Hotspot volcanoes

Water content controls depth of magma storage under many volcanoes, study finds

Water content controls depth of magma storage under many volcanoes, study finds A possible key to better eruption predictions overturns conventional theory Water content controls how deep magma is stored beneath active volcanoes, a new study finds. Here, lead author Daniel Rasmussen of Columbia University’s Lamont-Doherty Earth Observatory collects volcanic ash from the Fisher Caldera […]

Volcanic mountains

Navy vessel hit by volcanic ash from Tonga | Blue Mountains Gazette

The problems that caused an Australian navy vessel to lose power twice while delivering aid to Tonga may have been caused by volcanic ash, defense officials have revealed. HMAS Adelaide suffered a total blackout on January 29 while anchored in Tonga after delivering 88 tonnes of aid. Back-up power was restored within hours, but a […]

Volcanic mountains

Photos of volcanic storm on Etna look like something out of Lord of the Rings

Volcanic lightning strikes Mount Etna in Sicily, Italy, during an eruption on Friday, February 11, 2022. Photo: Emilio Messina (PA) A powerful eruption last week from Mount Etna in Sicily, Italy created a volcanic storm so powerful it lit up the sky with a dramatic flash. The eruption began late last Thursday and threw volcanic […]

Hotspot volcanoes

USGS places four US volcanoes on high watch due to increased unrest

Despite the recent focus on Tonga’s main volcanic eruption, the USGS continues to monitor volcanoes in the United States. Currently four are at high Watch/Orange status due to activity altogether. (Photo: Getty Images) Volcanoes placed in high standby/orange status Great Sitkin Volcano, Pavlof, Semisopochnoi and Kilauea are the four volcanoes showing signs of unrest or […]

Volcanic mountains

An explosive volcanic eruption triggered an hour-long thunderstorm • Earth.com

The January 2020 eruption of the Taal volcano in the Philippines became electrified and caused a thunderstorm lasting several hours, with thousands of cloud-to-ground lightning strikes. A new study conducted by the United States Geological Surveythe National Oceanic and Atmospheric Administration and Vaisala Inc. highlight how advances in global lightning detection may provide new ways […]

Volcanic mountains

Volcanic eruption devastates Tonga – The Diplomat

In this photo provided by the New Zealand Defense Force, volcanic ash covers rooftops and vegetation in an area of ​​Tonga, Monday, January 17, 2022. Credit: CPL Vanessa Parker/NZDF via AP) Advertising The Government of Tonga has released its first declaration since a violent volcanic eruption took place on Saturday and caused havoc across the […]

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The unknown world of underwater volcanoes

ROV Jason studies an underwater hydrothermal vent (NOAA) Posted on Dec 17, 2021 3:53 PM by Brian Gicheru Kinyua Volcanic activity is emblematic of the destructive power of nature. When they occur on land, volcanic eruptions leave a trail of property destruction and loss of life. In 2015, about eight percent of the world’s population […]

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Mount Semeru eruption raises concerns about status of other active volcanoes in Indonesia | The Weather Channel – Articles from The Weather Channel

Representative image of the volcanic eruption. (IANS) The eruption of Mount Semeru in East Java province has raised concerns about the status of other active volcanoes across Indonesia, which are home to more than 270 million people. After Mount Semeru erupted on Dec. 4, three volcanoes were on Level Three alert, the second highest, according […]

Volcanic mountains

Volcanic fertilization of the oceans led to a severe mass extinction

Scientists from the University of Southampton have found that two intense periods of volcanism triggered a period of global cooling and falling oxygen levels in the oceans, which caused one of the most severe mass extinctions in history. the history of the Earth. The researchers, together with colleagues from the University of Oldenburg, the University […]

Volcanic mountains

Mount Pinatubo placed on high eruption alert as ‘volcanic activity’ triggers ash warning | Sciences | New

The Tokyo Volcanic Ash Advisory Center has issued an alert for a “possible eruption” for the volcano in the Philippines. It follows images taken by the Japanese satellite HIMAWARI-8. Sharing the report on Twitter, extreme weather hunter James Reynolds said: “Tokyo VAAC has volcanic ash alert in Pinatubo.” To which meteorologist Kyle Noël replied: “Yes, […]

Volcanic mountains

How volcanic eruptions help feed the world

Solange Duhamel turned her back to the wind as it almost sideways lashed the Icelandic rocky landscape last April. She shielded her face from the hailstones, waiting for the storm to end. Yet Duhamel couldn’t help but gaze in wonder at the scene unfolding in front of her. A stream of glowing lava poured out […]

Volcanic mountains

Winds lift volcanic ash from Alaska’s 1912 eruption

Ash drifts around the barabaras (mud houses) of Katmai village after Novarupta erupted in June 1912. Katmai’s New Russian Orthodox Church is visible in the background. (GC Martin/US Geological Survey) Volcano scientists issued an alert on Wednesday, warning that an ash cloud – from an eruption more than a century ago – was heading towards […]

Volcanic mountains

“Volcanic winter” probably contributed to ecological disaster 250 million years ago: study

Minerals rich in copper indicating extensive volcanic activity at the end of the Permian mass extinction in different regions of southern China (A: locality of Taoshujing; B: locality of Lubei; C: Guanbachong; D: locality of Taoshujing; E: Longmendong locality). The minerals are all copper sulfides, mainly malachite – the green spots of the minerals. Credit: […]

Hotspot volcanoes

Examining the Over 1,800 “Young” Volcanoes of the Southwestern United States

A view of the crater of Dotsero volcano, a monogenetic volcano that erupted in Colorado about 4,000 years ago. Credit: Greg Valentine They were born. They live once, erupting for a period that can last for days, years, or decades. Then they darken and die. This story describes the life of a monogenetic volcano, a […]

Volcanic mountains

La Palma’s volcanic ash spreads across the Atlantic

European Space Agency published fascinating footage from last week showing how the ash plume of the La Palma volcano eruption charge west across the Atlantic Ocean. The ash is crossing the atmosphere just at the end of the high hurricane season. Considering that things have been (luckily) calm in the Atlantic in recent weeks with […]

Volcanic mountains

Volcanic islands at boiling point

There is nothing we can do about flank collapses except have a good early warning system. Don’t worry about it ”, the mainstream media are running the risk that the volcanic eruption in La Palma, in the Canary Islands, turns into a mega-tsunami. The media definitely overstated this risk when it was first suggested twenty […]

Volcanic mountains

Volcanic ash meets the Saharan air layer in a unique display above La Palma

Volcanic ash meets the Saharan air layer in a unique display above La Palma Mother Nature can work in mysterious ways to create a work of art out of something that seems nothing out of the ordinary. In the case of the Cumbre Vieja volcano on the island of La Palma in the Canary Islands, […]

Volcanic mountains

Volcan Fuego, Popocatépetl, Reventador, Kilauea, Sangay, L … / VolcanoDiscovery

Wed Oct 6, 2021, 9:00 PM 9:00 p.m. | BY: SEVERAL CONTRIBUTORS Map of today’s active volcanoes View of the eruption on La Palma this morning (Image: live broadcast from Canarias TV) Ash plume from the eruption of La Palma on the evening of October 5, 2021 Satellite image of Lewotolo volcano on October 6, […]

Volcanic mountains

A cloud of volcanic ash closes the airport of La Palma; a new vent makes its appearance

MADRID – The airport on the Spanish island of La Palma closed on Saturday due to an ash cloud escaping from a volcano that has erupted for a week, and scientists say another volcanic vent has opened , exposing the islanders to possible new dangers. The intensity of the eruption that began on September 19 […]

Volcanic mountains

The Mayans built this monumental pyramid in volcanic rock | Smart News

Construction on the pyramid, which was 43 feet high and about 130 feet wide, began within 5 to 30 years of the eruption of Tierra Blanca Joven. Akira Ichikawa / Antiquity Publications Ltd. Around the fifth or sixth century CE, the volcanic eruption of Tierra Blanca Joven (TBJ) caused massive devastation in El Salvador. Researchers […]

Volcanic mountains

Great dangers ahead for the Spanish volcanic island – CBS17.com

MADRID (AP) – A small Spanish island in the Atlantic Ocean is in trouble days after a volcano erupted, forcing the evacuation of thousands, and authorities warn other dangers from the explosion are to come. Here is an overview of the volcanic eruption of La Palma and its consequences: WHERE HAS THE VOLCANO ELECTED? The […]

Volcanic mountains

EXPLAINER: Great dangers loom for the Spanish volcanic island

MADRID – A small Spanish island in the Atlantic Ocean is in trouble days after a volcano erupted, forcing the evacuation of thousands, and authorities are warning more dangers from the explosion are coming. Here is an overview of the volcanic eruption of La Palma and its consequences: WHERE HAS THE VOLCANO ELECTED? The eruption […]

Volcanic mountains

Catastrophic volcanic eruption prompted construction of ancient Mayan pyramid, research finds

The pyramid, known as the Campana structure, with volcanic mountains in the background. Picture: Akira Ichikawa About 1,500 years ago, a powerful volcanic eruption devastated what is today El Salvador, plunging the Mayan civilization into a period of temporary decline. New research suggests that a monumental pyramid located near the volcano was built by the […]

Volcanic mountains

Almost 70% of Lassen Volcanic National Park burned down by forest fire

Located in northern California, Lassen Volcanic National Park is one of the state’s most popular, drawing half a million visitors each year. Although less well known than other popular parks such as Yosemite, this 100,000-acre park is a favorite with our travel experts. Located 130 miles north of Sacramento at the southern end of the […]

Volcanic mountains

Early Mars saw volcanic supereruptions, researchers say

Using high resolution images of NASA’s Mars Reconnaissance Orbiterplanetary scientists have discovered 4 billion year old layered deposits containing minerals consistent with weathered volcanic ash in a northern region of Mars called Arabia Earth. They estimate that the volcanic ash observed in this region is the result of between 1,000 and 2,000 individual explosive eruptions […]

Hotspot volcanoes

In Hawai’i Volcanoes National Park, witness the power of the Earth

Each piece begins with a bird’s-eye view of the history and impact of a unique American site, then zooms in to reveal the experience on the ground. In this article, Hawaii-based writer Catherine Toth Fox explores the fiery magic of Hawai’i Volcanoes National Park. © Michael Parkin, Folio Art 35,000 feet: the beginnings of Hawaii […]

Volcanic mountains

The biggest volcanic eruptions of all time

For hard evidence of nature’s ability to degenerate into catastrophic disaster, look no further than the volcano. These metaphorical portals to hell, which currently number around 1,500 worldwide, not only spew volcanic ash and lava, but can dramatically alter the climate and course of world events. Most are stratovolcanoes, cone-shaped elevations built over time from […]

Volcanic mountains

Volcanic eruptions may have caused the first “puffs” of oxygen in Earth’s atmosphere – ScienceDaily

A new analysis of 2.5 billion-year-old Australian rocks reveals that volcanic eruptions may have stimulated population surges of marine microorganisms, creating the first breaths of oxygen in the atmosphere. This would change the existing stories of Earth’s early atmosphere, which assumed that most changes in the early atmosphere were controlled by geological or chemical processes. […]

Hotspot volcanoes

Which islands have the most impressive active volcanoes?

Both islands are known for their active volcanoes and for those who fascinate them, it is a difficult choice to decide which are the best. Iceland and the Hawaiian Islands could not be more contrasted. While the Hawaiian Islands are tropical, Iceland is subarctic. While the natives of the Hawaiian Islands are Polynesians, the Icelanders […]

Hotspot volcanoes

3 erupting Alaskan volcanoes spewing lava or ash clouds

In this webcam image provided by the Alaska Volcanoes Observatory, the Pavlof volcano is in an erupting state with episodic low-level ash emissions on Thursday, August 5, 2021. Three remote volcanoes in Alaska are each in state of eruption, one producing lava and the other two blowing steam and ash. So far, no small community […]

Hotspot volcanoes

Three erupting Alaskan volcanoes spewing lava or ash clouds

ANCHORING – Three remote Alaskan volcanoes are in various erupting states, one producing lava and the other two blowing steam and ash. So far, none of the small communities near the volcanoes have been affected, said Chris Waythomas, a geologist at the Alaska Volcano Observatory on Thursday. Thursday’s webcams clearly showed low-level episodic ash emissions […]

Hotspot volcanoes

Explosive Secret of Volcanoes – The Hindu

Volcanoes that have erupted for millennia in a certain way have the capacity to undergo unexpected changes We all know the basics of volcanoes. These are spots on the earth’s crust from which molten rock, volcanic ash and some gases can escape from an underground chamber. Molten rock is called magma when it is below […]

Hotspot volcanoes

Why do volcanoes erupt?

According to the traditions of the Australian Gunditjamara people, the mainland’s Budj Bim volcano formed when a giant crouched on the earth for so long that its body became a volcanic mountain and its teeth turned into lava that the volcano spat out. But as the science of geology explains, the 60 to 80 the […]

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Underwater volcanoes release enough energy to power an entire continent

Volcanic eruptions deep in our oceans release powerful blasts of energy at a rate high enough to power an entire CONTINENT, study finds Researchers have created a mathematical model to understand underwater eruptions They were found to be spitting up vast clouds of ash which propelled mega plumes of hot air They are powered by […]

Hotspot volcanoes

Cornish volcanoes that were active hundreds of millions of years ago

You might find it hard to imagine, but Cornwall’s past includes barren deserts, terrifying prehistoric beasts, and volcanoes. Our county was once an active region of volcanism, and lava-spitting volcanic eruptions shaped the local landscape for millions of years to come. Although Britain’s last volcanoes are believed to have erupted around 60 million years ago, […]

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Gacad: volcanoes explained – SUNSTAR

THE VOLCANOES are the geological architects of the Earth. They created over 80 percent of our planet’s surface, laying the foundation that allowed life to thrive. Their explosive force makes mountains as well as craters. Rivers of lava spread across dark landscapes. But as time passes, the elements break down these volcanic rocks, releasing nutrients […]

Hotspot volcanoes

Guess what, California? Now you have to prepare for erupting volcanoes

Based on records of volcanic history, geologists calculate the probability of an eruption in California within the next 30 years at 16%. For comparison, scientists put the 30-year probability of a major Bay Area earthquake along the San Andreas Fault at around 22%. Jessica Ball, geologist at the California Volcano Observatory and co-author of the […]