Strong Earthquakes Strike Alaska, Iran

FMR – BAW – 082602

M 6.0 earthquakes strike Amukta Island, Alaska and Javanrud, Iran

EQ Details:

Magnitude: 6.0 mww
Location: 52.288°N, 171.186°W; 35.1 km depth
Distances: 22km SSE of Amukta Island, Alaska
Time: 2018-08-25 16:50:04 UTC

Magnitude: 6.0 mww
Location: 34.663°N, 46.277°E; 10.0 km depth
Distances: 26km SW of Javanrud, Iran [Population: ~ 40,000]
Time: 2018-08-25 22:13:26 UTC

Fatalities expected. [USGS]

Powerful Earthquakes near Komandorskiye Ostrova Unleashes Aftershocks as Far as Near Islands

RB-337T
COPY: FSCT

M7.7 earthquake occurs  199km ESE of Nikol’skoye, Russia

The event was followed by a dozen aftershocks, stretching over 600km between Komandorskiye Ostrova and the Near Islands, along the Aleutian Trench.

Tsunami Evaluation

The earthquake generated a local tsunami, which did not pose a threat to populated areas in the region.

EQ Details [USGS]

7.7mww
54.466°N 168.822°E
11.7 km depth
199km ESE of Nikol’skoye, Russia
23:34:14 UTC 2017-07-17

FIRE-EARTH Ref: DBV3

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• All Groups: Diagnostics now available via FIRE-EARTH PULSARS.

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Powerful Quake Strikes NW of Near Islands, Alaska

G-209D

[EQ details are subject to multiple updates, due to USGS personnels’ inexperience and other internal factors. Editor]

M 6.8 – 203km NW of Attu Station, Alaska [USGS]

Initially, the quake was reported incorrectly as a 6.9-magnitude event, striking at a depth of 30.6km.

Magnitude: 6.8 mww
54.082°N, 170.930°E [203km NW of Attu Station, Alaska]
Depth: 10.0 km
Time: 2017-06-02 22:24:48 UTC
FIRE-EARTH References:  DRN1,  000104 – 052701

Aftershocks [as of posting]
M5.2
53.841°N 170.987°E [183km NW of Attu Station, Alaska]
10.0 km
2017-06-02 22:32:37 (UTC)

M4.1
180km NW of Attu Station, Alaska
10.0 km
2017-06-03 01:28:32 (UTC)

Papua New Guinea
M 5.9
Location: 4.726°S, 145.128°E [92km NW of Madang, Papua New Guinea]
Depth: 190.9 km
Time: 2017-06-02 23:48:17 (UTC)

Japan Region
M 5.1
Location: 24.327°N, 126.213°E [107km ESE of Hirara, Japan]
Depth: 31.4 km
Time: 2017-06-02 17:26:31 (UTC)

Significant Quakes Occur off Aleutian Islands, Alaska

Significant earthquakes strike near Kiska Volcano

Details of the Latest EQ

Magnitude: 5.6Mw  – 73km WSW of Kiska Volcano, Alaska
Location: 51.843°N, 176.623°E [73km WSW of Kiska Volcano, Alaska]
Depth: 21.5km
Time: 2016-04-11 20:10:35 UTC

Earlier EQ

Magnitude: 5.4Mw
Location: 51.032°N, 179.621°E [92km WSW of Amatignak Island, Alaska]
Depth: 47.4km
Time: 2016-04-10 19:34:05 UTC

Volcano Eruption Alert: Pavlov Volcano Eruption Continues

Seismic tremor at Pavlov remains at very high levels: AVO

The eruption of Pavlov Volcano continues. It began around 4 pm AKDT on Sunday (00:00UTC). Maximum ash cloud altitude of 37,000 ft (~ 11,300m) above sea level indicated.

AVO/USGS Volcanic Activity Notice

• Volcano: Pavlof (VNUM #312030)
  • Location: N 55 deg 25 min W 161 deg 53 min
  • Elevation: 8,261 ft (2,518 m)
  • Area: Alaska Peninsula Alaska
• Current Volcano Alert Level: WARNING
• Current Aviation Color Code: RED
• Issued: Monday, March 28, 2016, 8:34 AM AKDT (2016-03-28/16:34UTC)
  Source: Alaska Volcano Observatory – Notice Number: 2016/A3

Volcanic Activity Summary:

• The eruption of Pavlov Volcano continues.
• It began around 4 pm AKDT on Sunday (00:00UTC).
• Seismic tremor remains at very high levels.
• Lighting associated with the ash eruption has been detected.
• Infrasound (pressure sensor) data from a sensor network located in Dillingham (400 miles or 650 km) also indicate sustained ash emissions.

Pavlof volcano in eruption, March 27, 2016. Photo courtesy of Colt Snapp, taken at 7:00 PM AKDT from a flight enroute to Anchorage, from Dutch Harbor. URL: http://www.avo.alaska.edu/images/image.php?id=93201

As of 7:00 AKDT (15:00 UTC) a continuous plume of ash is observed in satellite images extending for a distance of more than 400 miles (650 km) to the northeast over interior Alaska. SIGMET warning messages issued by the National Weather Service (NWS) Alaska Aviation Weather Unit indicate maximum ash cloud altitude of 37,000 ft above sea level. Please see the NWS web page for additional guidance and forecasts of ash movement. http://aawu.arh.noaa.gov/sigmets.php

Lava fountaining from the summit crater was observed throughout the night by mariners, pilots, and by residents in Cold Bay, located 37 miles (60 km) to the SW, . Volcanic mudflows are likely on the flanks of the volcano and could present a hazard in the local river valleys.

Recent Observations:  [Volcanic cloud height] 37,000 ft ASL in SIGMET
[Other volcanic cloud information] Extending for 400 miles to the NE as of 07:00 UTC.

Hazard Analysis:  [Mud flow] Mud flows on the flanks of the volcano are likely.

Satellite image showing strong ash signal (blue) extending more than 500 km (300 mi), north-northeast from Pavlof volcano, 4:19 am AKDT (12:19 UTC), March 28, 2016. Photographer/Creator:  Michelle  Coombs  URL:    http://www.avo.alaska.edu/images/image.php?id=93191

Remarks: Pavlof Volcano is a snow- and ice-covered stratovolcano located on the southwestern end of the Alaska Peninsula about 953 km (592 mi) southwest of Anchorage. The volcano is about 7 km (4.4 mi) in diameter and has active vents on the north and east sides close to the summit. With over 40 historic eruptions, it is one of the most consistently active volcanoes in the Aleutian arc. Eruptive activity is generally characterized by sporadic Strombolian lava fountaining continuing for a several-month period. Ash plumes as high as 49,000 ft ASL have been generated by past eruptions of Pavlof, and during the 2013 eruption, ash plumes as high as 27,000 feet above sea level extending as much as 500 km (310 mi) beyond the volcano were generated. The nearest community, Cold Bay, is located 60 km (37 miles) to the southwest of Pavlof.

Mt. Cleveland: Color Code YELLOW  Alert Level ADVISORY

Index map showing location of Pavlof volcano and other Alaska Peninsula volcanoes.  Credit: Janet Schaefer/AVO

Location of Cleveland volcano and other Aleutian volcanoes with respect to nearby cities and towns.  Credit: Janet Schaefer/AVO

Latest Seismic Activity along Aleutian Trench:
5.5 76km S of Nikolski, Alaska 2016-03-28 17:14:55 UTC 10.0 km
4.6 63km SSE of Nikolski, Alaska 2016-03-28 11:45:06 UTC 38.3 km
2.8 95km SSE of Nikolski, Alaska 2016-03-28 05:34:38 UTC 24.3 km
3.3 85km SSE of Nikolski, Alaska 2016-03-27 20:40:42 UTC 25.5 km
4.1 71km S of Nikolski, Alaska 2016-03-27 19:44:35 UTC 29.7 km
4.7 70km S of Nikolski, Alaska 2016-03-27 18:27:27 UTC 35.0 km
3.4 96km SSE of Nikolski, Alaska 2016-03-27 18:21:43 UTC 25.7 km
4.5 80km S of Nikolski, Alaska 2016-03-27 18:14:00 UTC 26.8 km
5.7 84km S of Nikolski, Alaska 2016-03-27 18:01:30 UTC 16.0 km

 

Significant Earthquakes September 10 – 11

M5.9 quake strike Aleutian Trench, SE of Yunaska Island, Alaska

Centered at 52.163°N, 169.581°W the event occurred at a depth of 37.8km, reported USGS/EHP.

The quake was followed by at least two aftershocks, as of posting:

• M4.9, about 87km SSW of Nikolski, Alaska 2015-09-10 at 16:59:39 UTC depth= 31.2km
• M4.5, about 95km SE of Yunaska Island, Alaska 2015-09-10 at 12:02:31 UTC depth= 25.0km

Other Significant Events:

• 4.6 15km SSW of Plomarion, Greece 2015-09-10 08:12:46 UTC 13.6 km
• 5.1 65km NNW of Gueiria, Venezuela 2015-09-10 07:49:36 UTC 112.1 km
• 5.4 26km W of `Alaqahdari-ye Kiran wa Munjan, Afghanistan 2015-09-09 21:03:24 UTC 107.1 km
• 5.0 17km S of Sinabang, Indonesia 2015-09-09 12:41:46 UTC 26.4 km

Alaska Hit by Powerful Earthquake

M6.9 earthquake strikes Fox Islands, Alaska

Centered at 52.443°N, 169.597°W the quake struck at a depth of about 27.1 km, reported USGS/EHP.

The event was followed by at least a dozen significant aftershocks, as of posting.

Tsunami Evaluation
NO tsunami danger from this earthquake.

EQ Details

• Magnitude: 6.9Mw
• Location: 52.443°N 169.597°W depth=27.1 km (16.8 mi)
• Time: 2015-07-27 04:49:46 (UTC)
• Distances:
  • 73km (45mi) SW of Nikolski, Alaska
  • 1,538km (956mi) WSW of Anchorage, Alaska

 

Strong Earthquake Strikes Near Islands, Alaska

Update: Parameters of the following quake have been revised by USGS/EHP

M5.7 quakes strikes WSW of Attu Station, Alaska

Centered at 52.7°N, 172.5°E the quake occurred at a depth of 7.0km, about 46km WNW of Attu Station, Alaska, USGS/EHP reported.

EQ Parameters [Revised]

Magnitude: 5.0Mw
Location: 52.964°N, 172.333°E
Depth: 17.6 km
Time: 2015-07-04 09:56:39 UTC

A destructive tsunami was NOT generated by this event.

[CBF]
[MCA]

Unique Slant on Today’s Earthquakes

SEISMIC HAZARD
HEIGHTENED GLOBAL SEISMICITY
SCENARIOS 08, 07
.

The odds that follow events!

Despite the fact that the planet is neither ….., nor ….. !!

79 earthquakes ≥2.5Mw. Map updated: 2014-06-24 13:32:27 UTC – 68 earthquakes in map area. Source: USGS/EHP

Related Links

• M6.6 Strikes near Buldir Island, Alaska June 24, 2014
• Powerful Quake Strikes Alaska June 24, 2014

Powerful Quake Strikes Alaska

SEISMIC HAZARD
HEIGHTENED GLOBAL SEISMICITY
SCENARIOS 08, 07
.

M7.9 Strikes 24km SE of Little Sitkin Island, Alaska

Centered at 51.797°N, 178.760°E the earthquake occurred at a depth of 107.5km (66.8mi) and was followed by dozens of aftershocks including 10 shocks measuring 4.8Mw or greater, as of posting.

5.7 7km NW of Little Sitkin Island, Alaska 2014-06-24 00:52:28 UTC 102.6 km
4.8 7km N of Little Sitkin Island, Alaska 2014-06-23 23:39:32 UTC 100.0 km
4.5 16km SW of Little Sitkin Island, Alaska 2014-06-23 23:33:52 UTC 94.1 km
4.9 Rat Islands, Aleutian Islands, Alaska 2014-06-23 22:47:53 UTC 117.5 km
5.9 3km ENE of Little Sitkin Island, Alaska 2014-06-23 22:29:51 UTC 103.1 km
4.7 Rat Islands, Aleutian Islands, Alaska 2014-06-23 22:18:37 UTC 118.0 km
5.1 11km N of Little Sitkin Island, Alaska 2014-06-23 22:03:28 UTC 117.3 km
4.8 7km WSW of Little Sitkin Island, Alaska 2014-06-23 21:42:57 UTC 116.9 km
5.9 11km WNW of Little Sitkin Island, Alaska 2014-06-23 21:30:47 UTC 109.1 km
6.0 6km WNW of Little Sitkin Island, Alaska 2014-06-23 21:11:41 UTC 106.8 km

Tsunami Warning Canceled
A tsunami was generated by this event but does not pose a threat to the coastal araes.  Some areas may see small sea level changes.

EQ Location Map

Source: USGS/EHP

Other Recent Significant Seismicity

Oklahoma
2.7 7km NNE of Stillwater, Oklahoma 2014-06-24 01:53:23 UTC 7.4 km
2.9 12km WNW of Medford, Oklahoma 2014-06-23 15:26:14 UTC 5.0 km
3.5 11km WNW of Medford, Oklahoma 2014-06-23 13:44:59 UTC 5.5 km
3.3 11km WNW of Medford, Oklahoma 2014-06-23 09:48:01 UTC 4.6 km
3.2 13km SW of Guthrie, Oklahoma 2014-06-23 07:42:06 UTC 6.9 km

Kermadec Islands, New Zealand Region
6.9 96km SSE of Raoul Island, New Zealand 2014-06-23 19:19:16 UTC 20.0 km
6.3 87km SSE of Raoul Island, New Zealand 2014-06-23 19:21:48 UTC 20.0 km
6.2 85km SSE of Raoul Island, New Zealand 2014-06-23 20:06:19 UTC 20.0 km
5.9 Kermadec Islands, New Zealand 2014-06-23 22:20:04 UTC 10.0 km

Related Links

• Significant Quakes Strike Oklahoma, Alaska June 16, 2014

• Alaska Keeps on Shaking! June 9, 2014
• Alaska Rattled by Earthquake Cluster June 8, 2014
• Significant Quakes Strike Alaska, Hawaii, Oklahoma May 10, 2014

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IMPORTANT NOTICE: FIRE-EARTH EQ Forecast

The next detailed FIRE-EARTH Earthquake Forecast will be published in the Members Bulletin today,  June 24, at 06:32 UTC.

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Busy Day at the Pacific Rim of Fire

M6.5 quake strikes near Atka, Alaska

Strong quake measuring 6.5Mw struck about 77km (48mi) SSW of Atka, Alaska at 02:32 UTC, Wednesday, September 4, 2013.

The quake was centered at 51.592°N 174.760°W, and struck about 39.9km (24.8mi) deep, USGS/EHP reported.

NO tsunami reported.

Two significant aftershocks followed the mainshock, as of posting.

• 5.5Mw + 78km SSW of Atka, Alaska 2013-09-04 13:16:31 UTC+09:00 D=34.6 km
• 5.2Mw + 80km SW of Atka, Alaska 2013-09-04 14:15:56 UTC+09:00 D=44.8 km

The quake followed similar size shocks that struck Izu Islands, Japan Region and Bella Bella, Canada since late Tuesday.

Pacific Ring of Fire – Earthquake Location Map No. 2, Sept. 4, 2013. at 06:10UTC. Image source: USGS/EHP.

Pacific Ring of Fire – Earthquake Location Map No.1, Sept. 4, 2013 at 01:20UTC. Image source: USGS/EHP.

Related Links

• Strong Quakes Strike Japan, Canada Regions September 4, 2013
• https://feww.wordpress.com/earthquake/#comment-55956