DAN HOLDSWORTH WRITES:
Jon,
Having read your story about the phantom black dog, I decided to go looking for an online map of geological faults and similar data. I found http://portal.onegeology.org/
Mooching around on this I happened to discover that Mawnan Old Church is sitting slap bang on top of a geological fault. Now, Google Earth has a layer that shows where there have been earthquakes in the past.
There was an earthquake just a little away from Mawnan in July 23, 1966 01:50:04 UTC at a depth of 33.00 km (20.51 mi). So, that fault was active then and is very likely still creeping a bit to this day, and very likely still churning out geomagnetism and the like.
Interesting, yes?
(Oh, and there are geological faults shown near Somerset, but nothing much shown near the northern bit).
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