Volcano Erupts in Southern Caribbean

La Soufrière, on the main island of St. Vincent and the Grenadines, last erupted in 1979, but recent activity had alarmed disaster management officials, who urged residents to evacuate.

#caribbean-area, #st-vincent-and-the-grenadines, #volcanoes

0

Iceland Volcano Erupts After Weeks of Earthquakes

No injuries were reported after the rare eruption near Reykjavik — only joy, on the part of the singer and other Icelanders.

#bjork, #iceland, #volcanoes

0

In Iceland, 18,000 Earthquakes Over Days Signal Possible Eruption on the Horizon

The earthquake swarm is the culmination of more than a year of intense seismic activity. It could also herald decades of intermittent volcanic eruptions.

#earthquakes, #iceland, #reykjavik-iceland, #volcanoes

0

The Mouse That Survived a Volcanic Apocalypse

Much as small mammals outlived the dinosaur extinction, this rodent beat the odds when Pinatubo blew its top in the Philippines in 1991.

#conservation-of-resources, #endangered-and-extinct-species, #luzon-philippines, #mice, #philippines, #research, #rodents, #volcanoes, #your-feed-animals, #your-feed-science

0

The Cold Case of What’s Heating Up Yellowstone’s Steamboat Geyser

Scientists ruled out earthquakes and excessive snowfall as culprits in the series of outbursts from the world’s tallest active geyser.

#earthquakes, #geology, #geysers, #proceedings-of-the-national-academy-of-sciences, #rain, #research, #volcanoes, #water, #yellowstone-national-park, #your-feed-science

0

Kilauea Volcano Erupts in Hawaii, Prompting Warning About Ash

The civil defense authorities warned people to stay indoors to avoid the fallout of ash carried by the winds.

#earthquakes, #hawaii, #kilauea-volcano-hawaii, #united-states-geological-survey, #volcanoes

0

Deadly White Island Volcano Eruption Leads to Charges

Government agencies and individuals were among those charged over the roles in the 2019 disaster, which killed 22 people.

#accidents-and-safety, #deaths-fatalities, #new-zealand, #politics-and-government, #volcanoes, #white-island-new-zealand

0

How to Pretend You’re in Hawaii Tonight

With a few easy-to-find items, you can discover the archipelago’s breathtaking biodiversity, savor its flavors and music, even delight in an island-inspired Thanksgiving.

#art, #beaches, #books-and-literature, #cooking-and-cookbooks, #hawaii, #islands, #movies, #museums, #music, #quarantine-life-and-culture, #surfing, #thanksgiving-day, #travel-and-vacations, #volcanoes

0

Signs of Recent Volcanic Eruption on Mars Hint at Habitats for Life

Not thought to be volcanically active, Mars may have experienced an eruption just 53,000 years ago.

#icarus-journal, #mars-planet, #research, #space-and-astronomy, #volcanoes

0

Burning Fossil Fuels Helped Drive Earth’s Most Massive Extinction

Massive volcanic eruptions ignited oil and coal deposits in Siberia in the events that led to the Permian-Triassic “Great Dying” event.

#carbon-dioxide, #coal, #endangered-and-extinct-species, #fossils, #geology, #geology-journal, #global-warming, #greenhouse-gas-emissions, #nature-geoscience-journal, #oceans-and-seas, #oil-petroleum-and-gasoline, #research, #volcanoes, #your-feed-science

0

Could Listening to the Deep Sea Help Save It?

In the abyss, everyone can hear you scream.

#acoustics, #animal-behavior, #biodiversity, #chen-chong, #dolphins-and-porpoises, #fish-and-other-marine-life, #japan, #noise, #oceans-and-seas, #recording-equipment, #ships-and-shipping, #volcanoes, #your-feed-animals, #your-feed-science

0

New data on a volcanic eruption that scattered ash across Mayan lands

New data on a volcanic eruption that scattered ash across Mayan lands

(credit: Gerardo Aguirre-Díaz)

Maya civilization was blossoming into its golden age when a volcano erupted at the southern edge of the Maya region, in what is now El Salvador. Tens of meters of ash and debris buried the densely populated, fertile farming valleys around the Ilopango caldera. Aerosols blasted into the stratosphere by the eruption settled as far away as Greenland and Antarctica. While the wider Maya civilization was mostly unaffected, it took a century and a half for life to resume in the shadow of Ilopango.

In a recent study, Oxford University archaeologist Victoria Smith and her colleagues used tree rings from a stump caught in a pyroclastic flow, along with data from polar ice cores obtained more than 7,000km (4,300 miles) away. These dated the eruption to 431 CE, the early part of the Maya Classic Period. The date may help future archaeologists and climate researchers better understand the impacts of the eruption on Central America and the rest of the world.

Buried by Tierra Blanca Joven

Volcanoes make dangerous neighbors, but they have ways of drawing people close despite the risks. Fertile volcanic soils in the valleys of El Salvador supported dense populations in Maya villages and urban centers like Chalchuapa. By the beginning of the Maya Classic Period, around 250 BCE, the rulers at Chalchuapa had built temples and a ball court at the site. Artifacts found among the ruins reveal trade connections as far away as central Mexico.

Read 23 remaining paragraphs | Comments

#ancient-central-america, #ancient-disasters, #archaeology, #maya, #pre-columbian-civilizations, #science, #volcanic-eruptions, #volcanoes

0

Roaming Through Lanzarote’s Otherworldly Vineyards

The desolate beauty of the winemaking tradition on Lanzarote, the easternmost of the Canary Islands, is evidence of human resilience in the face of adversity.

#canary-islands, #drought, #europe, #grapes, #islands, #shakespeare-william, #travel-and-vacations, #volcanoes, #wines

0

The Roman Republic Was Teetering. Then a Volcano Erupted 6,000 Miles Away.

Scientists have linked historical political instability to a number of volcanic events, the latest involving an eruption in the Aleutian Islands.

#alaska, #aleutian-islands, #archaeology-and-anthropology, #caesar-julius, #nile-river, #proceedings-of-the-national-academy-of-sciences, #research, #roman-civilization, #rome-italy, #volcanoes, #your-feed-science

0

The volcano that caused famines in ancient Rome? It was in Alaska

The 10km-wide caldera on Alaska's Unmak Island formed during the 43 BCE Okmok II eruption.

Enlarge / The 10km-wide caldera on Alaska’s Unmak Island formed during the 43 BCE Okmok II eruption. (credit: Kerry Key (Columbia University, New York, NY))

Roman writers described unusual weather and famines in the years following Julius Caesar’s assassination in 44 BCE, adding to the turbulence of the civil war that marked the transition from Republic to Empire. A recent study has now identified the culprit: a volcano 9,000km (6,000 miles) away in Alaska.

“Madness of wolves in winter”

“Madness of wolves in winter; in summer, no grain is harvested,” cried a voice from the Oracle of Apollo, in Delphi, in the months following Julius Caesar’s death. Ancient writers who survived the period describe cold weather, short growing seasons, and widespread famine around the Mediterranean, from Rome to Egypt. Throughout the empire, starvation led to disease and fueled growing civil unrest in an already turbulent time.

For years, modern historians have speculated that a major volcanic eruption might have been the culprit. An erupting volcano blasts sulfur dioxide high into the atmosphere. As the sulfur dioxide spreads out in the stratosphere, chemical reactions turn it into other sulfur compounds that reflect solar radiation, blocking the Sun’s light and warmth. Huge swaths of the planet turn colder, often continents away from the eruption.

Read 17 remaining paragraphs | Comments

#ancient-egypt, #ancient-rome, #archaeology, #augustus-caesar, #cleopatra, #greenland, #history, #ice-cores, #julius-caesar, #ptolemaic-dynasty, #roman-empire, #science, #volcanic-eruptions, #volcano, #volcanoes

0

Yellowstone’s Supervolcano Is a Hot Spot, but It May Be Calming Down

Some researchers interpret a new timeline of some of the formation’s biggest eruptions as evidence that its activity is waning.

#geology, #geology-journal, #idaho, #knott-thomas, #research, #volcanoes, #yellowstone-national-park, #your-feed-science

0

Culprit for Mass Extinction 445 Million Years Ago? Global Warming

A planet heated by giant volcanic eruptions drove the earliest known wipeout of life on Earth.

#bond-david, #carbon-dioxide, #earth, #endangered-and-extinct-species, #geology, #geology-journal, #grasby-stephen, #greenhouse-gas-emissions, #scotland, #volcanoes, #your-feed-science

0

11 Great Alternatives to the Top National Parks

Whether you like hiking, fishing, volcanoes, trees or even fossilized trees, there is a less-traveled and still awe-inspiring national park for you.

#arches-national-park-utah, #big-bend-national-park-tex, #biodiversity, #canoes-and-canoeing, #canyonlands-national-park-utah, #congaree-national-park, #coronavirus-reopenings, #deserts, #dunes, #forests-and-forestry, #fossils, #glaciers, #great-basin-national-park, #great-sand-dunes-national-park-and-reserve-colorado, #gunnison-colo, #hikes-and-hiking, #lakes, #lassen-volcanic-national-park-calif, #national-park-service, #national-parks-monuments-and-seashores, #north-cascades-national-park-wash, #parks-and-other-recreation-areas, #petrified-forest-national-park-ariz, #shutdowns-institutional, #travel-and-vacations, #trees-and-shrubs, #volcanoes, #voyageurs-national-park-minn, #wilderness-areas

0

The Mount St. Helens Eruption Was the Volcanic Warning We Needed

It’s been 40 years since the sideways explosion that changed volcanology forever.

#geology, #mount-st-helens-wash, #volcanoes, #washington-state, #your-feed-science

0

Forty Years Later, Lessons for the Pandemic From Mount St. Helens

The tensions we now face between science, politics and economics also arose before the country’s most destructive volcanic eruption.

#forest-service, #mount-st-helens-wash, #pacific-northwestern-states-us, #volcanoes

0

Did Heavy Rain Make Hawaii’s Kilauea Volcano Erupt?

Two earth scientists offered a new model to explain destructive activity in 2018, but a number of their colleagues aren’t buying it.

#amelung-falk, #farquharson-jamie, #geology, #hawaii, #kilauea-volcano-hawaii, #nature-journal, #rain, #research, #volcanoes, #your-feed-science

0

Volcanoes where they shouldn’t be? Maybe it’s a mantle sponge

Volcanoes where they shouldn’t be? Maybe it’s a mantle sponge

Enlarge (credit: Google Earth)

The location and characteristics of most of the world’s volcanoes can be explained with just two recipes for magma production. The melting point of rock depends on pressure, so hot mantle rock flowing up toward the surface can melt as the pressure drops. The addition of water lowers the melting point, too, so water-laden seafloor plates can trigger melt as they sink down into the Earth at subduction zones. These two facts generally explain both volcanoes along plate boundaries—like the Pacific Ring of Fire or the mid-ocean ridges—and those at hot spots like Hawaii and Yellowstone.

But when looking back through Earth’s history, there are plenty of volcanic weirdos that don’t seem to line up with the figures in a textbook. There are volcanoes in the interior of the Western US, for example, far from any relevant plate boundary or hotspot. A new study by Jianfeng Yang and Manuele Faccenda of the University of Padua examines another difficult-to-explain set of past eruptions, both east and west of Japan.

Oddities near Japan

Japan sits on a subduction zone, with the Pacific seafloor sinking downward beneath the island. That’s the cause of both Japan’s dangerous earthquakes and its volcanic peaks like Mt. Fuji. But a thousand kilometers to the west, in northeast China, there are remnants of old volcanism. And 600 kilometers to the east, there are more recent basalt seamounts at the bottom of the ocean.

Read 9 remaining paragraphs | Comments

#geology, #plate-tectonics, #science, #volcanoes

0