Yellowstone caldera.

The shivering Yellowstone

This is just a brief little post on Yellowstone to make everyone happy that is based mainly on what GeoLurking wrote in the comment field on the previous post. First of all I would like to say that the activity behind yesterdays M4.8 earthquake is an ongoing process that has been running at least since…

A high-temperature hydrothermal vent in the Kolumbo submarine crater, discharging gases. Photograph from NOAAs expedition in 2006 in the Aegean Ocean.

Kolumbo Volcano – Theras younger brother

Kolumbo is an active submarine volcano in the Aegean Sea, about 300  7 km northeast of Cape Kolumbo, Santorini  Island.  It is the largest of a line of about twenty submarine volcanic cones extending to the northeast from Santorini.  It is about 3 km in diameter with a crater 1.5 km across.  Previous to the newly discovered Tamu Massif volcano in the northern…

Wikimedia commons

White Island – Whakaari

Mike Ross mentioned that hydrothermal activity on White Island is above normal scales. News Volcanic Alert Bulletin WI-2013/02 – White Island Volcano http://t.co/GX3JAEdu The volcano had shown some unrest last year, by chance (?) on the same day as Tongariro. Check …Eruptions at Tongariro & Whaakari (White Island) and 1 million viewers! Author Carl August 7th. Bruce Stout…