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Archive for the ‘Ebeko’ Category

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:

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Weekly VolcanoWatch [13 May 2009]

Posted by feww on May 14, 2009

Volcanic Activity Report: 6 May – 12 May 2009

Source: Global Volcanism program (GVP) – SI/USGS Weekly Volcanic Activity Report

New activity/unrest:

VoW: Curacoa


A submarine volcano south of Curacoa Reef at the northern end of the Tofua volcanic arc was first observed in eruption in 1973. Explosive eruptions, which produced large rafts of dacitic pumice covering an area of more than 100 sq km, were observed from the island of Tafahi, 27 km to the SSW. The eruption site was located about 6.5 km SW of Curacoa Reef. Multiple submarine vents are apparently located in this area; a second eruption was reported in 1979 from a location 13 km north of Tafahi. Photo by the crew of the vessel “Port Nicholson,” 1973 (courtesy of Tom Simkin, Smithsonian Institution). Caption: GVP.

FEWW Forecast: FEWW earth model suggests Curacoa may explode spectacularly in one or more episodes this year. [Photos, or eye-witness accounts of any activity will get an honorable mention on the blog.]

  • Country: Tonga
  • Region: Tonga Islands
  • Volcano Type: Submarine volcano
  • Last Known Eruption: 1979
  • Summit Elevation: -33 m – 108 feet
  • Latitude: 15.62°S 15°37’0″S
  • Longitude: 173.67°W 173°40’0″W

Ongoing Activity:

Latest U.S. Volcano Alerts and Updates for Wednesday, May 13, 2009 at 22:20 AKDT (May 14, 2009 06:20 UTC)

  • Redoubt Activity – Color Code ORANGE : Alert Level WATCH

  • Kilauea Activity  –  Color Code ORANGE : Alert Level WATCH

  • Veniaminof Activity – Color Code YELLOW : Alert Level ADVISORY

  • Mauna Loa Activity – Color Code YELLOW : Alert Level ADVISORY

Related Links:

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