Two volcanic islands that were recently born in the Red Sea are providing scientists with new information about a little-known rift in Earth's crust.
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.
During the rainy fall and winter, most Oregonians probably don't give much thought to Lost Lake, a shallow 85-acre (0.34 square kilometers) lake surrounded by pine trees that sits near a highway.
For the first time in more than 30 years, lava is flowing on the floor of Halema'uma'u crater in Hawaii.
The roiling lava lake atop Hawaii's Kilauea volcano is threatening to overflow for the first time since the molten pool appeared in 2010.
Two hundred years after the biggest volcanic blast in recorded history, scientists have ranked the countries most at risk of another deadly eruption.
Here are the countries most at risk of a deadly volcanic eruption, according to an international team of experts known as the Global Volcano Model network.
New images of the recent eruption of one of Chile's most active volcanoes reveal how powerful blasts of lava and ash blanketed the mountain's side with volcanic material.
American and European satellites captured images of a Chilean volcano before and after it blew up on March 3.
Four geologists in Iceland had the hottest job on Earth this week. To capture accurate measurements of toxic volcanic gases, the scientists climbed directly into Baugur crater on Wednesday.
Hawaii's big, booming eruptions are born from a pair of two relatively small magma chambers under Kilauea volcano's peak.
A small early morning eruption at Chile's Villarrica volcano lit the night sky with a spectacular display glowing ash and sputtering lava.
The eruption of volcanoes buried beneath Iceland's glacier may have triggered a series of megafloods that carved a giant canyon in a period of days, new research suggests.