Tsunami waves surged ashore the coast of Tonga on Jan. 15 after the Hunga Tonga-Hunga Haapai volcano erupted about 40 miles north of the Pacific nation. I guess I trust the science on it, Kluting said. Tonga's strange volcanic eruption was even more massive than we knew . The Alaska Volcano Observatory is a cooperative program of the U.S. Geological Survey, the University of Alaska Fairbanks Geophysical Institute, and the Alaska Division of Geological and Geophysical Surveys. So far, none of the small communities near the volcanoes have been affected, Chris Waythomas, a geologist with the Alaska Volcano Observatory, said Thursday. A sonic boom could be. Our average number of volcanoes that erupt in a year in Alaska is only two. The Alaska Volcano Observatory is a cooperative program of the U.S. Geological Survey, the University of Alaska Fairbanks Geophysical Institute, and the Alaska Division of Geological and Geophysical Surveys. The nearest community, King Cove, is located 30 mi (48 km) to the southwest of Pavlof. Alaskans from Anchorage to Fairbanks and Cordova, along the Kenai Peninsula and elsewhere, reported deep, thunder-like blasts and booms early Saturday. Along a remote, roughly 800-mile stretch of Alaska's Aleutian island chain, three volcanoes are erupting at the same time, with at least two spewing low levels of ash and steam. The most recent significant period of eruption began in February 2001 and produced 3 explosive events that generated ash clouds as high as 39,000 ft (11.8 km) above sea level. ". The volcano is a composite structure consisting of an older dissected volcano and a younger parasitic cone with a 1.5 km-diameter summit crater. Three remote Alaska volcanos are each in a state of eruption, one producing lava and the other two blowing steam and ash. Eruptive activity is generally characterized by sporadic Strombolian lava fountaining continuing for a several-month period. Mount Edgecumbe is now considered a high risk volcano, one step below the states very high risk volcanoes: Augustine, Spurr, Redoubt, Akutan and Makushin. The volcano is located about 45 miles (75 km) west of the community of Nikolski, and 940 miles (1500 km) southwest of Anchorage. We were inside and we heard something, kind of like a low rumbling. Alaska, United States 2009 20 2009 Mount Redoubt eruptive activity: 4 Kasatochi: Alaska, United States 2008 13.7 4 Chaitn: Chile 2008 30 1: On May 2, 2008, Chaitn Volcano in southeastern Chile erupted for the first time since 1640. I guess I trust the science on it, Kluting said. Recent Eruption By Klauea Klauea volcano is erupting. ALASKA VOLCANO OBSERVATORY DAILY UPDATE U.S. Geological Survey Tuesday, February 28, 2023, 1:05 PM AKST (Tuesday, February 28, 2023, 22:05 UTC) GREAT SITKIN (VNUM #311120) 524'35" N 1766'39" W, Summit Elevation 5709 ft (1740 m) Current Volcano Alert Level: WATCH Current Aviation Color Code: ORANGE Elevated surface temperatures in the summit crater are occasionally being observed but at reduced frequency and strength. It definitely has moved up, said Cheryl Cameron, a state geologist who works at the volcano observatory. It might not erupt. Special thanks to Dr. David Fee. The ongoing earthquake swarm near Takawangha volcano continued over the past week, although seismic data from the local network experienced an outage over the past day which was resolved this morning. When operational,Cleveland volcano is monitored by only three seismic stations, which restricts AVO's ability to precisely locate earthquakes and detect precursory unrest that may lead to an explosive eruption. DEIJ Policy | Ethics Policy | Privacy Policy. Quotes displayed in real-time or delayed by at least 15 minutes. Edgecumbe in Sitka in this 2011 photo. I have certainly heard from people that are very concerned and feel like theyre scared. All rights reserved. Hours later, it became clear that what they heard was caused by the eruption of an undersea volcano near Tonga nearly 6,000 miles away. Risk isnt just the likelihood of an eruption, Coombs said. AVO monitors Aniakchak with a local network, which consists of six seismometers, a web camera, and a single infrasound sensor, as well as satellite remote sensing data and regional infrasound and lightning networks. Hearing a volcano, or any sound, so far away from its origin is a pretty rare phenomenon, said David Fee. This stock image shows Mount Edgecumbe in Sitka, Alaska. After talking with Cheryl and crew, I think that the monitoring works. Nothing significant was observed in satellite data this week, including some mostly clear and partly cloudy views. But the implication is that dormant volcanoes might erupt again," Pyle said. (3 km) above sea level, have characterized the recent activity at Semisopochnoi. Three Volcanoes Are Erupting Simultaneously in Alaska Scientists continue to monitor activity in Aleutians, other U.S. sites David Kindy Correspondent August 12, 2021 A view of the Aghileen. Semisopochnoi is monitored by local seismic and infrasound sensors, satellite data, web cameras, and regional infrasound and lightning networks. A four-foot tsunami wave was reported to. In volcano preparedness, knowing where the next socially disruptive eruption may take place is half the battle. When I looked at the data this morning, it was pointing back at that volcano. Then she considered a range of possibilities: a moose digging near her basement, artillery exercises at Joint Base Elmendorf-Richardson across the inlet. Satellite images showed the spectacular eruption that took place Saturday evening, with a plume of ash, steam and gas rising like a mushroom above the blue Pacific waters. 2. the Wrangell Volcanic Belt of Alaska and adjacent Yukon Territory. You've successfully subscribed to this newsletter! According to the U.S . Update the categories youd like to receive notifications about. Pavlof Volcano is a snow- and ice-covered stratovolcano located on the southwestern end of the Alaska Peninsula about 592 mi (953 km) southwest of Anchorage. Inan October paperpublished in the journal Geophysical Research Letters, scientist Ronni Grapenthin noted that the ground on the east side of the volcano was bulging outward at a rate faster than any other volcano in Alaska. She warned pilots to use caution when flying nearby and to follow the observatorys advisories, but added that the eruptions dont pose any significant threat to people.. He said if activity increases, Adak could get ashfall from Great Sitkin, located on an island about 27 miles away. Japan has . The eruption started almost two weeks ago and have steadily grown stronger, but they do not yet pose a concern to experts. Alaska Beacon is part of States Newsroom, a network of news bureaus supported by grants and a coalition of donors as a 501c(3) public charity. A sonic boom could be. Other volcanoes have had similar amounts of deformation without erupting, Coombs said, noting that the ground aroundLaguna del Maule in Chilehas been bulging outward even more quickly than Edgecumbe, and for a longer period, without an eruption. In 2020, erupting volcanoes included Taal Volcano in the Philippines, La Cumbre in . Other volcanoes have had similar amounts of deformation without erupting, Coombs said, noting that the ground around. Early data suggests the volcanic . AVO runs these models when a volcano is restless by assuming a reasonable hypothetical eruption, to provide a pre-eruptive forecast of areas likely to be affected. Cameron said the observatory is also planning a meeting with Sitka residents to explain whats going on with the volcano. Small earthquakes occured at the rate of about 1 to 2 per hour in the vicinity of Trident Volcano during the past 24 hours. Low-level volcanic tremor was detected in seismic data over the past day. Hometown Alaska: Behind the scenes at the Fur Rondy Melodrama, Anchorages IMAX movie theater spared from bankruptcy closure for now, Alaska News Nightly: Wednesday, March 1, 2023, Anchorage Assembly member wants to ban the city from using of facial recognition technology, Kodiak Island Boroughs mayor becomes its city manager. Active lava. The sounds were also heard in Canada. It might not erupt. Alaska Beacon maintains editorial independence. Of these volcanoes, about 90 have been active within the last 10,000 years (and might be expected to erupt again), and more than 50 have been active within historical time (since about 1760, for Alaska). OTHER ALASKA VOLCANOESInformation on all Alaska volcanoes is available at: http://www.avo.alaska.edu.For definitions of Aviation Color Codes and Volcano Alert Levels, see: http://www.avo.alaska.edu/color_codes.phpSUBSCRIBE TO VOLCANO ALERT MESSAGES by email: http://volcanoes.usgs.gov/vns/FOLLOW AVO ON FACEBOOK: https://facebook.com/alaska.avoFOLLOW AVO ON TWITTER: https://twitter.com/alaska_avo, Michelle Coombs, Scientist-in-Charge, USGS mcoombs@usgs.gov (907) 786-7497, David Fee, Coordinating Scientist, UAFGI dfee1@alaska.edu (907) 322-4085. AVO monitors Trident Volcano with a local network of seismometers, a webcam, remote sensing data, and regional infrasound and lightning networks. The impact of volcanic eruptions can be felt from hundreds of miles away. I have certainly heard from people that are very concerned and feel like theyre scared. Alaska Beacon is part of States Newsroom, a network of news bureaus supported by grants and a coalition of donors as a 501c(3) public charity. Takawangha volcano is monitored by local seismic and infrasound sensors, satellite data, and regional infrasound and lightning networks. Internally, how we think about Edgecumbe has changed. ALASKA VOLCANO OBSERVATORY DAILY UPDATE U.S. Geological Survey Wednesday, March 1, 2023, 1:23 PM AKST (Wednesday, March 1, . They can measure very small changes in the shape of the Earth's surface," Pyle said. Now, 73,000 people live in the region. The current period of seismic unrest began in October 2022. The U.S. has more volcanoes than any other country in the world, most of which are located in Alaska. The current period of seismic unrest began on August 24, 2022. Wednesday, March 1, 2023, 1:23 PM AKST (Wednesday, March 1, 2023, 22:23 UTC). . Elevated surface temperatures and sulfur dioxide emissions had prompted AVO to raise the Aviation Color Code and Volcano Alert Level from UNASSIGNED/UNASSIGNED to YELLOW/ADVISORY on May 11, 2022. The most recent eruption began in December 2021, with gas, steam, and ash plumes rising about 12 kilometers (7.5 miles) into the air. The high, isolated massif of Sheveluch volcano (also spelled Shiveluch) rises above the lowlands NNE of the Kliuchevskaya volcano group. Three volcanoes are erupting across the Aleutian Range Great Sitkin and Semisopochnoi in the Aleutian Islands and Pavlof Volcano on the Alaska Peninsula. Activity has been detected under a dormant volcano near Sitka, Alaska. The movement doesnt mean an eruption will happen soon or even at all from Southeast Alaskas most prominent volcano, but its significant enough that the observatory has raised the volcanos threat level. The chance of such a supervolcano eruption happening. Pavlof and its twin volcano to the NE, 2142-m-high Pavlof Sister, form a dramatic pair of symmetrical, glacier-covered stratovolcanoes that tower above Pavlof and Volcano bays. The latter volcano spewed an ash cloud about 10,000 feet into the air on an uninhabited island. If it does erupt, we expect a lot more activity before that happens, said Michelle Coombs, a USGS geologist and scientist-in-charge at the Alaska Volcano Observatory. Partially because of their experience, Kluting and Turley have been following events more closely than most. The observation of ash deposits this week was accompanied by periods of elevated seismicity and infrasound signals observed on the local geophysical network, which were likely due to weak explosive activity. As a result, many have described it as being "dormant.". Scientists continue to closely monitor the volcanoes for signs of changes. The ash from Novarupta was launched over 100,000 feet (32 kilometers . Semisopochnoi volcano is monitored by local seismic and infrasound sensors . In recent years, it breached sea level during a 2009 eruption while in 2015 it spewed so many large rocks and ash into the air that when they settled a new island had formed 2 kilometers long by 1 . Meanwhile, the Great Sitkin Volcano has a confirmed lava fountain at its summit, which people in the nearby community of Adak can see. Everyone Practices Cancel Culture | Opinion, Deplatforming Free Speech is Dangerous | Opinion. In an October paper published in the journal Geophysical Research Letters, scientist Ronni Grapenthin noted that the ground on the east side of the volcano was bulging outward at a rate faster than any other volcano in Alaska. The volcano has beenerupting since 2018, but has seen increased explosions in recent weeks. Mention of trade names or commercial products does not constitute their endorsement by the U.S. Geological Survey. Volcano page | Alaska Earthquake Center Recent Volcano Seismicity November 29 - February 28, 2023 The chart shows how much earthquake activity we are detecting at different volcanoes relative to their background levels. Satellite images were mostly cloudy during the last 24 hours. Fee was also awake in the early hours of Saturday morning, with his baby and wife in Fairbanks. Weakly elevated surface temperatures were observed once in satellite data during the week, although most views of the summit were obscured by clouds. Alaska Beacon is part of States Newsroom, a network of news bureaus supported by grants and a coalition of donors as a 501c(3) public charity. The Alaska Volcano Observatory is planning to install a series of seismic instruments on Mount Edgecumbe near Sitka afterpreliminary measurementsshowed magma moving deep below the Mount Fuji-shaped volcano. Seismicity remains above background levels and is characterized by weak, low-frequency earthquakes. A volcano briefly erupted Tuesday night in the central Aleutian Islands near Adak. Small eruptions producing minor ash deposits within the vicinity of the active north crater of Mount Young and ash clouds usually under 10,000 ft (3 km) above sea level have characterized the recent periods of activity. Follow Alaska Beacon on Facebook and Twitter. The volcano is about 4.4 mi (7 km) in diameter and currently has an active vent on the east side close to the summit. No significant activity was observed in mostly cloudy web camera views and satellite images. SUBSCRIBE TO THE PARTING SHOT WITH H. ALAN SCOTT In Wasilla, Willoya at first thought the sound couldve been caused by her tea kettle. It is located 40 mi (65 km) northeast of Amchitka Island and 130 mi (200 km) west of Adak. Market data provided by Factset. In an October paper published in the journal Geophysical Research Letters, scientist Ronni Grapenthin noted that the ground on the east side of the volcano was bulging outward at a rate faster than any other volcano in Alaska. The eruptions do not pose a threat to any nearby community due to the location of the Aleutian island chain, an 800-mile stretch of islands that ring the Bering Sea. Source: US Geological Survey Alaska Volcano Observatory (AVO)---From: Global Volcanism Program, 2023. There were 73 confirmed eruptions at some point during 2020 from 68 different volcanoes; 27 of those were new eruptions that started during the year. I have certainly heard from people that are very concerned and feel like theyre scared. Great Sitkin Volcano is a basaltic andesite volcano that occupies most of the northern half of Great Sitkin Island, a member of the Andreanof Islands group in the central Aleutian Islands. . The ongoing earthquake swarm at Takawangha volcano escalated and subsequently declined over the past day. On 7 August 2008, Kasatochi began erupting explosively with an ash plume reaching 45,000 feet. Turley said their first thought was that the bubbles were from something decomposing in the ponds or from tidal action, but theyd never seen them before and thought the bubbles remarkable enough to report them to Cameron, who is Tlingit and from Sitka. Now, 73,000 people live in the . St. Helens, which exploded in 1980, is considered the most powerful volcanic eruption in U.S. history and killed 57 people. Pavlov is a very sneaky volcano, Waythomas said. The reports were later confirmed by webcam. A series of eruptions about 14,000 years ago spread volcanic ash across Southeast Alaska that may have helped melt the glaciers that covered the region at the time. Clear web camera views showed minor steam and gas emissions at the north crater of Mount Young. 3 risk in the nation because of its threat to the people living nearby. In October, they found something new gas bubbling through several ponds on the east side of the island. Pavlov is a snow- and ice-covered stratovolcano on the southwestern end of the Alaska Peninsula, nearly 600 miles southwest of Anchorage. The 2001 eruption also produced a lava flow and hot avalanche that reached the sea. Since then, Cleveland has been intermittently active producing small lava flows, often followed by explosions that generate small ash clouds generally below 20,000 ft (6 km) above sea level. The Hunga Tonga-Hunga Ha'apai volcano erupts again at 5.10pm local time on Saturday 15 January. or redistributed. The latest of the trio of supervolcano eruptions created the park's huge crater, measuring 30 by 45 miles across (48 by 72 kilometers). Kasatochi Island (Aleut: Qanan-tanax; Russian: ), also known as Kasatochi volcano, is an active stratovolcano and part of the Andreanof Islands subgroup of the Aleutian Islands of southwestern Alaska. And it was a trifling eruption compared to Alaska's Novarupta, which in 1912 was so large that it actually destroyed . A veteran of AmeriCorps and Vista volunteer programs, she's previously reported for Mission Local and KQED in the Bay Area. I kept looking over towards the (military) base, she said. Alaska Public Media 2022. Satellite images and web camera views were mostly cloudy during the last 24 hours. Additional ash-producing events could occur again with little warning. Low-frequency sounds typically travel greater distances than audible sounds because they lose energy at a lower rate. The largest earthquake during the last 24 hours was M3.1. Fox News Flash top headlines are here. These explosions also launch debris onto the slopes of the cone producing hot pyroclastic avalanches and lahars that sometimes reach the coastline. A series of eruptions about 14,000 years ago spread volcanic ash across Southeast Alaska that may have helped melt the glaciers that covered the region at the time. The volcano has not had a major eruption for 4,500 years. Webcams on Thursday clearly showed episodic low-level ash emissions from Pavlof Volcano, prompting the observatory to raise the volcanos threat level from yellow, or exhibiting signs of unrest, to orange, indicating an eruption is underway with minor volcanic ash emissions. It definitely has moved up, said Cheryl Cameron, a state geologist who works at the volcano observatory. Small, shallow earthquakes (< 6 km depth) occurred at the rate of about 5 to 10 per hour over the past day at Aniakchak. The Alaska Volcano Observatory (AVO) is a joint program of the U.S. Geological Survey (USGS), the Geophysical Institute of the University of Alaska Fairbanks (UAFGI), and the State of Alaska Division of Geological and Geophysical Surveys (ADGGS). Minor steaming from the summit crater was observed over the past week but is considered to represent background activity for Cleveland. Alaska and Hawaii. No eruptive activity was observed over the past week and no explosions have been detected since December 7, 2022. The summit of roughly 65,000-year-old Stary Shiveluch is truncated by a broad 9-km-wide late-Pleistocene . All rights reserved. (Right) Suomi NPP OMPS Direct Readout sulfur dioxide (SO2) column density map (in . "This lava fountain is kind of unusual for Great Sitkin, but its been fairly passive at this point," said Chris Waythomas, a geologist with the Alaska Volcano Observatory. Mount Rainier, in Washington state, hasnt erupted in more than 500 years and shows no signs of doing so, but its the No. Small earthquakes occured at the rate of about 1 to 2 per hour in the vicinity of Trident Volcano during the past 24 hours. The nearest community is Cold Bay, about 35 miles southwest of Pavlov, which is considered one of Alaskas most active volcanoes in the Aleutian Islands arc of active and dormant volcanoes. Increases in seismic activity have been detected previously atTridentVolcano and other similar volcanoes, with no subsequent eruptions. We still think the magma is very deep. We accomplish this by delivering effective forecasts, warnings, and information about volcano hazards based on scientific understanding . You can unsubscribe anytime. It almost sounded like someone was walking outside or something, he said. AVO monitors Trident Volcano with a local network of seismometers, a webcam, remote sensing data, and regional infrasound and lightning networks. That report inspired the volcano observatory to plan a gas-sampling mission, which could take place as early as May. The last activity on the lava lake surface was observed on May 23 and on May 26, 2021, the USGS Hawaiian Volcano Observatory lowered the Volcano Alert Level for ground-based hazards from WATCH to ADVISORY and the Aviation Color Code from ORANGE to YELLOW. Weakly elevated surface temperatures and minor steaming from the active vent were observed in satellite data and web camera views several times during the week and may be related to the cooling of lava around the vent. No historical eruptions are known from Takawangha; however, field work shows that recent eruptions have occurred and it is possible that historic eruptions attributed to Tanaga may instead have come from Takawangha. has been bulging outward even more quickly than Edgecumbe, and for a longer period, without an eruption. Current activity map of Alaska and Kamchatka volcanoes. In December 2021, a volcano in the Kingdom of Tonga, known as Hunga Tonga-Hunga Ha'apai, began erupting in an event that culminated in an explosion so powerful it sent atmospheric ripples circling the planet multiple times. And we can combine this with earthquake locations to work out in three dimensions the shape of the magma body inside the Earth.". The Alaska Volcano Observatory is planning to install a series of seismic instruments on Mount Edgecumbe near Sitka after preliminary measurements showed magma moving deep below the Mount Fuji-shaped volcano. Mount Edgecumbe is now considered a high risk volcano, one step below the states very high risk volcanoes: Augustine, Spurr, Redoubt, Akutan and Makushin. When another batch of magma rises up beneath the volcano, then we might see the volcano becoming restless once again, or 're-activated.'". Contact Editor Andrew Kitchenman for questions: info@alaskabeacon.com. Other volcanoes have had similar amounts of deformation without erupting, Coombs said, noting that the ground around Laguna del Maule in Chile has been bulging outward even more quickly than Edgecumbe, and for a longer period, without an eruption. Sitka, with a population of about 8,400 people, is 14 miles away. Partially because of their experience, Kluting and Turley have been following events more closely than most. [Sign up for Alaska Public Medias daily newsletter to get our top stories delivered to your inbox.]. Hannah Dietterich, a research geophysicist with the Alaska Volcano Observatory, said three simultaneous eruptions may seem like a lot, but itsnot unheard of for the region. An underwater volcano in the South Pacific erupted violently on Saturday, causing tsunamis to hit Hawaii, Japan, and Tonga's largest island, Tongatapu -- sending waves flooding into the capital. It was deeper., [Correction: This story was updated to clarify that audible sounds from the eruption lasted about 30 minutes while lower-frequency sounds lasted around two hours.]. All rights reserved. The ongoing earthquake swarm at Takawangha volcano escalated and subsequently declined over the past day. Face masks optional at Kenai Peninsula schools this year, Delta variant arrives in Y-K Delta with high percentage of breakthrough cases, Alaska News Nightly: Wednesday, March 1, 2023, Anchorage Assembly member wants to ban the city from using of facial recognition technology, Kodiak Island Boroughs mayor becomes its city manager. AVO monitors seismic activity at potentially active volcanoes across Alaska and calculates locations and magnitudes for earthquakes (typically magnitude 3.0 and below) near the 32 active volcanoes where AVO operates seismic networks. Many posted on social media seeking answers. Tech & Science Alaska Volcano Eruption Science Activity has been detected under a dormant volcano near Sitka, Alaska. Our journalists fairly and fearlessly report on the people and interests that determine state policy. If the gas bubbling through the lakes is magmatic, she said, itll be another sign of activity at the volcano. Novarupta spewed 13 cubic kilometers (3.1 cubic miles) of magma, which turned into 30 cubic kilometers (7.2 cu mi) of ash that blanketed the nearby area. The recent volcanic eruption in Tonga was significant- the explosion was heard along coastal Alaska. The massive eruption, larger than the one on 14 January, generates an enormous amount of energy. 3 risk in the nation because of its threat to the people living nearby. Partially because of their experience, Kluting and Turley have been following events more closely than most. Forest Service). 3 Alaska volcanoes erupt, spitting lava and ash clouds, just days after a massive M8.2 earthquake Aug 6, 2021 1 Three remote Alaska volcanoes are in various states of eruption, one producing lava and the other two blowing steam and ash. With over 40 historic eruptions, it is one of the most consistently active volcanoes in the Aleutian arc. A series of eruptions about 14,000 years ago spread volcanic ash across Southeast Alaska that, Angst over youth outmigration emerges in Alaska campaign, While governor aims for a 'pro-life state,' abortion rights, From abortion to zoning: Short summaries of every bill in, Find your polling place and registration status. All times are local unless otherwise stated. Fee was also awake in the Philippines, La Cumbre in southwest of Pavlof the Aleutian range Great Sitkin Semisopochnoi. Heard along coastal Alaska volcano erupts again at 5.10pm local time on Saturday 15 January images and camera... 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