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Monday, 17 May 2021 03:56 GMT

Explosion at La Soufriere continues


(MENAFN - Caribbean News Global)

By Caribbean News Global contributor

KINGSTOWN, St Vincent — Explosion at #LaSoufriere today at - 6:15am. Eruption column estimated at roughly 8,000 m high with an #ash cloud seen moving towards the west of #StVincent . The period between explosions has now lengthened to more than 40 hours said UWI Seismic Research Centre .

La Soufriere St Vincent Scientific update - 16/04/21 6:00 am

  • Seismic activity at La Soufrière, continued as before with a near-constant swarm of long-period and hybrid earthquakes.
  • There was one band of low-level tremor at 9 pm on 15 April which lasted about 40 minutes and may have been associated with a small increase in venting.
  • The first successful measurements of sulphur dioxide (SO2) flux at La Soufriere were undertaken along the west coast and yielded an average SO2 flux of 809 tons per day.
  • SO2 is a volcanic gas and flux is the measurement of mass of SO2 in the plume (a stream of gas vented by the volcano).
  • The presence of SO2 tells us that fresh magma from a deeper source is being degassed indicating that the eruption is continuing.
  • The volcano continues to erupt although explosive activity appears to have ended at this time.
  • Its current pattern of seismic activity may indicate growth of a lava dome, but this has not yet been confirmed.
  • Explosions with accompanying ashfall, of similar or larger size, could restart in the future impacting St Vincent and neighbouring islands.
  • The volcano is at alert level Red
  • Visit the GNS Science website for Global Ash Impact posters. The latest research-informed material for concise best practice information for critical infrastructure managers to effectively prepare for, respond to, and recover from ash-producing volcanic eruptions.
  • Visit the International Volcanic Health Hazard Network  for volcanic ash information and resources: 

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