Volcanoes
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Attention

Dukono volcano sends volcanic ash cloud 6000ft into sky in Indonesia

Liam Doyle
The Express (UK)
Tue, 12 Feb 2019 14:27 UTC
Dukono volcano
Dukono volcano
The Dukono volcano in Indonesia has erupted over the past few days, ejecting columns of ash high into the air, just months after violent activity from Mount Agung shook the nation.

Indonesia's Mount Dukono - based on Halmahera island to the east of the country - has been ejecting ash over the last day, with a continuous fog exploding from the main crater, according to Indonesia's volcanic survey. Indonesia's 127 active volcanoes all pose significant risks to some five million people living nearby. Mount Agung alone killed more than 1,000 people in March last year. While Mount Dukono is not quite as dangerous yet, it is one of the country's most active volcanoes.


Comment: Details of other volcanoes currently undergoing activity in the region: Mountains rumbling: Five most active volcanoes in the Indonesian archipelago

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Attention

Mountains rumbling: Five most active volcanoes in the Indonesian archipelago

Kharishar Kahfi
The Jakarta Post
Tue, 12 Feb 2019 19:10 UTC
Lava streams down from Anak Krakatau
© AFP/Ferdi AwedLava streams down from Anak Krakatau (Child of Krakatoa) volcano during an eruption as seen from Rakata island in South Lampung on July 19, 2018.
The eruption of little-known volcano Mount Karangetang in Siau Island, North Sulawesi, has added to the list of active volcanoes that have recently awakened in the archipelago, home to more than 230 million people.

Indonesia has more than 120 volcanoes, 20 of which have been considered to be the most active, according to the latest data from the Volcanology and Geological Disaster Mitigation Center (PVMBG).

The most active volcanoes are placed into three alert levels by local authorities: level II of Waspada (Caution), level III of Siaga (Alert) and level IV of Awas (Danger) - the highest on the alert level.

Here are five of the most active volcanoes that have rumbled recently:

Mount Karangetang

Mount Karangetang in Siau Island, North Sulawesi, located roughly 146 kilometers from the provincial capital of Manado, has been erupting since November last year. Its activity has only increased since then, prompting the PVMBG to declare an Alert status in December.

As of Sunday, local observation posts said that volcanic activity had been fluctuating, with a number of volcanic earthquakes occurring in the last several days. Officials also observed a flow of lava from one of the craters.
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Attention

Poás Volcano in Costa Rica registers overnight eruption, National Park closed

Alejandro Zúñiga
The Tico Times
Mon, 11 Feb 2019 15:58 UTC
volcano
Poás Volcano erupted early Monday morning, prompting the closure of its national park.

According to the Volcanological and Seismological Observatory of Costa Rica (OVSICORI), the eruption began at 1:50 a.m. Monday and sent a column of ash 200 meters above the crater.

OVSICORI shared a time-lapse video of the volcanic activity:

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Attention

Erupting Mount Merapi volcano in Indonesia spews ash, lava


Pakistan Today
Fri, 08 Feb 2019 12:23 UTC
volcano
Indonesia's Mount Merapi, one of the world's most active volcanoes, has spewed a plume of grey ash into the sky as fiery red molten lava streamed down from its crater.

Authorities did not raise the rumbling volcano's alert status after the eruption on Thursday evening.

But any activity at Merapi raises concern and local residents have previously been ordered to stay outside a five-kilometre (three-mile) no-go zone around the crater near Indonesia's cultural capital Yogyakarta.

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Attention

Volcano spews lava in fresh eruption on Indonesia's Siau island


Euronews
Fri, 08 Feb 2019 12:12 UTC
VOLCANO
A volcano on the Indonesian island of Siau sent lava and searing gas out of its crater on Thursday, prompting evacuation preparations.

Authorities expanded the danger zone around Mount Karangetang to 4km from its crater in response to the eruption.

Just hours later, Mount Merapi on the island of Java shot out hot clouds and lava.

No casualties or damage were reported and the volcanoes' alert levels were not raised, officials said.

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Frog

Four year old island spawned by hidden underwater volcano in South Pacific is now teeming with life

Peter Dockrill
Science Alert
Mon, 04 Feb 2019 00:00 UTC
Hunga Tonga-Hunga Ha'apai, Hunga Tonga
Hunga Tonga is only the third known volcanic pop-up like this to have arisen in the last 150 years.
Four years ago, this island arose out of almost nothing: a sprawling formation of jutting rock popping up in the South Pacific, where once there were only waves.

This unbelievable place - emerging in between two existing islands of the Kingdom of Tonga - has no official name, but the locals call it Hunga Tonga-Hunga Ha'apai (Hunga Tonga), after its neighbours and the hidden underwater volcano that spawned it.

Scientists have been studying Hunga Tonga for years, to learn more about how exceedingly rare volcanic islands like this take shape.

Incredibly, Hunga Tonga is only the third known volcanic pop-up like this to have arisen in the last 150 years, so it's an incredible scientific opportunity to investigate its esoteric environment - and especially to see how that landscape might resemble other strange and rocky terrain (including, hypothetically, that of Mars).

Comment: NASA's Goddard Center published the following video on the birth of the island:
In late December 2014 into early 2015, a submarine volcano in the South Pacific Kingdom of Tonga erupted, sending a violent stream of steam, ash and rock into the air. When the ash finally settled in January 2015, a newborn island with a 400-foot summit nestled between two older islands - visible to satellites in space. The newly formed Tongan island, unofficially known as Hunga Tonga-Hunga Ha'apai after its neighbors, was initially projected to last a few months. Now it has a 6- to 30-year lease on life, according to a new NASA study.


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Fire

Lava flow from Indonesia's Karangetang volcano forces evacuations


NT News
Tue, 05 Feb 2019 05:30 UTC
Lava flow produced by Mount Karangetang on February 3, 2019
© ESA/Sentinel-2Lava flow produced by Mount Karangetang on February 3, 2019.

An eruption of one of Indonesia's most active volcanoes has sent lava and searing gas clouds out the crater and made villagers leave the slopes.

Yudia Tatipang, head of the Karangetang volcano observation post, said on Tuesday that authorities were still trying to evacuate nearly 600 residents living along the slopes of Mount Karangetang.

There were no immediate reports of injuries or serious damage.

He said the 1784-metre volcano located on Siau island of North Sulawesi province started spitting clouds of gas and lava on Sunday.

Late on Monday, hot ash tumbled down its slopes up to 300 metres, triggering panic among villagers.

Karangetang is one of about 130 active volcanoes in Indonesia. A major eruption in 2011 killed four people.


Source: Associated Press
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Attention

Enormous cavity and melting discovered beneath Antarctica's Thwaites Glacier - and it's growing

Peter Dockrill
Science Alert
Thu, 31 Jan 2019 20:50 UTC
Antarctica
Antarctica is not in a good place. In the space of only decades, the continent has lost trillions of tonnes of ice at alarming rates we can't keep up with, even in places we once thought were safe.

Now, a stunning new void has been revealed amidst this massive vanishing act, and it's a big one: a gigantic cavity growing under West Antarctica that scientists say covers two-thirds the footprint of Manhattan and stands almost 300 metres (984 ft) tall.

This huge opening at the bottom of the Thwaites Glacier - a mass infamously dubbed the "most dangerous glacier in the world" - is so big it represents an overt chunk of the estimated 252 billion tonnes of ice Antarctica loses every year.

Comment: The reason their models can't explain what's happening is because they're based on the incorrect premise of 'global warming'. They also somehow miss the much publicized fact of geothermal heating in the region - and it's not only happening in Antarctica: Also check out SOTT radio's: Behind the Headlines: Earth changes in an electric universe: Is climate change really man-made?

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Attention

Mount Merapi volcano in Indonesia unleashes river of lava


Perth Now
Wed, 30 Jan 2019 12:53 UTC
Mount Merapi erupting in May 2006
© Vincent Thian/APMount Merapi erupting in May 2006.
Indonesia's volatile Mount Merapi volcano has unleashed a river of lava that flowed 1400 metres down its slopes.

Kasbani, head of the Volcanology and Geological Hazard Mitigation Centre, says Merapi on the island of Java has entered an "effusive eruption phase."

Kasbani, who goes by a single name, said the volcanic material that spewed out late on Tuesday was the volcano's longest lava flow since it began erupting again in August.

He says the alert level of the volcano has not been raised.

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Seismograph

Scientists mystified as Yellowstone experiences record-breaking geyser activity


Sputnik
Tue, 29 Jan 2019 21:17 UTC
Yellowstone geyser
© CCO
A scientist from the US Geological Survey has branded 2018 "one of the most memorable years in a long time" for geyser watchers in their summary of seismic activity in Yellowstone. The Steamboat Geyser, considered the tallest active geyser in the world, as well as others, erupted unusually frequently last year.

The USGS is now back to work after the partial government shutdown, with Yellowstone's "2018 year in review" noting an unusual activity among the national park's geysers last year. In the Yellowstone Caldera Chronicles, USGS Volcano Observatory geophysicist Michael Poland has revealed that geysers became "the story of 2018", with the world's tallest active geyser, Steamboat, having a record-setting number of eruptions.

Although the gap between Steamboat spewing out hot water can sometimes last years, in 2018 it erupted 32 times, beating the 1964 record of 29 eruptions. Apart from the 1960s, a past period of unusually high activity occurred in the 1980s, according to the USGS. The eruptions began in March 2018, and after two additional outbursts scientists began to keep the geyser under closer observation, deploying sensors around it. This shed light on its plumbing system and eruptive patterns "in unprecedented detail", the review reads.
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