divine intervention or not, some of us are interested in the nuts and bolts of HOW things get done rather than simply stopping all thought as soon as divine intervention is claimed. WHY did the red sea part - did god alter gravity locally to move water or was there a geological event (divine or not) which caused the area to drain?
if humans were created by divinity then you would assume if we weren't supposed to use our heads and wonder about these things the programmer would have not included this ability, unless of course it was expected that some of his minions on earth would actively work to suppress such tendencies in others.
I finally got around to checking my Usu reference. There was much interesting info at "Usu volcano, Japan", but I finally discovered the picture I remembered in one of the 8 volcano books I have read in the last few years. The source is "Volcanism" by Hans-Ulrich Schmincke, 2004, page 6. The photo shows an area of road and adjacent fence and plants which were elevated as much as 200 feet over a space about 2/5ths of a mile wide. The land is basically intact, except for a bunch of cracks across the road. This took place in 2000, at which time the volcano also erupted. I don't know if the bulge then deflated.