Powerful Earthquake Strikes N of Anchorage, Alaska

DBB – 113002

M7.0 Earthquake Causes Major Infrastructure Damage in Anchorage –Police

Tsunami Warning Cancelled.

Alaska Governor Issues a Disaster Declaration

Earthquake Details [USGS]

Magnitude: 7.0 mww – 13km N of Anchorage, Alaska
Location: 61.340°N 149.937°W
Depth: 40.9 km
Time: 2018-11-30 17:29:28 (UTC)

Largest aftershock as of posting: 5.7 ml [13 aftershocks reported as of Fri 10:35 am AKST]

Felt Reports: 702 [as of Fri 10:35 am AKST]

Earthquakes reported in Alaska so far this year: 43,889

Notable Earthquakes since 1964

PAGER: ORANGE
Shake Map: Orange
[Significant damage is likely and the disaster is potentially widespread. Estimated economic losses are less than 1% of GDP of the United States. Past events with this alert level have required a regional or national level response.]

Estimated Economic Losses

[Significant damage is likely and the disaster is potentially widespread. Estimated economic losses are less than 1% of GDP of the United States. Past events with this alert level have required a regional or national level response.]

Click to access alertecon.pdf

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FIRE-EARTH EARTHQUAKE FORECASTS

Detailed FIRE-EARTH Forecast for the regions including nearby seismicity available via FIRE-EARTH PULSARS.

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• All Groups

Latest FIRE-EARTH DIRECTIVES, ALERTS, FORECASTS, BULLETINS and MESSAGES available via FIRE-EARTH PULSARS.

 

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Powerful Earthquake Strikes Iniskin Bay, Alaska

M7.1 earthquake strikes SW of Anchorage, Alaska

Centered at 59.658°N, 153.452°W the event occurred at a depth of 127.8 km (79.4 mi), reported USGS/EHP.

EQ Details
Magnitude: 7.1Mw
Location: 59.658°N 153.452°W
Depth: 127.8 km
Time: 2016-01-24 10:30:30 UTC
Nearby Cities:

• 83km (52mi) E of Old Iliamna, Alaska
• 261km (162mi) SW of Anchorage, Alaska
• 295km (183mi) SW of Knik-Fairview, Alaska
• 648km (403mi) SSW of College, Alaska

Tsunami Evaluation: This earthquake did not generate a destructive tsunami.

Aftershocks: At least 8 aftershocks have occurred in and around the Iniskin Peninsula, as of posting.

Tremors were felt in Anchorage, about 260km NE of the epicenter.

Regional Impact: http://earthquake.usgs.gov/earthquakes/eventpage/us10004gqp#impact_dyfi

 

Significant Earthquakes – July 29, 2015

M6.3 quake strikes SSW of Redoubt Volcano, Alaska

Magnitude: 6.3Mw [USGS/EHP]
Location: 59.906°N, 153.150°W
Depth: 116.6 km
Time: 2015-07-29 at 02:35:59 UTC,
Distances:

• 68km (42mi) SSW of Redoubt Volcano
• 230km (143mi) SW of Anchorage, Alaska

M4.7 quake strikes 73km SSW of Nikolski, Alaska
Location: 52.361°N 169.387°W; depth=35.2km
Time:2015-07-29 07:41:07UTC

M4.9 quake strikes 10km W of Merizo Village, Guam
Location: 13.262°N 144.576°E; depth=89.7km
Time: 2015-07-29 03:51:07UTC

M5.9 quake strikes 29km S of Acandi, Colombia
Location: 8.237°N, 77.298°W; depth=10.0 km
Time: 2015-07-29 00:10:24 UTC

 

M5.8 Quake Strikes near Hayes Volcano, Alaska

Earthquake strikes near Mt Gerdine, Alaska

[Editor’s Note: Hayes Volcano is an ice-covered volcano located northeast of Mount Gerdine. The volcano was discovered in 1975.

Centered at 61.662°N 151.976°W, about the quake occurred at a depth of 121km (75mi) WNW of Anchorage, at a depth of 15.3 km (71.6 mi), USGS/EHP reported.

EQ Details

Magnitude: 5.8Mw
Date/ Time: 2015-06-24 at 22:32:20 (UTC)
Nearby Cities:

• 103km (64mi) W of Willow, Alaska
• 121km (75mi) WNW of Anchorage, Alaska
• 127km (79mi) W of Knik-Fairview, Alaska

Related Links

• FIRE-EARTH EARTHQUAKE FORECAST – Alaska May 29, 2015

M6.2 Quake Strikes Alaska

SEISMIC HAZARD
HEIGHTENED GLOBAL SEISMICITY
SCENARIOS 010, 09, 08, 07, 02
.

Strong Quake Rattles Anchorage

Centered at 61.953°N, 151.785°W the event occurred at a depth of 102.8km (63.9mi), about 94kmWNW of Willow, Alaska, said USGS/EHP.

Earthquake Details

Event Time: 2014-09-25 17:51:17 UTC
Location: 61.953°N 151.785°W depth=102.8km (63.9mi)
Nearby Cities

• 94km (58mi) WNW of Willow, Alaska
• 125km (78mi) WNW of Knik-Fairview, Alaska
• 129km (80mi) NW of Anchorage, Alaska

Other Significant Seismicity

M 6.0 – 160km SSW of Gizo, Solomon Islands
Location: 9.480°S 156.391°E depth=10.0km (6.2mi)
Event Time: 2014-09-25 09:13:50 UTC

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Alaska Earthquake Forecast: Update 2

A great earthquake may strike Alaska in 2009

FEWW Alaska Earthquake Forecast – Update # 2

FEWW Moderators believe a magnitude 9.2Mw earthquake could strike Alaska anytime.

Details of FEWW Alaska Earthquake Forecast were initially posted at Magnitude MW 5.7 Quake Hits Southern Alaska on January 26, 2009, and were subsequently revised in FEWW: Alaska Earthquake Warning on August 6, 2009.

FEWW has now revised the Alaska Earthquake Forecast as follows:

• Magnitude: 9.2
• Probability of occurrence: 0.8
• Estimated date of occurrence: November 19, 2009
  
• Date uncertainty: +/- 90 days.
• Estimated Location: 60.414N, 149.496W
• Location uncertainty: Radius of about 50km from the estimated epicenter
  
• Estimated depth: 8km [+/-2.6km]

FEWW Alaska Earthquake Forecast. Approximate location. Source of original map: Google Earth. Map may be subject to copyright.

Related Links:

• FEWW: Alaska Earthquake Warning
• Magnitude MW 5.7 Quake Hits Southern Alaska
• Earthquakes [Links Page]

Redoubt Volcano: Recent Images

Redoubt Activity – Color Code RED : Alert Level WARNING

Local time: March 24, 2009 6:45 AKDT (March 24, 2009 14:45 UTC)

Eruption cloud from an explosion at Redoubt Volcano

AVHRR (Advanced Very High Resolution Radiometer) false-color satellite image showing the eruption cloud from an explosion at Redoubt Volcano at 3:31am AKDT on March 23rd 2009. Image was captured at 5:30am and shows the ash cloud passing over other volcanoes and heading NE towards Anchorage. Picture Date: March 23, 2009 14:30:29 UTC . Image Creator:  John Bailey. Image courtesy of the AVO/UAF-GI.

Fine ash deposited on a windshield of the car during the 3/23/2009 ash fall in Healy, AK. Picture Date: March 23, 2009 15:38:00 AKDT. Image Creator: Pavel Izbekov. Image courtesy of the AVO/UAF-GI.

SEM image of ash particle from the 3/23/2009 ash fall in Healy, AK. Picture Date: March 24, 2009.  Image Creator: Pavel Izbekov; Jill Shipman. Image courtesy of the AVO/UAF-GI.

• Another SEM image of ash particle
  

Tephra deposits from the eruption of Redoubt Volcano

Photos of the flooding in Drift Valley and tephra deposits from the eruption of Redoubt Volcano. [more detailed caption to follow.] Picture Date: March 23, 2009. Image Creator: Game McGimsey. Image courtesy of AVO/USGS.

Massive flooding in Drift Valley from the eruption of Redoubt Volcano

Massive flooding in Drift Valley from the eruption of Redoubt Volcano. Picture Date: March 23, 2009. Image Creator: Game McGimsey. Image courtesy of AVO/USGS.

Ash Plumes from Redoubt Volcano

Earth Observatory Images of Ash plumes ejected by Redoubt Volcano. Above image was acquired March 23, 2009 at 12:30am AKDT [Add 8 hrs for UTC.] The above Terra MODIS image was captured at 12:30 a.m.  March 23, just 16 minutes after the third large eruption. Two plumes of ash are visible: a long white plume reaching north, and a smaller one just northeast the volcano. Communities along the trajectory of the ash plume included Skwenta and Talkeenta. NASA images created by Jesse Allen, using data provided courtesy of the MODIS Rapid Response team.

The Aqua MODIS image  was captured four hours later, at 4:30 a.m. AKDT, just as the fifth large eruption began. At that time, the new ash plume was located directly over Mt. Redoubt. NASA images created by Jesse Allen, using data provided courtesy of the MODIS Rapid Response team. Instrument: Aqua – MODIS

Ash on the snow to the NNE of Redoubt

MODIS image from Terra, 23 March 2009, 2149Z. Courtesy of GINA. Ash on the snow to the NNE of Redoubt. Picture Date: March 23, 2009 21:49:00 UTC. Image Creator:  Jonathan Dehn. Image courtesy of the Geographic Information Network of Alaska.

Eruption events 1, 2, 3, 4, and 6 from Redoubt Volcano on 22 and 23 March 2009

Montage of various satellite images, from different times, showing eruption events 1, 2, 3, 4, and 6 from Redoubt Volcano on 22 and 23 March 2009. There were multiple eruption events, this number of seven is one preliminary interpretation and may be subject to change upon further review. Picture Date: March 23, 2009. Image Creator: Ken Dean. Image courtesy of the AVO/UAF-GI.

Redoubt Volcano Latest Observations from AVO: 2009-03-24 00:35 UTC

The eruption of Redoubt volcano continues and the color code and volcano alert level remains at RED/WARNING. Seismic activity remains elevated, but has declined slightly over the past several hours. The activity consists mostly of volcanic tremor with some discrete events.

• AVO has received no new reports of ash emission since early this morning. The ashfall advisory has expired.

• AVO’s web camera near the volcano is now functioning and meltwater flooding along the margins of Drift glacier is evident.

• AVO has an overflight of the volcano in progress.

Related Links:

• Redoubt Erupts
• More Redoubt images

this post: 9 images +1  image link; 567 words; two links

Magnitude MW 5.7 Quake Hits Southern Alaska

Magnitude MW 5.7 Earthquake Strikes West of Nanwalek, Alaska

This Earthquake

Magnitude MW 5.7
Date-Time

• Saturday, January 24, 2009 at 18:09:50 UTC
• Saturday, January 24, 2009 at 09:09:50 AM at epicenter

Location:  59.389°N, 152.811°W
Depth:  100 km (62.1 miles) set by location program
Region:  SOUTHERN ALASKA
Distances

• 51 km (32 miles) W (275°) from Nanwalek, AK
• 56 km (34 miles) W (275°) from Port Graham, AK
• 62 km (39 miles) W (265°) from Seldovia, AK
• 262 km (162 miles) SW (221°) from Anchorage, AK

Location Uncertainty Error:  estimate not available

Source: Alaska Earthquake Information Center
Geophysical Institute, University of Alaska Fairbanks

Event ID: ak00088513

Seismic Hazard Map

Source of all images on this page: USGS

FEWW Forecast: An area within approximately 300-km radius of Anchorage would be one of the seismic zones in Alaska to experience continued intense seismic activity this year possibly including a magnitude MW 7.9 or larger quake close to Anchorage  (south of the city, north of Rugged Island).

Related Links:

• Earthquakes [Links Page]
  

3 million acres of spruce killed in Alaska in 15 years

“Beetles take no prisoners, It’s a Mafia-style execution!”

~ Ed Berg, ecologist for the U.S. Fish and Wildlife Service

Alaska has experienced an average warming of 3 degrees Celsius (5.4 °F) and about 4.5 °C (8°F) in the inner regions in winter months since the 1960s, the largest regional warming of anywhere in the U.S., according to records.

The warmer temperature means Alaska’s peat bogs, which are nearly 14,000 years old, are drying up. Ed Berg, an ecologist for the U.S. Fish and Wildlife Service, has discovered that shrubs and other plants have been rooting in areas of peat big normally too soggy for woody plants to grow during the last three decades.

Black Spruce taiga, Copper River, Alaska. (Credit: NOAA)

“We’ve got mounds of evidence that an extremely powerful and unprecedented climate-driven change is underway,” said a forest ecologist at the University of Alaska in Fairbanks. “It’s not that this might happen, these changes are underway and there are more changes coming.”

In Alaska, 35 percent forest, global warming is causing irreversible changes including droughts, forest fires, and infestations of tree-killing insects like spruce beetles and spruce budworm moths. In the last 15 years, the spruce beetles, which thrive in warmer climates, have destroyed a total of about 3 million acres (1.21 million hectares) of spruce forest in south-central Alaska.

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Adult female spruce bark beetle

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Western Spruce Budworm caterpillar, sixth (final) instar (stage of development). Spruce budworms and relatives are serious pests of conifers. (Credit: David G. Fellini and Jerald E. Dewey, Forest Service of the United States Department of Agriculture.

The Alaskan landscape is covered with dead spruce trees after a major outbreak of spruce bark bettles in the arctic region in this file image. REUTERS/handout

The Spruce Beetle in Alaska Forests. (Credit:The University of Alaska Fairbanks Cooperative Extension Service)

As the areas of beetle-infested forest grow, more land is clear-cut and land speculation frenzy grows.

Wetlands are a natural defense mechanism retarding forest fires. The warmer weather and drier forest therefore could lead to more forest fires.

Drying or burning peat bogs, which comprise 50-60 percent carbon, would release additional carbon dioxide, the principal greenhouse gas, to the atmosphere.

Related Links:

• The Spruce Beetle in Alaska Forests
• Terrible Ocean Headlines
• World CO2 Emissions
• Hilarious Polar Bear News!

• How Much CO2 Does Your Money Produce?

Related News Links:

• Warming climate threatens Alaska’s vast forests

Week 32 Volcano Watch

6 August-12 August 2008

New Activity/Unrest:

• Asama, Honshu, Japan
• Bezymianny, Central Kamchatka (Russia)
• Kasatochi, Andreanof Islands
• Kliuchevskoi, Central Kamchatka (Russia)
• Mayon, Luzon , Philippines

Plume from Kasatochi Volcano, Aleutian Islands
Satellite: Aqua
Date Acquired: Aug 9, 2008

Credit: Jeff Schmaltz
MODIS Land Rapid Response Team,
NASA GSFC

Kasatochi Volcano is one of many mostly submarine volcanoes whose summit emerges from the waters of the Bering Sea off the southwest coast of Alaska. After earthquakes and other seismic activities starting on or around August 7, Kasatochi began erupting large plumes of ash and gases. On August 8, 2008, skies were cloudy when the MODIS on NASA’s Terra satellite passed overhead and captured this natural-color image. The bright clouds provided good contrast for the volcanic plume, which is dark brown.

The ash plume spread southeastward from the volcano over the Pacific Ocean. Weather patterns caused the plume to diffuse as it swirled counterclockwise. Beneath the plume, which is dark brown, a few breaks in the clouds reveal that the normally deep blue waters of the Pacific are turquoise-colored. This brightness may be the result of ash or rocks debris settling on the water’s surface. According to an article in an Anchorage newspaper, the ash cloud forced cancellation of scores of flights into and out of Alaska, stranding as many as 6,000 passengers. (Caption NASA)

Ongoing Activity:

• Anatahan, Mariana Islands (Central Pacific)
• Batu Tara, Komba Island (Indonesia)
• Chaitén, Southern Chile
• Chikurachki, Paramushir Island
• Cleveland, Chuginadak Island |
• Karymsky, Eastern Kamchatka
• Kilauea, Hawaii (USA)
• Krakatau, Indonesia
• Okmok, Fox Islands
• Piton de la Fournaise, Reunion Island
• Rabaul, New Britain
• Reventador, Ecuador
• Sakura-jima, Kyushu
• Semeru, Eastern Java (Indonesia)
• Shiveluch, Central Kamchatka (Russia)
• Soufrière Hills, Montserrat
• Suwanose-jima, Ryukyu Islands (Japan)
• Tungurahua, Ecuador

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. This page is updated on Wednesdays, please see the GVP Home Page for news of the latest significant activity.

The right to disturb wildlife!!

BP and Shell Rights Come First!

[WTF]

A week after U.S. District Court Judge Ralph Beistline declared that “the balance of hardships” is in favor of the BP and Shell, “who have invested significant time [never mind nature’s 4.55 billion year investment] and expense in preparing for the scheduled activities,” and dismissed lawsuit against exploration permits granted by the National Marine Fisheries Service and the MMS, two environmental groups filed a lawsuit yesterday against new federal regulations that grants permission to oil companies to disturb the polar bears and walrus in the Chukchi Sea.

The Pacific Walrus: “ah may be ugly, but ah ain’t dumb, an’ ah ain’t hurting no one!” [Image: NOAA]

“The lawsuit, filed in U.S. District Court in Anchorage, challenges regulations issued last month by the U.S. Fish and Wildlife Service that allow ‘incidental takes’ of the animals, meaning permission to disturb or accidentally harass them as long as such actions do not result in physical injury or death.” Reuters reported.

Polar bears were listed as threatened under the Endangered Species Act in May, and a similar petition seeking protections to the Pacific walrus has since been submitted. More …

An aerial view of the oil spill from Statfjord A platform in the Norwegian sector of the North Sea December 12, 2007. About 25,000 barrels of oil spilled into the Norwegian sector of the North Sea near the Statfjord oilfield on Wednesday, field operator StatoilHydro and oil officials said. REUTERS/Kystverket (The Norwegian Coastal Administration) via Scanpix Norway (NORWAY) NORWAY OUT NO COMMERCIAL USE

[MMS: the U.S. Minerals Management Service]

Related Links:

• Death by Lethal Pollution
• Bering Sea Drilling Revisited!