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    France Administrator Hervé's Avatar
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    Default Exceptionally Powerful Volcanic Explosions and Activities

    Another ‘dormant’ volcano comes to life – Video

    by Robert June 27, 2019

    Could affect climate.

    After lying dormant for 95 years, Raikoke Volcano on a small island off Russia’s Kamchatka Peninsula just awoke in an enormous fashion.

    Images captured by astronauts aboard the International Space Station (ISS) and also by radiometers and spectroradiometers of NASA satellites, show an ash plume rising as much as 10 miles (16 km) into the sky. Volcanologists say that ash plumes that high could affect the climate.

    Raikoke last erupted in 1924, and before that in 1778.

    Also see:
    https://www.msn.com/en-us/video/scie...ars/vi-AADswFg


    Thanks to Oly for this link
    Last edited by Hervé; 28th June 2019 at 16:26.
    "La réalité est un rêve que l'on fait atterrir" San Antonio AKA F. Dard

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    Default Re: Exceptionally Powerful Volcanic Explosions and Activities

    Ulawun volcano erupts in Papua New Guinea, sends residents fleeing - ash sent over 13km into the air

    The Straits Times
    Wed, 26 Jun 2019 12:37 UTC


    A pilot for Niugini Helicopters flying near the crater witnessed a column of lava spurting vertically into the equatorial sky, along with ash that has been belching since early morning on June 26, 2019 © AFP/NIUGINI HELICOPTERS

    Papua New Guinea's volatile Ulawun volcano - designated one of the world's most hazardous - erupted on Wednesday (June 26), spewing lava high in the air and sending residents fleeing.

    A pilot for Niugini Helicopters flying near the crater witnessed a column of lava spurting vertically into the equatorial sky, along with ash that has been belching since early morning.

    Ulawun, on the remote Bismarck Archipelago chain, is listed as one of 16 "Decade Volcanoes" targeted for research because they pose a significant risk of large, violent eruptions.

    Witnesses said lava had cut off the main highway in north of the island.

    "The volcanic activity at Mount Ulawun began at 7am this morning after slight rumbling and light emission," Leo Porikura, an official with the West New Britain Disaster Office, told AFP earlier.

    "The Rabaul Volcano Observatory has declared a stage one alert warning of a possible eruption."

    Witnesses had reported ash spewing out of the 2,334m summit, sending trails spanning high overhead.

    "The sky has turned black," said Kingsly Quou, manager of the nearby Mavo Estates palm plantation.

    Quou said that villagers living at the base of the volcano had already been evacuated and he and his colleagues were gathering their belongings.

    Japanese satellite imagery and sources on the ground had shown sulphur dioxide and now volcanic ash drifting from the crater.

    Australia's Bureau of Meteorology said the ash reached more than 13km into the air.

    The bureau's Darwin Volcanic Ash Advisory Centre issued a "red" warning to airlines, indicating the eruption was imminent, although there is not believed to be an immediate threat for flight routes.

    Thousands of people live in the shadow of Ulawun, despite it being one of the most active volcanoes in the country.

    Porikura said people living in the vicinity of the volcano had been instructed to move away to safer areas and a disaster team had been dispatched.

    "The disaster team will liaise with the local community, local businesses and local level government authorities to prepare for a possible eruption," he said.

    "Three crucial priority areas being addressed include transport plan, care centre preparations and getting the communities in the high-risk areas to prepare for an evacuation," Porikura said.

    The nearby Rabaul Volcano Observatory said emissions from the volcano were getting darker, indicating a higher ash content - which can cause breathing problems, eye irritation and skin irritation because of the high acid content.

    A team of experts had visited earlier this month and reported the volcano was "quiet" adding "there is no indication of any change in its state of unrest." The ash emissions had been proceeded by an increase in seismic activity, Porikura said.

    Source: AFP
    "La réalité est un rêve que l'on fait atterrir" San Antonio AKA F. Dard

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    Default Re: Exceptionally Powerful Volcanic Explosions and Activities

    ohh, Lordy, all!

    if Yellowstone should erupt good night nurse!

    be well all-

    Larry

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    Default Re: Exceptionally Powerful Volcanic Explosions and Activities

    Unsure where this pair would lie on the explosivity index, but these seem quite significant plumes. And occurring so close together, and both on the Ring of Fire...
    "When the power of love overcomes the love of power the world will know peace."
    ~ Jimi Hendrix

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    Default Re: Exceptionally Powerful Volcanic Explosions and Activities

    Volcanoes cooling our planet

    by Robert June 29, 2019
    “Particulates ejected to altitudes above 32,800 feet (10 km) have a direct cooling effect on the planet.”
    Volcanoes cooling our planet

    tom0mason

    Powerful high-level eruptions have been ongoing at Raikoke volcano, Russia ever-since the massive unexpected explosion that took place on June 21-22.

    According to the Volcanic Ash Advisory Center (VAAC) Tokyo, that eruption sent volcanic ash to an estimated 38,000 feet (11.6 km) above sea level, which is now shifting at 20 kts in a NNE direction.

    ~~~~~~~

    On June 18, multiple major-level eruptions took place at Mexico’s Popocatépetl volcano in just 24 hours, continuing the stratovolcano’s powerful uptick of late.


    According to the Volcanic Ash Advisory Center (VAAC) Washington, the largest eruption fired a thick ash column to an estimated 42,000 feet (12.8 km) above sea level, and comfortably into the stratosphere.

    And on June 9, Sumatra’s incredibly active Sinabung Volcano exploded in spectacular fashion again, sending volcanic ash high into the atmosphere. The explosion also coincided with a minor G1 geomagnetic storm.

    The Volcanic Ash Advisory Center (VAAC) Darwin is warning of a thick ash plume rising to a lofty 55,000 feet (16.7 km).

    ~~~~~~~

    And another one just popped….

    Manam Volcano just Exploded to 50,000 feet (15.2 km)

    June 28, 2019 Cap Allon

    Yet another high-impact eruption took place at Manam volcano, Papua New Guinea on Friday June 28 — following the previous day’s explosion to 12.2 km, and the general uptick which began last year.

    A thick volcanic ash plume, rising to at least 50,000 feet (15.2 km) above sea level, was spotted by the Volcanic Ash Advisory Center (VAAC) Darwin at 06:59 UTC on June 28 using HIMAWARI-8 satellite imagery.

    The eruption comes hot on the heels of yesterday’s ejection to 40,000 feet (12.2 km).

    From: https://electroverse.net/manam-volca...-feet-15-2-km/

    With all this volcanic debris in the atmosphere will our fellow cAGW believers now say ‘global cooling’?

    Particulates ejected to altitudes above 32,800 feet (10 km) have a direct cooling effect on the planet.

    From https://electroverse.net/category/vo...smic-activity/


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    "La réalité est un rêve que l'on fait atterrir" San Antonio AKA F. Dard

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    Default Re: Exceptionally Powerful Volcanic Explosions and Activities

    Peruvian volcano cuts loose – Lots of ash

    by Robert
    July 20, 2019

    Powerful explosive eruption at Ubinas volcano in Peru.
    Ash plumes rising around 6km (20,000ft) above the volcano – 12km (40,000ft) above sea level.


    Volcanic ash rising above Ubinas volcano on July 19, 2019 – Image credit: The Geophysical Institute of Peru (IGP) Seismic activity is very high: Around 400 earthquakes per day.

    Ashfall was reported in the villages across the region – in the towns of Ubinas, Escacha, Anascapa, Matalaque, San Miguel, Huarina and Tonohaya.

    Ubinas is Peru’s most active volcano.

    https://www.volcanodiscovery.com/ubi...-eruption.html

    https://watchers.news/2019/07/19/ubi...-july-19-2019/

    See video here:
    https://twitter.com/i/status/1152242528852348933
    "La réalité est un rêve que l'on fait atterrir" San Antonio AKA F. Dard

    Troll-hood motto: Never, ever, however, whatsoever, to anyone, a point concede.

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