La Soufrière Volcano Update (17/04/2021)
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1. The swarm of long-period and hybrid earthquakes continued at La Soufrière.
2. The rate of occurrence of these earthquakes dropped significantly at about 8 pm on 16 April and has remained near-constant since. No episodes of tremor have been recorded in the last 12 hours
3. A revised picture (see figure above) has been constructed of the summit crater based on satellite images.
4. The new crater, measures approximately 900 m N to S and at least 750 m E to W.
5. The crater is thought to be at least 100 m deep (Raphael Grandin, IPGP) and is centred in the SW sector of the
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