Geology resources
Geology resources

Volcanoes, Volcanoes of the world

Alaska Volcano Observatory

Global tectonics - Natural hazards

Age of Earth - Abundance of radioisotopes in the Earth's crust

Geological time scale at wikipedia - compact diagram

Snowball Earth, Plate tectonics at wikipedia

Lisbon earthquake (Nov 1, 1755)

Old Faithful
videocam, Mt. St. Helens Webcam

Mount Merapi, Richat structure

The planet at night, Lake Vostok

Carbon dioxide lake, Lake Nyos