Volcanoes
![The 2009 eruption of Alaska's Redoubt volcano.](https://cdn.mos.cms.futurecdn.net/FZojTuLD2EXNrDzPDApmL5-320-80.jpg)
The U.S. Geological Survey defines a volcano as a vent in Earth's surface, either on land or on the seafloor, from which molten rock called magma, as well as ash and gases, can erupt or ooze. Different types of volcanoes erupt in different ways, with some erupting spectacularly and others, most notably Hawaii's shield volcanoes, steadily oozing lava. There are different types of volcanoes, including stratovolcanoes, shield volcanoes and cinder cones, and different types of lava and other volcanic flows. Volcanoes can be active, dormant or extinct. Most of Earth's volcanoes are located along the Pacific Ring of Fire, where many of Earth's tectonic plates subduct beneath another plate. Currently volcanic eruptions cannot be predicted, though most of the big, active volcanoes are routinely monitored and authorizes warn when they think an eruption is likely. Read below for the latest news on volcano monitoring and research, current volcanic eruptions and to see amazing pictures of volcanoes.
Latest about Volcanos
![An underwater picture showing a rocky seafloor](https://cdn.mos.cms.futurecdn.net/u8H43zCpVL4XQvL9oyuxz6-320-80.jpg)
'This could be the origin of the Atlantis legend': Mountain that sank beneath the waves discovered off Canary Islands
By Hannah Osborne published
A large seamount with three inactive volcanoes that sank into the ocean millions of years ago off the coast of Lanzarote may have inspired the legend of Atlantis.
![A satellite image of a volcano puffing out a white cloud](https://cdn.mos.cms.futurecdn.net/Tp8DjerAtdZfzG2N5MBQRe-320-80.jpg)
'Smoking terror' volcano that destroyed city 400 years ago burps toxic cloud
By Harry Baker published
Earth from space A 2018 astronaut photo shows Nicaragua's active Momotombo volcano spitting out a cloud of toxic gas and steam just a few years after its latest eruption.
![An aerial view of the summit crater of Ol Doinyo Lengai volcano with white streaks of dried lava running down the slopes.](https://cdn.mos.cms.futurecdn.net/rv4xoR9anCHvVQgWJCGbSP-320-80.jpg)
Volcano in Tanzania with weirdest, runniest magma on Earth is sinking into the ground
By Sascha Pare published
Tanzania's outlandish Ol Doinyo Lengai volcano, the only volcano on Earth that is currently erupting carbonatite lava, has been sinking at a rate of 1.4 inches per year for the past decade.
![A person in a protective suit sticks a long measuring device directly into a lava flow](https://cdn.mos.cms.futurecdn.net/D8E2HaDwwHisEStJUFkaaM-320-80.jpg)
Weird new device measures how 'liquid' lava is
By Rebecca Owen published
A new device helps scientists measure lava viscosity during active flows.
![An aerial view of islands along the Aegean sea](https://cdn.mos.cms.futurecdn.net/abauJtStRob3BfjkXLR6VY-320-80.jpg)
An undersea eruption rocked the Aegean 520,000 years ago
By Molly Colleen McCanta published
Scientists discovered an unknown volcanic eruption that rocked the seafloor in the Aegean more than 500,000 years ago.
![A view of the Solfatara crater in Italy's Campi Flegrei volcano caldera with the Mediterranean Sea in the background.](https://cdn.mos.cms.futurecdn.net/hySFq3xhWTis9YCMi7pwJa-320-80.jpg)
Italy's Campi Flegrei volcano hit by 150 earthquakes in just 5 hours
By Sascha Pare published
Europe's awakening Campi Flegrei volcano experienced its biggest seismic swarm in 40 years, with 150 earthquakes rocking the region in southern Italy in the evening of May 20.
![An aerial picture of a volcanic fissure spewing lava in Iceland.](https://cdn.mos.cms.futurecdn.net/QSyEsJZF9uaNXZ3F8EpnZn-320-80.jpg)
Iceland volcano eruption throws spectacular 160-foot-high wall of lava toward Grindavík
By Sascha Pare published
Icelandic authorities said residents and emergency responders should be ready to evacuate Grindavík at short notice after a new and ongoing eruption on the Reykjanes Peninsula.
![Satellite photo of a sow covered volcano with a larger crater filled with a lake and lava flows that make it look like a yin-yang symbol](https://cdn.mos.cms.futurecdn.net/Ldg6RsAJyacgEhbbAV2fUh-320-80.jpg)
Earth from space: Majestic 'yin-yang' crater sits atop a dormant volcano in Turkey
By Harry Baker published
The massive caldera of Turkey's Mount Nemrut volcano is split in half, with one side made of solidified lava flows and the other half a deep crater lake. Covered in snow, the summit scene looks like the yin-yang symbol when viewed from above.
![The GOES-17 satellite captured images of an umbrella cloud generated by the underwater eruption of the Hunga Tonga-Hunga Ha’apai volcano on Jan. 15, 2022. Crescent-shaped bow shock waves and numerous lighting strikes are also visible.](https://cdn.mos.cms.futurecdn.net/kdaPKh4NsxkdjHhAPWhgTC-320-80.gif)
Record-shattering Tonga volcanic eruption wasn't triggered by what we thought, new study suggests
By Sascha Pare published
Scientists think Tonga's record-breaking 2022 eruption was triggered by gas building up to a "critical point" rather than by a reaction between magma and seawater as previously assumed.
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