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Thu, 21 Feb 2019
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Volcanoes

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Erupting Mount Merapi volcano in Indonesia spews ash, lava

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.


Attention

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

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.


Frog

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

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.



Fire

Lava flow from Indonesia's Karangetang volcano forces evacuations

Lava flow produced by Mount Karangetang on February 3, 2019
© ESA/Sentinel-2
Lava 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

Attention

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

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?


Attention

Mount Merapi volcano in Indonesia unleashes river of lava

Mount Merapi erupting in May 2006
© Vincent Thian/AP
Mount 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.


Seismograph

Scientists mystified as Yellowstone experiences record-breaking geyser activity

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.

Attention

Etna volcano burps ash, covering southern snow slopes

etna
Volcanic ash covered the southern slope of Italy's highest volcano, Mount Etna following emissions from the Bocca Nuova Crater the night between Saturday and Sunday, footage filmed near Catania shows.

Images from the area show volcanic ash covering the snow and vehicles leading up to the crater.


Attention

Scientist reveals molten rock 'rising five metres a day' at Mount St Helens, Washington

Mount St Helen
© AMAZON
Mt St Helens is rising at 5m a day.
Mount St Helens could erupt again as scientists closely monitor a lava dome rising at five metres a day, a bombshell documentary revealed.

On May 18, 1980, Mount St Helens erupted in the US state of Washington. The blast, which measured 5 on the Volcanic Explosively Index, has been declared as the most disastrous volcanic eruption in modern US history. An huge column rose 80,000 feet into the atmosphere and deposited ash in 11 states, killing at least 57 people and causing more than $1billion (£770million) in damage.

Scientists are now closely watching the volcano to make sure they are prepared in case the same happens again.

Amazon Prime's "Mega Disaster: It's Happened Before, It Will Happen Again" series revealed how a team of volcanists monitor the ticking time bomb.

Rick LaHusen, from the United States Geological Survey (USGS), detailed how they use an instrument known as the "Spider" to keep an eye on volcanic activity.

Attention

WATCH: Popocatepetl volcano erupts in Mexico

Popocatepetl volcano

Popocatepetl volcano
The Popocatepetl volcano registered a strong explosion Tuesday evening in the states of Puebla and Morelos, in central Mexico, according to Mexico's civil protection authority.

The explosion caused lava and ashes to spew, with a smoke plume almost two miles high emanating from the volcano's dome.

Authorities have asked locals to remain in their homes.

No initial reports of damages or injuries have been reported.


Scource: CNN