Volcano watch

[Sevan Makaracı]

Japan: A new island appears in the Ogasawara Islands - November 2013

Active volcanoes (Sep 28, 2012)

Source

Source

"Of course all volcanoes will explode, as this is going to be a very severe pole shift. What about the months and years preceding the pole shift? It is no secret that Mammoth Lake and the caldera of Yellowstone are warming up, and the populace has been prepared for these occurrences by the movie Volcano where there, in the middle of LA, lava is bubbling up. In fact, there is a fault line running from the approximate San Diego/LA area, up into the Sierras, and this is liable to rupture rather violently during one of the quakes that precedes the pole shift by some months. Volcanic eruptions from that area in the Sierras can be expected. Will Mount St. Helen erupt? All volcanoes that have been active within the memory of man will begin spewing and burping and oozing, and many that were not expected to become active will reactive. "   ZetaTalk - Feb 15, 2000

[SongStar101]

Never-before-seen volcanic magma chamber discovered deep under Mediterranean, near Santorini

https://www.livescience.com/mediterranean-volcano-growing-magma-cha...

Using a technique to study seismic waves, researchers revealed a previously unknown magma chamber underneath a the Kolumbo submarine volcano.

A submarine volcano whose deadly eruption shattered the picturesque Greek island of Santorini nearly 400 years ago has a growing, never-before-seen magma chamber that could fuel another massive eruption within the next 150 years, a new study finds.

About 4 miles (7 kilometers) from Santorini, 1,640 feet (500 meters) under the ocean's surface, lies the Kolumbo volcano. Kolumbo is one of the most active submarine volcanoes in the world, and according to historical accounts (opens in new tab), its last eruption in A.D. 1650 killed at least 70 people. A study published Oct. 22, 2022, in the journal Geochemistry, Geophysics, Geosystems (opens in new tab) revealed that the previously undetected magma chamber growing beneath the Kolumbo volcano could lead to another eruption, thus endangering residents and tourists on Santorini.

Undersea volcanoes are monitored just like their on-land counterparts, but because undersea seismometers are challenging to install, there are fewer of them, which means scientists have less data on undersea volcanoes. In an attempt to overcome this problem, researchers decided to try a different technique to study the inner mechanics of Kolumbo. 

Data from the seismic recordings showed a significant decrease in velocity underneath the volcano, indicating the presence of a magma chamber, rather than just solid rock. Further calculations revealed that the magma chamber has been growing at a rate of 141 million cubic feet (4 million cubic meters) per year ever since its eruption in 1650. 

The chamber now holds roughly a third of a cubic mile (1.4 cubic km) of magma, the team found.

According to study first author Kajetan Chrapkiewicz (opens in new tab), a geophysicist at Imperial College London, the volume of magma could reach roughly half a cubic mile (2 cubic km) within the next 150 years. That was the estimated amount of magma Kolumbo ejected nearly 400 years ago.

[Juan F Martinez]

Mount Etna Smoke Rings

https://twitter.com/ZT_Followers/status/1607452888590356480

[Tracie Crespo]

https://www.khq.com/news/loud-boom-shakes-post-falls-area-cause-und...

Mount Semeru: Indonesia raises alert to highest level as volcano erupts on Java island

• Published
  2 hours ago

IMAGE SOURCE,REUTERS

Image caption,

The Gladak Perak bridge, rebuilt after last year's eruption, was badly damaged

Indonesia's Mount Semeru volcano has erupted, sending ash billowing into the sky and sparking evacuations on the country's main island, Java.

Authorities raised the volcano's warning status to the highest level, meaning its activity had escalated.

No injuries have been reported but nearly 2,000 people were evacuated from the area around the volcano.

People have been urged to keep at least 8 km (5 miles) away, as "hot avalanches" of lava poured from Semeru.

The increased threat level from three to four also means the danger threatens people's homes, a spokesman for Indonesia's Center for Volcanology and Geological Hazard Mitigation (PVMBG) told a national broadcaster.

The organization said a bridge being rebuilt after a previous eruption had been badly damaged.

Volcanic ash mixed with monsoon rain was falling on nearby villages and 1,969 people, including children and seniors, had been evacuated, the National Disaster Mitigation Agency (BNPB) said.

At least six villages had been affected, it added.

IMAGE SOURCE,REUTERS

Image caption,

Residents of six villages were evacuated by rescuers

Videos of the event showed the sky turning black as a massive plume of ash blocked the sunlight.

Japan issued a tsunami warning for its southernmost islands after the eruption, but meteorologists said no tidal changes had been observed.

Mount Semeru, in East Java province, began erupting at about 02:46 local time (19:46 GMT), authorities said.

Indonesia sits on the Pacific "Ring of Fire" where tectonic plates collide, causing frequent volcanic activity as well as earthquakes.

Semeru - also known as "The Great Mountain" - is the highest volcano in Java at 3,676m (12,060ft) and one of the most active. Its last erupted exactly one year ago, killing at least 50 people and leaving streets filled with mud and ash.

The eruption also follows a series of earthquakes on the west of Java island, located about 640 km (400 miles) east of Indonesia's capital Jakarta, including one last month that killed more than 300 people.

[Tracie Crespo]

https://www.volcanodiscovery.com/stromboli/news/193900/Stromboli-vo...

https://youtu.be/0dVJPowJjJA

Stromboli volcano (Eolian Islands, Italy): destabilization of crater rim released massive pyroclastic density current and lava flow

Sun, 9 Oct 2022, 13:37

13:37 PM | BY: MARTIN

Strong dense pyroclastic flow and lava flow at Stromboli volcano this morning (image: INGVvulcani)

Pyroclastic density current traveled beyond the coast as seen from Ginostra webcam (image: GST webcam)

Sharp peak in tremor accompanied the event (image: Marco Pistolesi)

The ongoing highly elevated activity at the volcano resulted in a spectacular, billowing pyroclastic flow tumbling down the Sciara del Fuoco this morning at about 07:20 local time.

INGV volcanologists concluded that a part of the rim of the crater (likely North)had collapsed that culminated in hot rock falls traveling beyond the coastline above water for about several dozens-to-hundred meters. Ash plumes separating from the flow (so-called phoenix clouds) rose several hundred meters above the volcano. The pyroclastic flow triggered 2 cm high sea waves registered by the tsunami warning system.

The event has been associated with a new lava flow as well, emerging from a vent in the summit area and simultaneously descending with the pyroclastic density current and pouring into the sea.

[jorge namour]

ICELAND REGION

New eruption at Fagradalsfjall. AUGUST 3 2022

https://www.facebook.com/volcanochaser/videos/1117030022183624

[Recall 15]

 Fuego Volcano Eruption 07/04/2022:

The Fuego Volcano increased its eruptive activity on the morning of Monday, July 4, and strong explosions, lava flow and pyroclastic flow are reported in the La Ceniza canyon, reported the National Institute of Seismology, Volcanology, Meteorology and Hydrology (Insivumeh).

In the Special Volcanological Bulletin BEFGO 56-2022, the Insivumeh reports an increase in the eruptive activity of the colossus.

From Direct Link:

https://www.prensalibre.com/guatemala/comunitario/volcan-de-fuego-a...

[jorge namour]

VOLCANO ETNA
ITALY REGION MAY 29 2022

https://www.facebook.com/Ilmondodeiterremoti/videos/1789566248101423

A new eruptive fracture has opened in the upper part of Etna.
During this morning a new eruptive fracture has opened in the upper part of the Bove Valley of Etna, a particular completely uninhabited area of the volcanic building where most of the lava flow ends at taken by the volcano’s top craters. The new fracture opened at an altitude of about 2,800 feet and is fueling a small lava flow that is slowly expanding across the upper valley.
The opening of this new fracture came after yesterday the volcanic tremor levels suffered a significant decrease which was accompanied by the cessation of the Strombolian activity that was ongoing in the part and summit of the southeast crater from last May 12th, the day it was the effusive eruption has started, attracting many tourists and curious locals.

[Juan F Martinez]

Volcanic activity worldwide 1 May 2022: Semeru volcano, Reventador, Pavlof, Nevado del Ruiz, Sabanca...

https://www.volcanodiscovery.com/volcano-activity/news/179348/Volca...  

[Yvonne Lawson]

Tonga issues Tsunami warning after undersea volcano in the Pacific erupts sending ash 12miles into sky as four-foot waves smash into island nation

• Tonga Meteorological Services said tsunami warning was in effect for all Tonga 
• Authorities in nearby Fiji also issued a warning, telling people to avoid shoreline
• Dramatic video showed huge waves crashing into homes and buildings 
• A convoy of police and military troops evacuated Tonga's King from his palace
• Dramatic satellite footage of the massive volcanic eruption went viral online 

Dramatic official aerial maps showed the eruption cloud over Tonga after the Hunga-Tonga-Hunga-Ha'apai volcanco erupted (pictured, satellite images of the volanic eruption in the Pacific Ocean on Saturday)

'A 1.2 metre tsunami wave has been observed at Nukualofa,' Australia's Bureau of Meteorology tweeted. The maximum tsunami wave recorded following Friday's explosion was 30 centimetres.  

The Tonga Meteorological Services said the tsunami warning was in effect for all of Tonga. 

The eruption was so intense it was heard as 'loud thunder sounds' in Fiji more than 500 miles away, officials in Suva said. 

Authorities in Fiji also issued a warning, telling people to avoid the shoreline due to strong currents and dangerous waves. 

Victorina Kioa of the Tonga Public Service Commission said Friday that people should 'keep away from areas of warning which are low-lying coastal areas, reefs and beaches.'

The head of Tonga Geological Services Taaniela Kula urged people to stay indoors, wear a mask if they were outside and cover rainwater reservoirs and rainwater harvesting systems.

The Pacific Tsunami Warning Centre issued a 'tsunami advisory' for American Samoa, saying there was a threat of 'sea level fluctuations and strong ocean currents that could be a hazard along beaches.'

A tsunami has struck Tonga sending terrified locals fleeing for high ground as huge waves crashed over roads and into homes (pictured, tsunami waves begin to overwhelm coastal homes in Tonga on Saturday)

Earlier, the Matangi Tonga news site reported that scientists had observed massive explosions, thunder and lightning near the volcano after it started erupting Friday.

The site said satellite images showed a three-mile-wide plume of ash, steam and gas rising about 12 miles into the air.

More than 1,400 miles away in New Zealand, officials warned of storm surges from the eruption.

Read more :  https://www.dailymail.co.uk/news/article-10405447/Tonga-issues-tsun...   

[KM]

https://watchers.news/2021/12/04/semeru-volcano-eruption-indonesia-...

High-level eruption at Semeru volcano, ash to 15.2 km (50 000 feet) a.s.l., Indonesia

A high-level eruption took place at Semeru volcano, East Java, Indonesia at around 07:00 UTC on December 4, 2021. The Aviation Color Code was raised to Red.

At 09:20 UTC, the ash cloud was estimated rising up to 15.2 km (50 000 feet) above sea level, according to the Darwin VAAC VA Advisory released at 09:48 UTC.¹

"Volcanic ash observed on latest RGB and Visible satellite imagery moving SW of the summit. Ash seems to have detached from the summit and continues to move SW. IR temperature of -85 °C (-121 °F) obtained correspond to 15.2 km (50 000 feet) a.s.l."

Ash has reportedly completely blocked out the Sun over the area.

Some users on social media are reporting fast-flowing lahars.