Global Volcanism Program

Global Volcanism Program The Smithsonian's Global Volcanism Program seeks better understanding of all volcanoes through docum

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Photos from Volcano Disaster Assistance Program's post
10/26/2021

Photos from Volcano Disaster Assistance Program's post

Random Volcano Monday: Ostry (Russia)Conical Ostry volcano, its slopes partially mantled by glaciers, is a late-Quaterna...
10/25/2021
Global Volcanism Program | Ostry

Random Volcano Monday: Ostry (Russia)

Conical Ostry volcano, its slopes partially mantled by glaciers, is a late-Quaternary stratovolcano that rises to 2552 m, forming one of the highest peaks of the northern Sredinny Range. Ostry, also known as Ostraya, is located on the western side of the major NE-trending graben along the axis of the northern Sredinny Range. An unnamed 2127-m-high cinder cone on the SW flank of Ostry, informally referred to as "Cone X," erupted about 4000 years ago, producing a basaltic lava flow.
https://volcano.si.edu/volcano.cfm?vn=300680

Conical Ostry volcano, its slopes partially mantled by glaciers, is a late-Quaternary stratovolcano that rises to 2552 m, forming one of the highest peaks of the northern Sredinny Range. Ostry, also known as Ostraya, is located on the western side of the major NE-trending graben along the axis of th...

Today for #VolcanoPhotoFriday we're highlighting floating pumice rafts as shown here from the Curacoa submarine eruption...
10/22/2021
Global Volcanism Program | Image GVP-00501

Today for #VolcanoPhotoFriday we're highlighting floating pumice rafts as shown here from the Curacoa submarine eruption in July 1973. The pumice covered an area of more than 100 km2 and spread as far as 200 km W of the volcano.

Volcano image from the Smithsonian's Global Volcanism Program (GVP).

10/21/2021
volcano.si.edu

The La Palma report for the Smithsonian / USGS Weekly Volcanic Activity Report for 13-19 October 2021 is now available. Sorry for the delay; we had a small production problem yesterday following some server issues.

The Smithsonian / USGS Weekly Volcanic Activity Report for 13 October-19 October 2021 includes the following volcanoes. ...
10/20/2021
Smithsonian / USGS Weekly Volcanic Activity Report

The Smithsonian / USGS Weekly Volcanic Activity Report for 13 October-19 October 2021 includes the following volcanoes. Please visit the website for the full reports.

New Activity/Unrest:
- Asosan, Kyushu (Japan)
- Kilauea, Hawaiian Islands (USA)
- Manam, Papua New Guinea
- Pagan, Mariana Islands (USA)
- Rabaul, New Britain (Papua New Guinea)
- Vulcano, Aeolian Islands (Italy)

Ongoing Activity:
- Aira, Kyushu (Japan)
- Bagana, Bougainville (Papua New Guinea)
- Ebeko, Paramushir Island (Russia)
- Erta Ale, Ethiopia
- Great Sitkin, Andreanof Islands (USA)
- Karymsky, Eastern Kamchatka (Russia)
- Kavachi, Solomon Islands
- Krysuvik-Trolladyngja, Iceland
- Lewotolok, Lembata Island (Indonesia)
- Merapi, Central Java (Indonesia)
- Pavlof, United States
- Rincon de la Vieja, Costa Rica
- Semeru, Eastern Java (Indonesia)
- Semisopochnoi, Aleutian Islands (USA)
- Sheveluch, Central Kamchatka (Russia)
- Suwanosejima, Ryukyu Islands (Japan)
- Taal, Luzon (Philippines)
- Whakaari/White Island, North Island (New Zealand)

The Weekly Volcanic Activity Report is a cooperative project between the Smithsonian's Global Volcanism Program and the US Geological Survey's Volcano Hazards Program. Updated by 2300 UTC every Wednesday, these reports are preliminary and subject to change as events are studied in more detail. This is not a comprehensive list of all of Earth's volcanoes erupting during the week, but rather a summary of activity at volcanoes that meet specific criteria. Carefully reviewed, detailed reports about recent activity are published in issues of the Bulletin of the Global Volcanism Network.

The Weekly Volcanic Activity Report is a cooperative project between the Smithsonian's Global Volcanism Program and the US Geological Survey's Volcano Hazards Program.

10/19/2021

Mistranslation Tuesday: “Be wary of large volcanic blocks and pyroclastic flows that scatter along the trajectory of the eruption. Please give me.”
#VolMisComm #LavaLaughs

Random Volcano Monday: Ol Doinyo Lengai (Tanzania)The symmetrical Ol Doinyo Lengai is the only volcano known to have eru...
10/18/2021
Global Volcanism Program | Ol Doinyo Lengai

Random Volcano Monday: Ol Doinyo Lengai (Tanzania)

The symmetrical Ol Doinyo Lengai is the only volcano known to have erupted carbonatite tephras and lavas in historical time. The prominent stratovolcano, known to the Maasai as "The Mountain of God," rises abruptly above the broad plain south of Lake Natron in the Gregory Rift Valley. The cone-building stage ended about 15,000 years ago and was followed by periodic ejection of natrocarbonatitic and nephelinite tephra during the Holocene. Historical eruptions have consisted of smaller tephra ejections and emission of numerous natrocarbonatitic lava flows on the floor of the summit crater and occasionally down the upper flanks. The depth and morphology of the northern crater have changed dramatically during the course of historical eruptions, ranging from steep crater walls about 200 m deep in the mid-20th century to shallow platforms mostly filling the crater. Long-term lava effusion in the summit crater beginning in 1983 had by the turn of the century mostly filled the northern crater; by late 1998 lava had begun overflowing the crater rim.
https://volcano.si.edu/volcano.cfm?vn=222120

The symmetrical Ol Doinyo Lengai is the only volcano known to have erupted carbonatite tephras and lavas in historical time. The prominent stratovolcano, known to the Maasai as 'The Mountain of God,' rises abruptly above the broad plain south of Lake Natron in the Gregory Rift Valley. The cone-build...

Volcanoes of the World database update. There were 48 continuing eruptions as of 15 October 2021 (see link for full list...
10/15/2021
Global Volcanism Program | Current Eruptions

Volcanoes of the World database update. There were 48 continuing eruptions as of 15 October 2021 (see link for full list), with activity from 69 volcanoes and 22 new eruptions this year so far. Data subject to later revisions.

There are 50 volcanoes with continuing eruptions as of the Stop Dates provided, and as reported through 19 August 2021. Although detailed statistics are not kept on daily activity, generally there are around 20 volcanoes actively erupting at any particular time. The Smithsonian / USGS Weekly Volcani...

The Smithsonian / USGS Weekly Volcanic Activity Report for 6 October-12 October 2021 includes the following volcanoes. P...
10/13/2021
Smithsonian / USGS Weekly Volcanic Activity Report

The Smithsonian / USGS Weekly Volcanic Activity Report for 6 October-12 October 2021 includes the following volcanoes. Please visit the website for the full reports.

New Activity/Unrest:
- Kilauea, Hawaiian Islands (USA)
- La Palma, Spain

Ongoing Activity:
- Aira, Kyushu (Japan)
- Kadovar, Papua New Guinea
- Karymsky, Eastern Kamchatka (Russia)
- Lewotolok, Lembata Island (Indonesia)
- Merapi, Central Java (Indonesia)
- Nevados de Chillan, Chile
- Pavlof, United States
- Sabancaya, Peru
- Semisopochnoi, Aleutian Islands (USA)
- Sheveluch, Central Kamchatka (Russia)
- Stromboli, Aeolian Islands (Italy)
- Suwanosejima, Ryukyu Islands (Japan)

The Weekly Volcanic Activity Report is a cooperative project between the Smithsonian's Global Volcanism Program and the US Geological Survey's Volcano Hazards Program. Updated by 2300 UTC every Wednesday, these reports are preliminary and subject to change as events are studied in more detail. This is not a comprehensive list of all of Earth's volcanoes erupting during the week, but rather a summary of activity at volcanoes that meet specific criteria. Carefully reviewed, detailed reports about recent activity are published in issues of the Bulletin of the Global Volcanism Network.

The Weekly Volcanic Activity Report is a cooperative project between the Smithsonian's Global Volcanism Program and the US Geological Survey's Volcano Hazards Program.

10/12/2021

Mistranslation Tuesday: “At the same crater, the fire image is observed with a high-sensitivity surveillance camera at night throughout the period. Did. Volcanic earthquakes have been few. Volcanic tremors have not been observed. No.”
#VolMisComm #LavaLaughs

Random Volcano Monday: Talang (Indonesia)Talang, which forms a twin volcano with the extinct Pasar Arbaa volcano, lies E...
10/11/2021
Global Volcanism Program | Talang

Random Volcano Monday: Talang (Indonesia)

Talang, which forms a twin volcano with the extinct Pasar Arbaa volcano, lies ESE of the major city of Padang and rises NW of Dibawah Lake. Talang has two crater lakes on its flanks; the largest of these is 1 x 2 km wide Danau Talang. The summit exhibits fumarolic activity, but which lacks a crater. Historical eruptions have mostly involved small-to-moderate explosive activity first documented in the 19th century that originated from a series of small craters in a valley on the upper NE flank.
https://volcano.si.edu/volcano.cfm?vn=261160

Talang, which forms a twin volcano with the extinct Pasar Arbaa volcano, lies ESE of the major city of Padang and rises NW of Dibawah Lake. Talang has two crater lakes on its flanks; the largest of these is 1 x 2 km wide Danau Talang. The summit exhibits fumarolic activity, but which lacks a crater....

No, Yellowstone is not about to have *any* kind of eruption, except for hot water geysers, but it's still an amazing pla...
10/08/2021
Global Volcanism Program | Image GVP-03351

No, Yellowstone is not about to have *any* kind of eruption, except for hot water geysers, but it's still an amazing place to see. Fantastic geothermal features like this mudpot for #VolcanoPhotoFriday that looks like it has a lava flow.

Volcano image from the Smithsonian's Global Volcanism Program (GVP).

The Smithsonian / USGS Weekly Volcanic Activity Report for 29 September-5 October 2021 includes the following volcanoes....
10/06/2021
Smithsonian / USGS Weekly Volcanic Activity Report

The Smithsonian / USGS Weekly Volcanic Activity Report for 29 September-5 October 2021 includes the following volcanoes. Please visit the website for the full reports.

New Activity/Unrest:
- Kilauea, Hawaiian Islands (USA)
- La Palma, Spain
- Nyiragongo, DR Congo
- Vulcano, Aeolian Islands (Italy)

Ongoing Activity:
- Aira, Kyushu (Japan)
- Great Sitkin, Andreanof Islands (USA)
- Karymsky, Eastern Kamchatka (Russia)
- Katmai, United States
- Klyuchevskoy, Central Kamchatka (Russia)
- Krysuvik-Trolladyngja, Iceland
- Langila, New Britain (Papua New Guinea)
- Lewotolok, Lembata Island (Indonesia)
- Merapi, Central Java (Indonesia)
- Pavlof, United States
- Reventador, Ecuador
- Sangay, Ecuador
- Semisopochnoi, Aleutian Islands (USA)
- Sheveluch, Central Kamchatka (Russia)
- Suwanosejima, Ryukyu Islands (Japan)
- Taal, Luzon (Philippines)
- Telica, Nicaragua
- Yasur, Vanuatu

The Weekly Volcanic Activity Report is a cooperative project between the Smithsonian's Global Volcanism Program and the US Geological Survey's Volcano Hazards Program. Updated by 2300 UTC every Wednesday, these reports are preliminary and subject to change as events are studied in more detail. This is not a comprehensive list of all of Earth's volcanoes erupting during the week, but rather a summary of activity at volcanoes that meet specific criteria. Carefully reviewed, detailed reports about recent activity are published in issues of the Bulletin of the Global Volcanism Network.

The Weekly Volcanic Activity Report is a cooperative project between the Smithsonian's Global Volcanism Program and the US Geological Survey's Volcano Hazards Program.

10/05/2021

Mistranslation Tuesday: “High smoke thin cauliflower 150 m.”
#VolMisComm #LavaLaughs

Random Volcano Monday: Fueguino (Chile)A group of andesitic, columnar-jointed lava domes and pyroclastic cones up to 150...
10/04/2021
Global Volcanism Program | Fueguino

Random Volcano Monday: Fueguino (Chile)

A group of andesitic, columnar-jointed lava domes and pyroclastic cones up to 150 m high on Isla Cook mark the southernmost Holocene volcanoes of the Andes. The volcanoes, known as Volcán Cook or Volcán Fueguino, occupy a broad peninsula forming the SE end of the island. One of the cones, S of Bahía del Volcán, contains a 150-m-wide crater with a small lake. The lava domes and pyroclastic cones, possibly emplaced along N-S-trending faults, are unaffected by glacial erosion that scoured the underlying plutonic rocks. Passing navigators observed possible eruptive activity in the direction of Cook in 1712 and the eruption of incandescent ejecta in 1820.
https://volcano.si.edu/volcano.cfm?vn=358090

A group of andesitic, columnar-jointed lava domes and pyroclastic cones up to 150 m high on Isla Cook mark the southernmost Holocene volcanoes of the Andes. The volcanoes, known as Volcán Cook or Volcán Fueguino, occupy a broad peninsula forming the SE end of the island. One of the cones, S of Bah...

The legacy of volcanologist Richard "Dick" Stoiber, who died 20 years ago, lives on not only through his research, but a...
10/01/2021
Global Volcanism Program | Theme Collections | Richard

The legacy of volcanologist Richard "Dick" Stoiber, who died 20 years ago, lives on not only through his research, but also his many students. Now GVP has a gallery of some of his photos to feature for this #VolcanoPhotoFriday.

Collection of volcano images from the Smithsonian's Global Volcanism Program (GVP).

09/30/2021

HVO Kilauea RED/WARNING - ORANGE/WATCH status change to RED/WARNING.

Volcanic Activity Summary:

Kīlauea volcano is erupting. At approximately 3:20 p.m. HST on September 29, 2021, the USGS Hawaiian Volcano Observatory (HVO) detected glow in Kīlauea summit we**am images indicating that an eruption has commenced within Halemaʻumaʻu crater in Kīlauea’s summit caldera, within Hawai‘i Volcanoes National Park. We**am imagery shows fissures at the base of Halemaʻumaʻu crater generating lava flows on the surface of the lava lake that was active until May 2021.

The US Geological Survey Hawaiian Volcano Observatory (HVO) is elevating Kīlauea’s volcano alert level to from WATCH to WARNING and its aviation color code from ORANGE to RED as this new eruption and associated hazards are evaluated. The activity is confined to Halemaʻumaʻu and the hazards will be reassessed as the eruption progresses.

USGS volcano alert levels and aviation color codes are explained here: https://www.usgs.gov/natural-hazards/volcano-hazards/about-alert-levels

The opening phases of eruptions are dynamic and uncertain. HVO continues to monitor the volcano closely and will report any significant changes in future notices.

Stay informed about Kīlauea by following volcano updates and tracking current monitoring data on the HVO web page (https://www.usgs.gov/volcanoes/kilauea/volcano-updates) or by signing up to receive updates by email at this site: https://volcanoes.usgs.gov/vns2/.

HVO is in constant communication with Hawai‘i Volcanoes National Park as this situation evolves. The eruption is currently taking place entirely within the closed area of Hawai‘i Volcanoes National Park.

HVO is in constant communication with the County of Hawai‘i Civil Defense Agency.

Remarks:

HVO scientists will continue to monitor Kīlauea volcano closely and will issue additional messages as warranted by changing activity. Stay informed about Kīlauea by following volcano updates and tracking current monitoring data on the HVO web page (https://www.usgs.gov/volcanoes/kilauea/volcano-updates) or by signing up to receive updates by email at this site: https://volcanoes.usgs.gov/vns2/.

More Information:

Kīlauea activity summary also available by phone: (808) 967-8862
Kīlauea we**am images: https://www.usgs.gov/volcanoes/kilauea/we**ams
Kīlauea photos/video: https://www.usgs.gov/volcanoes/kilauea/photo-video-chronology
Kīlauea lava-flow maps: https://www.usgs.gov/volcanoes/kilauea/maps
Kīlauea FAQs: https://www.usgs.gov/volcanoes/kilauea/faqs

Hazard Analysis:

This new eruption at Kīlauea’s summit is occurring within a closed area of Hawai'i Volcanoes National Park. Therefore, high levels of volcanic gas are the primary hazard of concern, as this hazard can have far-reaching effects down-wind. Large amounts of volcanic gas—primarily water v***r (H2O), carbon dioxide (CO2), and sulfur dioxide (SO2)—are continuously released during eruptions of Kīlauea Volcano. As SO2 is released from the summit, it will react in the atmosphere to create the visible haze known as vog (volcanic smog) that has been observed downwind of Kīlauea. Vog creates the potential for airborne health hazards to residents and visitors, damages agricultural crops and other plants, and affects livestock. For more information on gas hazards at the summit of Kīlauea, please see: https://pubs.er.usgs.gov/publication/fs20173017. Vog information can be found at https://vog.ivhhn.org/.

Additional hazards include Pele's hair and other lightweight volcanic glass fragments from the lava fountains that will fall downwind of the fissure vents and dust the ground within a few hundred meters (yards) of the vent (s). Strong winds may waft lighter particles to greater distances. Residents should minimize exposure to these volcanic particles, which can cause skin and eye irritation.

Other significant hazards also remain around Kīlauea caldera from Halemaʻumaʻu crater wall instability, ground cracking, and rockfalls that can be enhanced by earthquakes within the area closed to the public. This underscores the extremely hazardous nature of Kīlauea caldera rim surrounding Halemaʻumaʻu crater, an area that has been closed to the public since late 2007.

For discussion of Kīlauea hazards, please see: https://www.usgs.gov/observatories/hawaiian-volcano-observatory/hazards

Please see the Hawaiʻi Volcanoes National Park website for visitor information: https://www.nps.gov/havo/index.htm. Visitors to Hawai'i Volcanoes National Park should note that under southerly (non-trade) wind conditions, there is potential for a dusting of powdery to gritty ash composed of volcanic glass and rock fragments. These ashfalls represent a minor hazard, but visitors should be aware that dustings of ash at areas around the Kīlauea summit are possible.

Contacts: [email protected]

Next Notice: The Hawaiian Volcano Observatory (HVO) continues to closely monitor Kīlauea's seismicity, deformation, and gas emissions for any changes in activity. HVO will now issue daily Kīlauea updates until further notice.

Subscribe to these messages:
https://volcanoes.usgs.gov/vns2/

Recent earthquakes in Hawaiʻi (map and list): https://www.usgs.gov/observatories/hawaiian-volcano-observatory/earthquakes

Explanation of Volcano Alert Levels and Aviation Color Codes: https://www.usgs.gov/natural-hazards/volcano-hazards/about-alert-levels

The Hawaiian Volcano Observatory is one of five volcano observatories within the U.S. Geological Survey and is responsible for monitoring volcanoes and earthquakes in Hawaiʻi.

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I like the new layout on the website
Stromboli volcano eruption 2019 from the deck of the SY GIOIA Solaris One 44. Video Stefano Berziga, voice Sophia. Sailing Yachts Asia sailingyachtsasia.com https://www.youtube.com/watch?v=7iBGkDAQu0A&fbclid=IwAR05e0hhZhGdQm6PbCB3RW6uEIzVnnImwnJvcoW-8RIy0Hh2rLsbk0BeB3I
Interesting page. Love it, but a bit hard to search eruption database. I need list of volcanoes erupted, say, between 350BC to 250 BC, regardless it's location. How to do that? Thank you very much.
Hi people here. I want to alert you about this. I am from Azores islands. And today I know that occured 4 earthquakes on the Reykjane Rigde located at 800 kms from southwest coast of Iceland. The Middle Atlantic Ridge is starting to move, and volcanologists and geologists must keep an eye on 2 points now:- one is Iceland, and Great Britain, and the other is Azores islands in the middle of North Atlantic. This islands are very vulcanic islands, and the Middle Atlantic Rigde pass trought this islands. The bigeest quake today near Iceland was 4,6 richter.
Is there no update for this week? I went to check for new updates earlier tonight and saw that the week of 20 February-26 February is still the most recent.
Takk fyrir :)
New post is up about a recent eruption on Mount Michael.
New post about a resumed thermal anomaly on Saunders Island.
Galapagos låter spännande.