Volcanoes

Scientists closely monitor underwater volcano off Hawaii after rare earthquake swarm

Keahi Tucker
Hawaii News Now
Wed, 13 May 2020 20:59 UTC

Volcanologists are keeping a close eye on their instruments after a rare earthquake swarm off the Big Island the past two days.

Twenty miles off the southeast coast of the Big Island, Hawaii's newest volcano rises 10,000 feet from the ocean floor with its summit about 3,000 feet under the surface.

When Loihi starts shaking, scientists pay attention.

"Think of it as a younger version of Kilauea or Mauna Loa volcanoes," said David Phillips, deputy scientist in charge at Hawaiian Volcano Observatory.

Phillips said there's no significant hazard at the moment, but at one point HVO recorded 14 earthquakes per hour on the Loihi Seamount.

"The peak did take place yesterday afternoon, whether it continues to subside or come back is hard to say," Phillips said.

On a seismogram, more than a hundred temblors struck in the 2- to 3-magnitude range, suggesting magma is on the move.

Strong eruptions in past few last days at Sakurajima volcano, Japan

Volcano Discovery
Mon, 11 May 2020 09:47 UTC

Strong explosion from Sakurajima volcano on 8 May

The activity of the volcano continues at high levels associated with strong eruptions during the past days.

On 8 May at 07:04 local time a powerful explosion occurred from its crater. A dense dark ash plume rose 6,561 ft (2,000 m) above the summit.

On 9 May at 05:32 local time another vigorous eruption occurred when ash plumes reached 13,779 ft (4,200 m) altitude.

Ancient volcano discovered on Dutch seafloor

Byron Mühlberg
NL Times
Sat, 09 May 2020 06:06 UTC

© TNO/TNO
The Mulciber volcano (in red) found at the bottom of the North Sea. Three kilometers of sediment lies on top of it.

An extinct volcano has been discovered about 100 kilometers off the coast of Texel, the Netherlands Organisation for Applied Scientific Research (TNO) confirmed this week. The 150-million-year-old volcano, named 'Mulciber' after the Roman god of fire, was discovered accidentally by TNO researchers during a reanalysis of old seafloor maps while on the search for oil.

The ancient formation was recognized by deviations in the seafloor's structure, combined with measurements of the earth's magnetic field. According to Michiel van der Meulen, who headed up the Geological Survey of the Netherlands for the TNO, the discovery marks an important moment in the understanding of volcanism in the North Sea.

"The North Sea and the geological deposits in it seem to me to be reading an exciting story. We think we know the big story now. But if as you reread it, characters and storylines become more and more apparent, so this discovery adds to the general knowledge about our living environment," Van Der Meulen explained to public broadcaster NOS on Saturday.

Iranians spill into the streets after 5.1 earthquake centering on sleeping volcano hits Tehran

RT
Thu, 07 May 2020 23:37 UTC

A 5.1 magnitude earthquake has jolted an area in northern Iran, home to a sleeping volcano, forcing panicked residents in and around Tehran to rush onto the streets despite the Covid-19 lockdown.

The quake sent ripples across Iran's north shortly after midnight local time on Friday, striking at a shallow depth of just 7 km, less than 10 km (6.2 mi) north of the city of Damavand. The city is located close to Mount Damavand, the second-highest volcano in Asia.

The dormant volcano sits some 70 km (43 mi) north-east of the Iranian capital Tehran, where locals reported moderate to severe shaking from the Friday morning tremor.

Photos and videos have emerged on social media showing residents flooding the streets in the aftermath of the quake.

Iranian emergency services said that at least two people died and 13 were injured in the ensuing chaos.

Hundreds of towering hydrothermal chimneys discovered on seafloor off Washington

Mindy Weisberger
Live Science
Fri, 01 May 2020 12:00 UTC

In the dark ocean depths off the coast of the Pacific Northwest, a magical fairyland of towering spires and hydrothermal chimneys sprout from the seafloor, a stunning new underwater map reveals.

These towers belch superheated liquid warmed by magma deep inside Earth.

The field of hydrothermal chimneys stretches along the ocean bottom on the Juan de Fuca Ridge to the northwest of coastal Washington state, in an area known as the Endeavor Segment.

Research on the Endeavor vents began in the 1980s, and scientists had previously identified 47 chimneys in five major vent fields. But recent expeditions, using an autonomous underwater vehicle operated by the Monterey Bay Aquarium Research Institute (MBARI) revealed more than 500 chimneys in a zone about 9 miles (14 kilometers) long and 1 mile (2 km) wide.

Comment: See also:

Klyuchevskaya Sopka, the tallest volcano in Eurasia ERUPTS in Russia's Far East, spews ash 7,000m into the skies

RT
Tue, 28 Apr 2020 01:41 UTC

Klyuchevskaya Sopka volcano kamchatka russia

The eruption of the Klyuchevskaya Sopka volcano in Russia's Kamchatka has created spectacular scenes, producing rivers of lava and massive smoke clouds - but scientists worry that the resulting ash cloud could disrupt air traffic.

The latest activity within the steep symmetrical cone of the volcano - the highest in Eurasia - blew ash some 7,000 meters into the air on Monday, the Emergencies Ministry said.

Klyuchevskaya Sopka, at 4,649 meters in height, was effectively inactive for three years before it started spewing lava again last October - and the smoldering eruption has continued to some degree ever since.

Three eruptions at Sakurajima Volcano in Japan

Volcano Time-Lapse
YouTube
Fri, 24 Apr 2020 13:27 UTC

Sakurajima eruption

At 16:13 JST, 16:55 & 17:03 JST three explosions were registered. The third plume on camera one is not shown because it was obscured by plume number two. Link to camera.

Give them a follow! Thank you for watching! As I'm typing Sakurajima has erupted two more times this day. It's getting late in the day in Japan and night will fall soon. I'm busy! What will the night bring?

Sicily's Mount Etna spews smoke and ash 5 km into air

Yahoo News UK
Mon, 20 Apr 2020 00:42 UTC

Sicily's Mount Etna erupted in plumes of smoke and ash which reached heights of over 5 km and produced "slight falls of fine ash" on the eastern side of the volcano on April 19, Italy's Institute of Geophysics and Volcanology reported.

According to the Institute of Geophysics and Volcanology, the New Crater of Etna experienced "an episode of Strombolian activity and modest lava fountains, accompanied by ash emission," on Sunday morning, April 19. The institute said there were no lava flows and the event was over by approximately 1 pm, local time.

Comment: There has been an uptick in volcanic activity worldwide recently.

One of the world's most active volcanoes spew lava in Russia's far east

RT
Sun, 19 Apr 2020 14:22 UTC

Klyuchevskoy volcano

The Klyuchevskoy volcano in Russia's far eastern Kamchatka Peninsula - a huge volcano among the most active in the world - has erupted, spewing tons of ash and lava in a powerful explosion caught on film.

Streams of lava emerged from the Klyuchevskoy volcano, which has been seen sending huge flames and clouds of black smoke high into the sky, a video recorded by the Kamchatka geophysical service shows.

East Java's Mount Semeru spews 2,000-meter-high column of ash

The Jakarta Post
Sat, 18 Apr 2020 12:37 UTC

Mount Semeru in Lumajang, East Java, has reportedly shown elevated volcanic activity that was marked with a 300-second tectonic earthquake and a 2,000-meter-high column of ash blowing south.

The increasing activity was recorded on Friday morning at around 6 a.m., the Volcanology and Geological Hazard Mitigation Center (PVMBG) confirmed, citing that the mountain had persistently erupted and expelled lava from its crater since the beginning of April.

Unfortunately, as a nation government of narcissists, I doubt we're capable of doing this. More accurate.

Christian83

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LindaMay

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Smokey

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LindaMay

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ReRan

Volcanoes

Scientists closely monitor underwater volcano off Hawaii after rare earthquake swarm

Strong eruptions in past few last days at Sakurajima volcano, Japan

Ancient volcano discovered on Dutch seafloor

Iranians spill into the streets after 5.1 earthquake centering on sleeping volcano hits Tehran

Hundreds of towering hydrothermal chimneys discovered on seafloor off Washington

Klyuchevskaya Sopka, the tallest volcano in Eurasia ERUPTS in Russia's Far East, spews ash 7,000m into the skies

Three eruptions at Sakurajima Volcano in Japan

Sicily's Mount Etna spews smoke and ash 5 km into air

One of the world's most active volcanoes spew lava in Russia's far east

East Java's Mount Semeru spews 2,000-meter-high column of ash

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