White Island Volcano, New Zealand
G. R. Roberts
Taal Volcano Erupting #2
Josephus Daniels
Mount Mayon Volcano #2
Josephus Daniels
Volcanic Structure
Spencer Sutton
Volcanic Eruption Types, Illustration
Spencer Sutton
Mount Pinatubo Caldera
Stephen & Donna O'Meara
Mount Pinatubo Caldera #1
Stephen & Donna O'Meara
Mount St. Helens Erupts
David Weintraub
Mount St. Helens Erupts #1
David Weintraub
Taal Volcano Erupting #1
Josephus Daniels
Taal Volcano Erupting
Josephus Daniels
Mount Mayon Volcano
Josephus Daniels
Mount Mayon Volcano #1
Josephus Daniels
Raung Volcano, Indonesia
Jack Fields
Soufriere Hills Volcano Eruption
Stephen & Donna O'Meara
Halemaumau Crater, Hawaii #1
Douglas Peebles
Sulfur Fumes
Photo Researchers
Ash Eruption, Kilauea Volcano #2
Stephen & Donna O'Meara
Kilauea Volcano
Stephen & Donna O'Meara
Ash Eruption, Kilauea Volcano
Stephen & Donna O'Meara
Ash And Steam Eruption At Kilauea
Stephen & Donna O'Meara
Kilauea Volcano #2
Stephen & Donna O'Meara
Ash And Steam Eruption At Kilauea #1
Stephen & Donna O'Meara
Ash And Steam Eruption At Kilauea #2
Stephen & Donna O'Meara
Ash Eruption, Kilauea Volcano #1
Stephen & Donna O'Meara
Pahoehoe Lava #1
David Hosking
Pahoehoe Lava #2
David Hosking
Halemaumau Crater Erupting
Greg Dimijian
Halemaumau Crater, Hawaii #3
Douglas Peebles
Halemaumau Crater, Hawaii #2
Douglas Peebles
Lava Flowing To The Sea
Phil Degginger
Active Volcano Mt. Pavlof
Carleton Ray
Bubbling Mud, Solfatara Crater, Italy
James Stevenson / Dorling Kindersley
Volcano Alcedo, Galapagos
Miguel Castro