Volcano & eruption special tours Tours dedicated to usually a single volcano currently in eruption. These trip, sometimes offered only last-minute through our newsletter, are among the most adventurous and most popular in our program.
Earthquakes near Volcanoes Our world-wide map continuously detects shallow earthquakes near volcanoes. These could be early signs of unrest and often precede eruptions.
Divergent plate boundaries in oceans Two ocean plates move apart from each other. Hot upwelling mantle material forms magmas that continuously produce new oceanic crust. An ocean widens.