Fire Earth

Earth is fighting to stay alive. Mass dieoffs, triggered by anthropogenic assault and fallout of planetary defense systems offsetting the impact, could begin anytime!

Posts Tagged ‘Pacific Plate subduction’

Busy Day at the Pacific Rim of Fire

Posted by feww on September 4, 2013

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.

alska quakes 9-4-2013
Pacific Ring of Fire – Earthquake Location Map No. 2, Sept. 4, 2013. at 06:10UTC. Image source: USGS/EHP.

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

Related Links

Posted in Alaska Earthquake forecast, Canada Earthquake, Significant Earthquakes, Significant Event Imagery, significant events | Tagged: , , , , , , , , , , , , | 2 Comments »

Strong Quakes Strike Japan, Canada Regions

Posted by feww on September 4, 2013

M6.9 Strikes Izu Islands, Japan Region

The quake, measuring 6.9MW and centered at 29.8°N, 139°E, struck at a depth of about 400km, according to Japan Meteorological Agency (JMA). NO tsunami expected.

The event occurred at about 00:18UTC on Wednesday September 4, 2013.

PRF- eq- sep 4-2013
Pacific Ring of Fire – Earthquake Location Map, Sept. 4, 2013. Image source: USGS/EHP.

M6.0  quake strikes 191km WSW of Bella Bella, Canada

A magnitude 6.0 quake struck offshore about 191km (119mi) WSW of Bella Bella, Canada, USGS/EHP reported.

The shallow quake occurred at a depth of about 1km, centered at 51.2°N 130.4°W, said USGS.

The mainshock was followed by several significant aftershocks, the largest of which measured 5.9Mw as of posting.

  1. 5.9Mw + 163km SW of Bella Bella, Canada 2013-09-04 09:23:12 UTC+09:00 Depth of 9.9 km
  2. 5.0Mw + 188km SW of Bella Bella, Canada 2013-09-04 07:29:32 UTC+09:00 9.8 km

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VolcanoWatch Weekly [26 Oct 2009]

Posted by feww on October 26, 2009

FEWW Volcanic Forecast

On April 21, 2009 in Sumatra’s Mt Kerinci Erupts FEWW made the following forecast

FEWW Volcanic Forecast:

1. The Loyalty – New Hebrides  Arc Collision. Intense volcanic activity should be expected throughout 2009 and beyond along the New Hebrides arc, the Vanatu region (also to the north to include Solomon Island and Santa Cruz Island), possibly continued along the New Hebrides Trench (to include Matthew and Hunter Island). Volcanoes that are located in the above-described area include:

  • Savo (Solomon Island)
  • Tinakula (Santa Cruz Island – SW Pacific)
  • Suretamatai
  • Motlav
  • Gaua
  • Mere Lava
  • Aoba
  • Ambrym
  • Lopevi
  • Kuwae
  • North Vate
  • Traitor’s Head
  • Yasur
  • Eastern Gemini Seamount
  • Matthew Island
  • Hunter Island

2. Pacific Plate subduction beneath the Okhotsk Plate. Subduction of the Pacific Plate beneath the Okhotsk Plate continues to create Intense volcanism. Starting 2009, however, a much greaterthan the average number of volcanoes located on the Kuril Islands island arc, Kamchatka volcanic arc and Japan trench to the south may erupt with renewed intensity.

And the following on June 5, 2009, having first introduced Mt Kaba earlier on Weekly Volcano Watch: 16 April 2009

FEWW Volcanic Activity Forecast:

FEWW Moderators forecast  new volcanic activity/ unrest at 50 or more volcanoes throughout the rest of 2009.

List of the volcanoes to watch this year [and in 2010] includes:

Barcena (0.8), Socorro (0.8), Curacoa (0.99), Atitlán (0.65), Vesuvius (>0.6), Bazman (0.6), Mount Shasta (>0.5), Kaba (>0.5), Bandai (>0.5), Eastern Gemini Seamount or Mathew Island volcano (0.65), Fonualei (0.65), Mount Rainier (>0.5), Jan Mayen (>0.6), Thule (0.4), Sibayak (>0.5), Volcán Guallatiri (0.65), Taveuni (>0.4),  two or more volcanoes on the island of Hokkaido (0.65), E-san (0.7), Oshima-Oshima (0.7), Komaga-take (0.65)

SI / USGS Weekly Volcanic Activity Report for 14-20 October 2009 listed both  Kaba and Gaua Volcanoes as erupting:

On 13 October, Vanuatu Geohazards Observatory confirmed that Gaua’s Mount Garat was erupting based on fieldwork done by scientists during 3-7 October. Seismic records showed multiple explosions, and a gas flux measurement of 3,000 metric tons of sulfur dioxide was detected on 3 October. The Alert Level was raised to 2 (on a scale of 0-5).

And

On 20 October, CVGHM reported that seismic activity from Kaba increased in August and remained elevated in September and October. Inflation was also detected. When weather permitted, diffuse white plumes were seen rising 25-50 m above the crater rim and drifting E. Based on the deformation and increased seismicity, CVGHN raised the Alert Level to 2 (on a scale of 1-4).

SI /USGS Weekly Volcanic Activity Report
(14 October – 20 October 2009)

New activity/Unrest:

Ongoing Activity:

Related Links:

FEWW Volcanic Activity Forecast

Other Related Links:

Recent Posts on Chaitén:

Posted in Chaiten, Ebeko, Kizimen, Kliuchevskoi, Nevado del Huila, Piton de la Fournaise, Soufrière Hills | Tagged: , , , , , , , , , , , , , , , | 2 Comments »