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No significant problems reported so far by the evacuees living there (SWMBO and I returned to the UK on 2021-09-22) other than perhaps 5cm of ashfall, the vast majority of which will not have settled on the dome. Everything inside is wrapped up well each time we leave because even 3 months of regular calima dust is tiresome to clean off the optics. The quakes have been far too small to damage anything.
The original vent is 3.1km due south. A subsequent one is about 500m closer to us. Both are the far side of a substantial ridge which protects us. Of course, if another vent opens up on the north side …
Our plan is to return in February. Kevin and I will doubtless have a much better idea then.
(added in edit) See https://britastro.org/observations/observation.php?id=20211017_203048_828e0db6c3bb0b61 for a recent image of the volcano and observatory. Inside the latest The Astronomer magazine is one taken a very few minutes after the start of the eruption.