Hydrothermal Vents on Google Maps

This is our second foray into subterranean (or should that be submarine) mapping today. However, whereas Greg's Cable Map maps the world's undersea telecommunications cables, Peter Aldhous' Google Map shows the locations of deep sea vents.Peter's map displays all known hydrothermal vent fields. The map uses color-coded map markers to show active and inactive vents. The map also shows plate