Articles tagged "alaska"

veniaminof june 29 2019 f

Veniaminof volcano alerts raised, Alaska

The Alaska Volcano Observatory (AVO) raised alerts for Veniaminof volcano after pilot reports of steaming coincided with low-level tremor recorded at the volcano at 20:30 UTC (12:30 AKDT). These observations mark a departure from recent background activity - the...

August 02, 2019

lava lake shishaldin july 23 2019 f

Active lava lake at Shishaldin volcano, Aviation Color Code Orange, Alaska

The Alaska Volcano Observatory (AVO) has raised the Aviation Color Code from Yellow to Orange and the Alert Level from Advisory to Watch at Shishaldin volcano on July 24, 2019. The last eruption of this volcano took place in 2015 (VEI 1). Field crews reported an...

July 24, 2019

mt cerberus semisopochnoi alaska 2017

Strong tremor signal at Semisopochnoi volcano, Aviation Color Code raised to Orange, Alaska

Elevated seismicity that began under Semisopochnoi volcano, Alaska on July 17, 2019, increased overnight and was followed by a stronger tremor signal recorded at 07:39 UTC, July 18. In addition, an infrasound signal was produced on an infrasound array located 260 km...

July 18, 2019

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Increased seismicity, alerts raised for Shishaldin volcano, Alaska

The Alaska Volcano Observatory is raising the Aviation Color Code to YELLOW and the Alert Level to ADVISORY at Shishaldin Volcano, the observatory said 21:09 UTC on July 12, 2019. The last eruption of this volcano took place in 2015 (VEI 1). This change is based on...

July 12, 2019

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Anchorage breaks all-time high temperature record, Alaska

Temperatures in Anchorage, Alaska rose up to 32 °C (90 °F) on July 4, 2019, breaking the previous all-time record temperature for the city of 29.4 °C (85 °F) set in 1969. The city also broke its daily July 4 record of 25 °C (77 °F) set in...

July 05, 2019

semisopochnoi island may 2017 f

Increased seismicity, alerts raised at Semisopochnoi volcano, Aleutians

Due to an increase in seismicity above background levels over at least the last 8 hours AVO is raising the Aviation Color Code to YELLOW and Alert Level to ADVISORY at Semisopochnoi. No explosive activity has been detected on the Adak infrasound array and clouds...

July 05, 2019

iliamna landslide june 21 2019 f

Large landslide on the flanks of Iliamna volcano, Alaska

A very large landslide took place on the flanks of Iliamna volcano, Alaska at about 00:05 UTC on June 21, 2019. The slide is about 6 km (3.7 miles) in length and appears to be originating near the summit. The debris field is approximately 3.2+ km (2+ miles) wide....

June 27, 2019

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Steam explosion at Great Sitkin volcano, alerts raised, Alaska

A small steam explosion at 05:40 UTC on June 2, 2019 (21:40 AKDT June 1) was detected at Great Sitkin volcano in local seismic data, the Alaska Volcano Observatory reports. No corresponding signal was seen in regional infrasound data or cloudy satellite...

June 02, 2019

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Shallow M6.1 earthquake hits Andreanof Islands, Alaska

A strong and shallow earthquake registered by the USGS as M6.1 hit off the coast of Amatignak Island, Alaska at 08:45 UTC on May 23, 2019. The agency is reporting a depth of 27.8 km (17.3 miles). EMSC is reporting M6.1 at a depth of 56 km (34.8 miles). The epicenter...

May 23, 2019

pavlof volcano january 19 2019

Vigorous steam plume at Pavlof volcano, alerts raised, Alaska

Low-frequency seismic tremor and vigorous steam plume have been observed at Pavlof volcano, Alaska over the past 2 days, forcing the Alaska Volcano Observatory (AVO) to raise the Aviation Color Code and Alert Level to Yellow/Advisory on May 15, 2019. The...

May 16, 2019

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Shallow M6.5 earthquake, strong aftershocks hit Rat Islands, Aleutian Islands, Alaska

A strong and shallow earthquake registered by the USGS as M6.5 hit Rat Island, Aleutian Islands, Alaska at 21:35 UTC on April 2, 2019. The agency is reporting a depth of 19.1 km (11.8 miles). EMSC is reporting M6.5 at a depth of 10 km (6.2 miles). The quake was...

April 03, 2019

cleveland volcano june 30 2018 f

New lava dome observed in the summit crater of Cleveland volcano, alerts raised

A new lava dome was observed in the summit crater of Cleveland volcano prompting the Alaska Volcano Observatory to upgrade the Color Code/Alert Level to ORANGE/WATCH on January 17, 2019. No explosive activity has been detected or observed in seismic or infrasound...

January 18, 2019

alaska earthquake december 31 2018 f2

Shallow M6.1 earthquake hits off the coast of Cold Bay, Alaska

A strong and shallow earthquake registered by the USGS as M6.1 hit off the coast of Cold Bay, Alaska at 02:35 UTC on December 31, 2018. The agency is reporting a depth of 26.9 km (18.4 miles). EMSC is reporting M6.1 at a depth of 40 km (24.8 miles). This earthquake...

December 31, 2018

cleveland volcano july 10 2018 f

Short-lived explosion at Cleveland volcano, ash to 5.2 km (17 000 feet), Alaska

A short-lived explosion was detected at Cleveland volcano early December 29, 2018. Ash cloud was reported rising up to 5.2 km (17 000 feet) above sea level. The Aviation Color Code remains Orange since December 12. Local seismic sensors recorded a short-lived...

December 29, 2018

veniaminof eruption november 21 2018 suomi npp

Significant increase in ash emissions at Veniaminof, Aviation Color Code Red, Alaska

Ash emissions at Veniaminof volcano increased significantly on November 21, 2018, forcing Alaska Volcano Observatory to raise the Aviation Color Code to Red and Volcano Alert Level to Warning. Veniaminof is generating a plume of ash up to 4.6 km (15 000 feet) above...

November 22, 2018

semisopochnoi island september 10 2018 esa sentinel 2 f

Eruptive events detected at Semisopochnoi, alerts raised to Orange/Watch, Alaska

Strong seismic tremor consistent with an eruption was recorded at Semisopochnoi volcano starting at 04:47 UTC (20:47 AKDT) on October 26, 2018. Satellite data through 05:00 UTC showed a small ash cloud at about 3.6 km (12 000 feet) above sea level, the Alaska...

October 28, 2018

veniaminof volcano 19 12 utc september 4 2018

Veniaminof volcano alert levels raised, the last eruption of this volcano took place in 2013, Alaska

The Alaska Volcano Observatory (AVO) has raised the Aviation Color Code to Orange and the Volcano Alert Level to Watch for Veniaminof volcano at 21:29 UTC on September 4, 2018. The last known eruption of this volcano took place in 2013. The decision to raise alerts...

September 05, 2018

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Shallow M6.0 earthquake hit Fox Islands, Aleutian Islands, Alaska

A strong and shallow earthquake registered by the USGS as M6.0 hit Fox Islands, Aleutian Islands, Alaska at 16:50 UTC (07:50 local time) on August 25, 2018. The agency is reporting a depth of 35.1 km (21.8 miles). EMSC is reporting M5.9 at a depth of 40 km (24.8...

August 25, 2018

andreanof islands alaska m6 3 august 23 2018 f

Strong M6.3 earthquake hits near Tanaga Volcano, Alaska

A strong earthquake registered by the USGS as M6.3 hit near Tanaga Volcano, Andreanof Islands, Alaska at 03:56 UTC on August 23, 2018 (18:35 local time, August 22). The agency is reporting a depth of 43.9 km (27.3 miles). EMSC is reporting M6.3 at a depth of 60 km...

August 23, 2018

andreanof islands earthquake august 15 2018

Strong and shallow M6.6 earthquake hits Andreanof Islands, Alaska

A strong and shallow earthquake registered by the USGS as M6.6 hit the Andreanof Islands, Aleutian Islands, Alaska at 21:57 UTC on August 15, 2018. The agency is reporting a depth of 31.6 km (19.6 miles). EMSC is reporting M6.6 at a depth of 40 km (24.8 miles)....

August 15, 2018

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Earthquakes continue after strongest-ever quake hits North Slope, Alaska

The USGS recorded more than 270 earthquakes in Alaska's North Slope on Sunday, August 12 and Monday, August 13, 2018, including M6.4, the most powerful earthquake ever to hit the region. The previous most powerful quake in the North Slope was M5.2 registered in...

August 13, 2018

m6 4 northern alaska earthquake august 12 2018

Strong and shallow M6.0 earthquake hits northern Alaska, 60th earthquake since 02:14 UTC

A strong and shallow earthquake registered by the USGS as M6.0 hit northern Alaska at 21:15 UTC (13:15 UTC) on August 12, 2018. The agency is reporting a depth of 0.1 km (0.06 miles). EMSC is reporting Mw6.0 at a depth of 10 km (6.2 miles). The epicenter was located...

August 12, 2018

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Strong and shallow M6.4 earthquake hits northern Alaska

A strong and very shallow earthquake registered by the USGS as M6.4 hit northern Alaska at 14:58 UTC (06:58 local time) on August 12, 2018. The agency is reporting a depth of 9.9 km (6.1 miles). This earthquake can have a low humanitarian impact based on the...

August 12, 2018

alaska earthquake july 19 2018

Shallow M6.0 earthquake hits near Chernabura Island, Alaska

A strong and shallow earthquake registered by the USGS as M6.0 hit near Chernabura Island, Alaska at 14:16 UTC on July 17, 2017. The agency is reporting a depth of 17.1 km (10.6 miles). EMSC is reporting Mw5.9 at a depth of 10 km (6.2 miles). This earthquake is...

July 19, 2018

june snow alaska 2018

June snow in Alaska, Fairbanks temperature drops to coldest so late in the season since 1960

Parts of Alaska experienced yet another round of June snow this week. The temperature in Fairbanks, the largest city in the Interior region of Alaska, dropped to 2.2 °C (36 °F) on June 12, its coldest temperature so late in the season since 1960. Winter...

June 14, 2018

cleveland volcano alaska

Moderate eruption detected at Cleveland volcano, Alaska

A moderate, 2-minute-long eruption occurred at Cleveland volcano, Alaska beginning at 01:47 UTC on September 26, 2017. The explosion was detected by seismic and infrasound (air pressure) sensors, the Alaska Volcano Observatory said 02:15 UTC today, adding that...

September 26, 2017

bogoslof may 2017

Powerful eruption at Bogoslof: ash to 10.4 km (34 000 ft), Aviation Color Code Red

A powerful explosive eruption started at Bogoslof volcano, Alaska at 06:32 UTC on May 17, 2017, and lasted approximately 73 minutes. The Aviation Color Code was raised from Orange to Red. This is the first major eruption at Bogoslof volcano since March 8, 2017. A...

May 17, 2017

bogoslov volcano as seen on january 31 2017

Significant explosive eruption at Bogoslof volcano, Alaska

A significant explosive eruption began at Bogoslof volcano at about 16:24 UTC on February 13, 2017. The eruption is indicated in seismic data, the Alaska Volcano Observatory said. Although at this time there has been no lightning detected, nor satellite images...

February 13, 2017

bogoslof eruption terra modis january 18 2017

Bogoslof ejects ash more than 9.5 km (31 000 feet) a.s.l., Alaska

Alaskan Bogoslof volcano erupted again at about 22:20 UTC on January 18, 2017, following an approximately 20-minute-long increase in seismic activity. The cloud it ejected is presumably more ash-rich than others in current eruptive sequence. Alaska Volcano...

January 19, 2017

alaska_feat

Chilly November temperatures observed in Alaska

A spell of extremely cold and frosty weather swept Fairbanks, Alaska on November 16, 2015. The lowest recorded temperature reached -32.8 °C (- 27 °F), while on average - 20 °C (- 4 °F) prevailed across the state. Alaska: statewide average temp of...

November 18, 2015

Alaska_eq

M 6.0 struck southeastern Alaska

Strong M 6.0 earthquake was registered (USGS/EMSC/NTWC) at 11:49 UTC on July 17, 2014 in border region of Alaska and Southern Yukon Territory, Canada. The epicenter was located 95 km (59 miles) NNW of Yakutat, Alaska and 300 km (186 miles) W of Whitehorse

July 17, 2014

noatak_earthquake_swarm_april_may_2014

Earthquake swarm in northern Alaska, northeast of Noatak

A swarm of moderate to strong earthquakes is being registered in northern Alaska, about 28 km northeast of the village of Noatak. First earthquake was registered on April 18, 2014 as M5.6 at depth of 23.4 km. Since then, and by 13:22 UTC today, USGS registered

May 06, 2014

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Strong M 6.0 earthquake near Andreanof Islands, Alaska

Earthquake registered as M 6.0 (USGS) occurred near Andreanof Islands, Alaska at 16:21 UTC on September 15, 2013. The epicenter was at the sea, located 83 km SSW of Atka, Aleutian Arc, Alaska at coordinates 51.540°N 174.794°W. The depth was

September 15, 2013

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Increased seismicity, lava fountaining and ash emissions up to 6 km at Veniaminof volcano, Alaska

Increased seismicity, characterized by elevated levels of continuous tremor, lava fountaining, and ash emissions as high as 4.5 - 6 km (15,000 to 20,000 feet) above sea level have been occurring at Veniaminof volcano, Alaska, on the morning of August 30th. Latest AVO

August 31, 2013

Andreanof_Islands_eq_swarm_aug_31_2013

Strong earthquakes hit Andreanof Islands region, Alaska

Earthquake sequence that started with M 7.0 on August 30 at 16:25 UTC generated 44 M1+ earthquakes until 07:00 UTC on August 31, according to USGS. In that timeframe, USGS reported 30 M2.5+ earthquakes and 13 M4.5+, with strongest being M6.1 at 06:38 UTC and M5.5 at...

August 31, 2013

M6 8_aug_30_2013_alaska

Very strong earthquake M7.0 struck south of Atka, Alaska

A very strong earthquake with recorded magnitude of 7.0 (USGS) struck south of Atka, Alaska on August 30, 2013 at 16:25 UTC. Preliminary reports placed depth at 34.5 km (21.4 miles). EMSC is also reporting M7.0 earthquake and depth of 40 km. Epicenter was

August 30, 2013

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Earthquake swarm under Mount Churchill volcano, Alaska

A significant earthquake swarm has started in the vicinity of Mount Churchill volcano, Alaska, US, on July 14, 2013. USGS measured 27 earthquakes in last 48 hours with magnitudes between 2.5 and 4.4. Depth varies from 0.1 km to 15 km. The

July 16, 2013

Veniaminof

Effusive activity and explosions raised the alert at Veniaminof volcano, Alaska

Alaska Volcano Observatory (AVO) reported on June 13, 2013 that an eruption at the intracaldera cone is likely underway at Veniaminof volcano, Alaska as determined from satellite observation of elevated surface temperatures at 13:25 UTC. This prompted AVO to raise the

June 14, 2013

Vemiaminof_2006

Another Aleutian volcano erupts - Increasing seismic tremor and steam plume at Veniaminof volcano

AVO reported on June 8, 2013 that over the past two days, they have detected gradually increasing seismic tremor beneath Veniaminof volcano, Alaska. Similar seismic activity has been associated with ash emissions at Veniaminof in the past, most recently in

June 10, 2013

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New activity with ash emissions and lava fountaining at Pavlof volcano, Alaska

Current eruptive episode at Pavlof volcano, Alaska began on May 13, 2013 with ash emissions continuing through May 28, 2013 at which time the volcano remain calm. Activity renewed on June 4, 2013. Such pauses are common during eruptive episodes of Pavlof, which

June 09, 2013