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Alaska volcano erupts again, sends ash cloud over Aleutians

Alaska volcano erupts again, sends ash cloud over Aleutians

financialexpress.com

🚨 SHISHALDIN VOLCANO ALERT RAISED – AUGUST 25, 2025 🚨 The Alaska Volcano Observatory has raised Shishaldin’s alert level to ADVISORY (YELLOW) after a surge in seismic tremors, infrasound, and sulfur dioxide gas. Steaming from the summit has intensified. These are the same signals recorded before the 2023 eruption that disrupted international flights. Shishaldin erupts with little warning. Flight paths and communities near Unimak Island are now on alert. #Shishaldin #AlaskaVolcano #VolcanoAlert

🚨 SHISHALDIN VOLCANO ALERT RAISED – AUGUST 25, 2025 🚨 The Alaska Volcano Observatory has raised Shishaldin’s alert level to ADVISORY (YELLOW) after a surge in seismic tremors, infrasound, and sulfur dioxide gas. Steaming from the summit has intensified. These are the same signals recorded before the 2023 eruption that disrupted international flights. Shishaldin erupts with little warning. Flight paths and communities near Unimak Island are now on alert. #Shishaldin #AlaskaVolcano #VolcanoAlert

74.9K views9 months ago

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UPDATE: The Alaska Volcano Observatory says the most likely outcome for Mt. Spurr is an eruption similar to what occurred in 1953 and 1992. | Alaska's News Source

UPDATE: The Alaska Volcano Observatory says the most likely outcome for Mt. Spurr is an eruption similar to what occurred in 1953 and 1992. | Alaska's News Source

369.3K viewsMar 12, 2025

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Explosive eruption at Alaska's Shishaldin Volcano sends ash cloud to nearly 30,000 feet

Explosive eruption at Alaska's Shishaldin Volcano sends ash cloud to nearly 30,000 feet

Alaska officials raise alert level on Shishaldin volcano after 'increasing' unrest

Alaska officials raise alert level on Shishaldin volcano after 'increasing' unrest

Volcano Experts Say Alaska’s Mount Spurr is About to Erupt

Volcano Experts Say Alaska’s Mount Spurr is About to Erupt

What to know about recent volcanic eruptions

What to know about recent volcanic eruptions

Alaska volcano monitored for possible eruption amid 'volcanic unrest'

A giant volcano in Alaska is showing signs of an impending eruption. Significantly elevated levels of volcanic gas emissions were recently observed around Mount Spurr, which is located 75 miles from Anchorage that is home to nearly 300,000 people. The Alaska Volcano Observatory said the emissions 'confirm' that new magma is flowing beneath the volcano, indicating an foreseeable eruption. 📷 US Geological Survey / Alaska Volcano Observatory / Google Maps #volcano #alaska #nature #news | America N

2.3K viewsMar 14, 2025

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Alaska Volcano Wakes After 30 Years — And a Major City Is in Its Path

MSNStoryTrender

Great Sitkin Volcano (🌋ORANGE/WATCH) has been erupting since 2021! Watch the 2025 growth of the lava dome inside the summit crater in this animation built from radar satellite imagery. About 8 million cubic meters (~3200 Olympic pools) of lava erupted in 2025. #Alaska #alaska #volcano Caption: Animation of the lava dome growth throughout 2025 at Great Sitkin Volcano as observed in satellite radar imagery from the TerraSAR-X and TanDEM-X satellites. Lava started the year flowing northeast from t

23.8K views4 months ago

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The USGS Hawaiian Volcano Observatory Is A Trusted Source For The Kilauea Eruption

ForbesEthan Siegel

🚨ALASKA RING OF FIRE: VOLCANO ALERTS AND EARTHQUAKES TOGETHER In the last 48 hours, the Alaska Volcano Observatory has kept Great Sitkin Volcano at WATCH / ORANGE, confirming that lava is still actively erupting inside the summit crater. This eruption has been going on since 2021, slowly filling the crater with new lava. Small local earthquakes continue to be recorded near the volcano, a sign that magma is still moving and the system is not done yet. Shishaldin Volcano is currently at ADVISORY

225.4K views4 months ago

FacebookDivya Krishnamoorthy

⚠️🌍 BREAKING: Great Sitkin Volcano Erupts in Alaska’s Aleutian Islands 🌍⚠️ Great Sitkin, one of Alaska’s most active volcanoes, is showing powerful new activity: 🔥 Lava fills the summit crater — steady growth of lava flows now pushing down the southwest slope. ⛰️ Rockfalls triggered as unstable slopes collapse under the pressure of molten rock. 🚨 Hazards: Lava may enter valleys below, endangering terrain, ecosystems, and potential infrastructure. ✈️ Air traffic risk: Elevated heat, steaming,

7K views8 months ago

FacebookJoemar Sombero

After 100 years of silence, this Alaska volcano is showing signs of waking up

AS.comGreg Heilman

Mt. Spurr volcano still rumbling but activity has not increased significantly — yet

alaskasnewssource.com

On this day in 1989, Redoubt eruption triggered seismic shift in Alaska volcano research

Highest alert level issued after Alaskan volcano erupts

channel3000.com

Alaskan Volcano Awakens After 100+ Years of Silence

Volcanologists are closely monitoring Mount Spurr in Alaska as a series of small, shallow volcanic earthquakes continue beneath the volcano, indicating ongoing activity. Overflight video from Feb 7, 2025, shows small lake nestled in snowy crater. Follow USGS Volcanoes for the latest updates. Courtesy of Alaska Volcano Observatory / U.S. Geological Survey (USGS) | U.S. Department of the Interior

1.4M viewsFeb 20, 2025

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Today, we share an animated gif of the lava dome growing at Great Sitkin volcano in the Aleutian Islands, seen in a series of high-res satellite radar (SAR) images July 25-Aug 27, 2021. The dome grew from ~90 m to ~1000 m across and is continuing to grow. Great Sitkin is currently at Color Code ORANGE and Alert Level WATCH. More information always available at: avo.alaska.edu/activity/GreatSitkin.php Images: Simon Plank (German Aerospace Center, DLR). TerraSAR-X/TanDEM-X © DLR e.V. 2019. | Alask

4.5K viewsSep 3, 2021

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Shishaldin summit crater video, taken in the early evening of August 15, during an overflight to collect SO2 measurements of the plume. Video taken by K Mulliken, Alaska DGGS | Alaska Volcano Observatory

3K viewsAug 21, 2018

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AVO Information Statement Tuesday, July 29, 2025, 1:44 PM AKDT #Spurr (VNUM #313040) Current Volcano Alert Level: ADVISORY Current Aviation Color Code: YELLOW Summary • Monitoring data show that the shallow magma intrusion beneath Mount Spurr has stalled, but that magma deeper below the volcano may still be active. • The likelihood of an eruption is low but remains above background levels. We expect increases in seismic activity, gas emissions, surface deformation, and surface heating prior to a

10K views9 months ago

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AVO/USGS Volcanic Activity Notice Volcano: #Shishaldin (VNUM 311360) Current Volcano Alert Level: ADVISORY Previous Volcano Alert Level: NORMAL Current Aviation Color Code: YELLOW Previous Aviation Color Code: GREEN Issued: Monday, August 25, 2025, 11:48 AM AKDT Over the past month, signs of volcanic unrest at Shishaldin Volcano have been gradually increasing. Sulfur dioxide emissions have increased, a more vigorous vapor plume from the summit crater has been observed, and seismic and infrasound

120.7K views9 months ago

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Watch: Steam emits from summit peak of Alaska's Mount Spurr amid increased unrest

3 years of lava effusion at #GreatSitkin! After a brief explosive eruption on May 25, 2021, lava began oozing out of a vent in the summit crater in July 2021. The first sign of new lava at the surface was a July 23, 2021 satellite radar Terra-SAR-X image. These radar images can see through the persistent clouds of the Aleutian Islands and show an incredible time series animation of the lava flow growth. The most recent lava flows have oozed out above the vent and overtopped early emplaced lavas.

18.5K viewsJul 22, 2024

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Last week, a AVO field crew got a chance to check on mud volcanoes that lie just east of Glennallen, across the Copper River valley and near Mount Drum. These mud volcanoes are created by hot magma deep below the surface heating rocks above. This fluid rises through the layers of rock, and carries mud and carbon dioxide to the surface. One of these mud volcanoes, Shrub, forms a 350-ft high cone. This year our field crews found a line of about 25 new small springs, ranging in size from about a ha

16K viewsOct 4, 2024

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Continuing our anniversary posts marking 3 years of lava extrusion at #GreatSitkin, here’s a video collected Sept 3, 2023 by M. Loewen, showing the lava-ice contact and panning over to the active vent area. Alaska Volcano Observatory geologists were able to visit and sample Great Sitkin volcano’s active lava flow in September 2023. Analyses of these lavas shows that the composition is a fairly typical basaltic andesite. usgsvolcanoes USGS Volcanoes uafgi UAF Geophysical Institute Alaska DGGS #al

9.9K viewsJul 24, 2024

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Mount #Spurr update: On Dec 18, an AVO crew conducted a gas and observation flight of Mount #Spurr to measure volcanic gases (H2O, SO2, CO2, H2S) and do a photo survey of the summit region and Crater Peak. The new gas measurements showed no significant changes from the last gas flight at Spurr in June. The lake, which formed earlier this year, has greatly increased in size since June, and is mostly covered in snow and ice with some floating yellow sulfur. Enjoy this video taken during the flight

172.9K viewsDec 26, 2024

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Earthquakes, ground deformation, and melting of ice in the summit crater of Mount Spurr are some of the observations that have resulted in the volcano’s current elevated alert status. This animation shows the earthquakes detected by AVO in the proximity of Spurr volcano from December 1, 2024, to February 11, 2025. The earthquakes are presented in (a) a top-down view, (b) a N-S transect, and (c) a E-W transect cutting across Mount Spurr summit. Each earthquake, sized by their magnitude, first app

140.1K viewsFeb 14, 2025

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