Magma fountains through a fissure on Mauna Loa, becoming lava, on Nov. 30, 2022.
A scientist who led one of the first projects to map the Hawaiian Islands’ deep volcanic plumbing explains what’s going on under the surface as Mauna Loa erupts.
Mayotte’s surrounding coral reef is made up of three different structures more than 350 kilometers long. The lagoon they form is threatened by climate change and erosion.
Mayotte is no exception to the adage “small islands, big problems”. A newly born volcano combined with poor land management and accelerating climate change has put its fabled lagoon at risk.
New Line Cinema
In the Lord of the Rings prequel, The Rings of Power, the dark realm of Mordor is created by diverting a river into a dormant volcano, setting off a huge eruption – but is this scientifically viable?
This is an enhanced satellite image of Western Australia’s Great Sandy Desert. Yellow sand dunes cover the upper right, red splotches indicate burned areas, and other colours show different types of surface geology.
The United States Geological Survey has a vast collection of satellite images capturing breathtaking geological features of our planet. As a geologist, I’ve picked eight of the most fascinating.
Earth has liquid rock inside. Here’s what happens to that rock to make lava happen.
An overhead shot of a volcano crater in east Java, Indonesia.
Drones can be used to collect gas samples from active volcanoes, where it is too dangerous for researchers. This data can be then used to predict the frequency and severity of eruptions.
Marco Di Marco/AP
Volcanoes themselves can also impact the climate, due to a “cooling effect” that comes after eruptions.
Salvatore Allegra / AP
New modelling shows how tectonic plate movements, carbon-rich deep-sea sediment, and mountain weathering have regulated Earth’s climate.
Artwork by Katrina Kenny © 2022
Research has found evidence in NSW for one the most devastating series of volcanic eruptions known.
Workers for the Tonga Geological Services look at the smoke poring from the eruption site.
(Tonga Geological Services/Government of Tonga)
In 1983, a Canadian group helped rebuild traditional cooking houses in Tonga in the aftermath of a devastating cyclone. The Tonga Kitchens project offers lessons for Canadian aid today.
Climate change doesn’t just affect the atmosphere and the oceans, it affects the Earth’s crust as well.
The volcano shortly before its eruption.
Maxar via Getty Images
A phenomenon first theorized over 200 years ago is also a telltale sign of nuclear tests.
Beachgoers watch waters rise during a tsunami advisory on a beach in Santa Cruz, Calif.
(AP Photo/Nic Coury)
Tsunamis can be generated by underwater volcanic explosions thousands of miles away. The Jan. 15 explosion in Tonga resulted in tsunami advisories for British Columbia and all along the U.S. west coast.
A submarine eruption 34 nautical miles off the coast of Tonga’s capital, Nuku'alofa. March 18 2009.
Monitoring volcanoes is a bit trickier when they’re deep under the ocean’s surface.
On Jan. 15, 2022, coastal areas across California were placed under a tsunami warning.
Gado via Getty Images
Tsunamis aren’t just bigger-than-average waves. Triggered by undersea earthquakes or volcanic eruptions like the one in Tonga, they are fast, massive and potentially destructive. Here’s why.
Satellite image of the Tonga explosion.
TONGA METEOROLOGICAL SERVICES/EPA
Volcanic eruptions can wreak havoc in the upper atmosphere.
AP/Planet Labs PBC
Future events could damage the critical portion of the undersea network which links to Australia.
Lava flows from a fissure in the aftermath of eruptions from the Kilauea volcano on Hawaii’s Big Island, May 22, 2018.
Andrew Richard Hara/Ena Media Hawaii via Getty Images
Volcanoes might seem like nature’s incinerators, but using them to burn up trash would be dangerous and disrespectful to indigenous people who view them as sacred.
Fadli Taha (45 years old) with a photo of his family in front of his house which was buried by hot clouds from Mount Semeru in Sumberwuluh Village, Lumajang, East Java, Tuesday 7 December 2021.
ANTARA FOTO/Zabur Karuru/foc.
To answer this question, it’s important to understand how PVMBG of the Ministry of Energy and Mineral Resources classify the physical events of Semeru and the corresponding alert level.
The eruption in East Java that claimed 22 lives on Saturday was likely triggered by weather conditions rather than by internal unrest inside Mount Semeru, which would have been easier to monitor.