Last month, prompted by VC-reader VerboselyLaconic’s observation about the volcanoes of Colombia and Ecuador seemingly exhibiting a trend to suffer flank collapses in a preferred direction, we invited our readers to search worldwide in order to establish whether or not this was a general observation or if it only applied to the volcanoes mentioned by…

A couple of days ago, VC reader VerboselyLaconic posted an interesting observation about the Andean Volcanos of Equador and Columbia. Here is what he said: It seems almost a rule that when they erupt BIG, it is a lateral blast, and all but a few of them blow in a westerly direction. Now, I have…