la palma eruption, lasers, new discoveries, volcanic eruptions, volcano
When you hear news reports about volcanoes spewing lava and ash, you may worry about the people nearby. In fact, almost 1 in 10 people around the world live within 100 kilometers of an active volcano. For those living close to volcanoes, farming on their fertile soils, or visiting their spectacular landscapes, it is crucial ...
With technology increasingly embedded in our everyday lives, it is becoming more important to understand space weather and its impacts on tech. The Tonga volcano eruption penetrated the ionosphere and disrupted satellite navigation. When you hear “space weather,” you typically think of huge explosions on the Sun — coronal mass ejections hurled towards Earth, creating ...
Tiny earthquakes have been felt on the Big Island over the past seven years, in particular since the 2018 eruption and summit collapse of Kīlauea. Magma pumping through a massive complex of flat, interconnected chambers deep beneath volcanoes in Hawai‘i appears to be responsible for this unexplained swarm. The pancake-like chambers, called “sills,” channel magma ...
Methane emissions created by volcanic activity burning buried fossil fuel deposits could have played a major role in the global warming that triggered the largest mass extinction event in Earth’s history, a new study suggests. The Late Permian Mass Extinction, also known as “the great dying,” happened around 260 million years ago, and wiped out ...
The January 2022 eruption of the Hunga Tonga-Hunga Ha’apai volcano produced the highest-ever recorded volcanic plume. Using satellite images, researchers at the University of Oxford’s Department of Physics and RAL Space confirmed this. The colossal eruption is also the first to have been directly observed to have broken through to the mesosphere layer of the ...
A study of a 2020 volcanic eruption conducted by scientists at the U.S. Geological Survey, the National Oceanic and Atmospheric Administration, and Vaisala Inc., published yesterday in the Geological Society of America’s journal Geology, discusses how advances in global lightning detection have provided novel ways to characterize explosive volcanism. Lead author Alexa Van Eaton said: “It’s ...
A catastrophic drop in atmospheric ozone layer levels around the tropics is likely to have contributed to a bottleneck in the human population around 60,000 to 100,000 years ago, an international research team has suggested. The loss of the ozone layer, triggered by the eruption of the Toba supervolcano located in present-day Indonesia, might solve ...
Large tropical volcanos have caused some of the world’s most destructive natural disasters in history, with volcanic eruptions spewing out massive quantities of harmful gases and other debris that can wipe out everything in their path. But what about wider impacts on global climate? These large volcanic eruptions are known to temporarily cool the planet ...