On Sunday, 2 February 2014 23:22:17 UTC, Joe Egginton wrote:
A 30ft sinkhole has swallowed a car in High Wycombe, from the photos

there's no water at the bottom so it can't be an underground stream. I

don't think there's any mines around there. So what caused the sink hole?



http://www.bbc.co.uk/news/uk-england...herts-26010192

Fairly common in any severe volcanic spell.
Usually in such spells there is also a plethora of flood stories.
The rest, as they say, is natural history.