Dionisio Pulido. That's the couple whose cornfield became the Paricutin volcano in one afternoon.
I would hope the USN checked out the geology of the mountain in question.
Agreed, but you have to admit that it isn't bloddy likely that NO ONE would have noticed the formation of a new 6,000 foot sea mount. It had to have some seismic effects that someone, somewhere, would have said "hey, look at this!"
By the same token, I think that the Navy should launch a program to update their charts, inch by inch, with the absolutely most precise possible instrumentation possible. Not just in this area, but worldwide.
We should have hyperaccurate surveys of the Earths surface, including under the oceans, that are constantly being updated and checked. That should be a basic part of our government's scientific and technological responsibility. As has been proven repeatedly, this type of investment truly returns a hundred fold what we put into it.