nonetheless having the ability to make it to the floor to trigger an eruption.
This, together with different information coming from monitoring stations across the web site, factors to the volcano going via a type of deflation, and a attainable lessening in depth, based on the UWI seismologist.
She mentioned: “We’re additionally now seeing, a sample of deflation from the Floor Deformation Stations; that’s across the volcano, [and] there are three stations that now we have been capable of get the info from constantly that’s monitoring the deflation… “Consider a balloon, when magma comes up and it fills this balloon, it expands, and when the balloon bursts and that magma comes out onto the floor, we get deflation.
“Proper now we’re seeing the deflation sign, which implies that all the pieces that’s in there, is making an attempt to get out.”