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West Mata - Explosive Deep-Ocean Volcano

  1. Dec 20, 2009 #1

    Astronuc

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    Scientists Discover and Image Explosive Deep-Ocean Volcano
    http://www.noaanews.noaa.gov/stories2009/20091217_volcano2.html
    NOAA-NSF Mission Adds to Understanding of Basic Earth Processes
    December 17, 2009
    This area has had some rather significant earthquakes lately. I wonder if they are tied to whatever is driving this volcano?

    The summit of West Mata Volcano is nearly a mile below the ocean surface (1,165 meters / 3,882 feet), and the base, shown in blue, descends to nearly two miles (3,000 meters / 9,842 feet) deep. The volcano, located in the Lau basin (15° 5' S, 173° 45' W) near the Tonga Trench, has a six-mile-long rift zone running along its spine in a SW/NE orientation.

    http://www.noaanews.noaa.gov/stories2009/images/map_satellite_altimetry_labeled.png

    Some big earthquakes nearby.

    7.2 Mag - http://earthquake.usgs.gov/earthquakes/eqinthenews/2009/us2009nuam/ [Broken]
    Date/Time: Monday, November 09, 2009 at 10:44:54 UTC
    Location: 17.212°S, 178.413°E
    Depth: 585.1 km (363.6 miles)

    6.8 Mag - http://earthquake.usgs.gov/earthquakes/eqinthenews/2009/us2009pja1/ [Broken]
    Date/Time: Tuesday, November 24, 2009 at 12:47:14 UTC
    Location: 20.641°S, 174.068°W
    Depth: 10 km (6.2 miles)

    8.0 Mag - http://earthquake.usgs.gov/eqcenter/eqinthenews/2009/us2009mdbi/ [Broken]
    Date/Time: Tuesday, September 29, 2009 at 17:48:10 UTC
    Location: 15.509°S, 172.034°W
    Depth: 18 km (11.2 miles)

    Mag 8 was the big quake in Somoa.

    6.6 Mag - http://earthquake.usgs.gov/eqcenter/eqinthenews/2009/us2009kybj/ [Broken]
    Date/Time: Sunday, August 30, 2009 at 14:51:33 UTC
    Location: 15.187°S, 172.526°W
    Depth: 11 km (6.8 miles)
     
    Last edited by a moderator: May 4, 2017
  2. jcsd
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