An international team of scientists installed a novel, dense network of 48 seismic sensors on the island of Lipari to investigate the active magma system underground.
volcanoes
Honoring Volcanologist David Johnston as a Hero and a Human
A new biography details the life and legacy of the scientist who died on Mount St. Helens.
Planning an International Magma Observatory
A planned project will drill into a magma reservoir in Iceland that has never erupted to the surface, giving scientists a fresh look at Earth’s underground “plumbing.”
Monitoring Volcanic Craters with Infrasound “Music”
Volcanic craters act as giant horns that emit intense low-frequency sounds. Changes in this infrasound may be used to track rising lava lakes and identify signals of future eruptions.
Role of Continental Arcs in Global Carbon Dioxide Emissions
Continental arcs are a major player in global carbon dioxide emissions, but quantifying that relationship is hard. A new study accepts the challenge on a global scale over 750 million years.
Eruption in El Salvador Was One of the Holocene’s Largest
Roughly 1,500 years ago, the Tierra Blanca Joven eruption blanketed Central America in ash and likely displaced Maya settlements, new research shows.
Paleomagnetism Indicators May Be Flawed
A new study finds that magnetism in volcanic ash tuff forms through varied processes, calling into question previously reliable signatures used to study variations in Earth’s magnetic field.
Ammonia Ice Deposits on Pluto Hint at Recent Cryovolcanism
This discovery is the latest in a growing stack of evidence pointing to the presence of an ammonia-rich water ocean beneath Pluto’s icy crust.
Crystals Connect Bubbles in Explosive Magmas
Hydrous silica-rich magmas can degas through connected bubble pathways when as little as 20% crystals are present, influencing transitions from explosive, Vulcanian-style eruptions to lava effusion.
On the Prospect of Ancient Metallic Volcanism on Asteroids
There is a possibility of ancient volcanism on metallic asteroids, a new type of volcanism that is not yet observed, though the Psyche mission to the asteroid Psyche may change that soon.
