Best Aleutians

Located within the Okmok caldera in Alaska, these volcanic gas vents are notable for persisting through multiple eruptions, including a major explosive event in 2008.

Shishaldin fumaroles are gas vents in Alaska's Shishaldin summit crater, notable on the Aleutians' highest volcano during its 2023-2024 eruption.

The Akutan fumaroles are vigorous geothermal vents located on Akutan Island in Alaska, emitting acidic sulfur gases that highlight the volcano's ongoing magmatic activity.

Cleveland fumaroles are persistent gas-emitting vents on Mount Cleveland in Alaska, USA, a remote Aleutian volcano known for frequent explosive eruptions.

The Isanotski fumaroles are geothermal gas vents located on Unimak Island in Alaska, notable for emitting steam from the ridges of a stratovolcano with poorly documented eruptive history.

The Westdahl fumaroles are steaming volcanic vents located on Unimak Island in Alaska, noted for emerging following significant lava flows and eruptions during the late 20th century.

The Kanaga fumaroles are persistent volcanic gas vents located on Kanaga Island in Alaska, notable for emitting sulfur and steam from the summit crater of an active stratovolcano.

Situated within a summit crater in Alaska's Aleutian Islands, the Great Sitkin fumaroles are geothermal vents that release acidic gases from a frequently erupting stratovolcano.

Located on Seguam Island in Alaska, these volcanic gas vents are notable for emitting continuous steam plumes from the crater of an active stratovolcano that erupted in the 1990s.

The Amukta fumaroles are steaming geothermal vents located on Amukta Island in Alaska, notable for releasing volcanic gases from the slopes of a highly active stratovolcano.

Located on Gareloi Island in Alaska's Aleutian chain, these fumaroles are steaming geothermal vents that contribute to the regular sulfur emissions of this active stratovolcano.