United States Volcanic Eruptions, Over the last 6,372 Years.

July 15, 2013 Significant Volcanoes of the United States Over the last 6372 Years, by State: I downloaded all significant volcanic eruptions from 4650 B.C. to 2012 and graphed the 33 that occurred in the U.S. by State (above). Over half (18) occurred in Alaska, nine in Hawaii and two each in the Mariana Islands, Washington State and the Admiralty Islands.

The Mariana Islands were acquired during WWII and are composed of two U.S. Territorial Jurisdictions: (1) The Commonwealth of the Northern Mariana Islands and (2) The Territory of Guam. Both Asuncion and Sarigan (picture above) are located in the Philippine Sea.

The volcanic eruptions listed for Washington State are the same volcano – Mount St. Helens (picture above). The 1860 B.C. eruption was a colossal VEI 6, while the much studied May 18, 1980 eruption was a powerful VEI 5.

The Admiralty Islands (pictured below) are a group of about 40 volcanic and coral islands in the SW Pacific. They are part of Papua New Guinea, in the Bismarck Archipelago; with the largest island by far being Manus. The U.S. maintains a military base there, which was established during WWII. Near the base, in St. Andrew Strait, a volcano erupted in 150 B.C. and on June 27, 1953.

The Hawaiian Island eruptions:

The nine Hawaiian Island eruptions were as follows: Kilauea – 7, Mauna – 1 and Hualalai – 1. These nine eruptions occurred as early as 1790 and as late as February 10, 2010. Of those three Hawaiian volcanoes, Kilauea (picture above) is the most famous, with eruptions almost daily.

The 18 Alaskan eruptions are divided into four groups as follows: (1) The Aleutian Islands – 6, (2) Alaska SW – 6, (3) the Alaskan Peninsula – 4, and (4) Alaska East – 2. Some of the more famous Alaskan Volcanoes are Augustine, Redoubt and Cleveland. The last Alaskan eruption in the database is from Redoubt (pictured below) on March 23, 2009.

(Credits: The Smithsonian National Museum of Natural History, the National Oceanographic and Atmospheric Administration (NOAA), Summary narrative and top graphic – W. G. Foster).

The Master of Disaster

About wfoster2011

Disaster researcher and current financial and economic news and events: Accidents, economics, financial, news, nature, volcanoes, floods, earthquakes, fires; airplane, ship & train wrecks; tornadoes, mine cave-ins, hurricanes, pestilence, blizzards, storms, tzuami's, explosions, pollution, famine; heat & cold waves; nuclear accidents, drought, stampedes and general. Futures trader using high volume and open interest futures markets. Also, a financial, weather and mundane astrologer with over 30 years of experience. Three University degrees from California State University Northridge: BS - Accounting MS - Busines Administration BA - Psychology Served in the U. S. Army as an Armored Platoon Leader in the 5th Battalion, 68th Armored Regiment, 8th Infantry Division (Retired). Have published three books and 36 articles available for sale through my blog: Commodology - Secret of Soyobeans (Financial Astrology) Timing is the Key (Financial Astrology) Scum City, a fiction novel (no longer available, under contract to major publisher) Currently resident of Las Vegas, NV, USA
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6 Responses to United States Volcanic Eruptions, Over the last 6,372 Years.

  1. --Rick says:

    I read that Yosemite is a super volcano well overdue [not sure how the scientists calculate that] for a blow out and that it has the potential to create massive destruction over one third of the U.S. Volcanology appears to be about as reliable as climate change science. You go to one site and they tell you that there is no chance of a catastrophic blow up for at least 1,000, if not 100,000 years.

    Meanwhile, <a href="http://www.theblaze.com/stories/is-america-headed-for-yellowstone-super-volcano-eruption-catastophe/another site tells you that 2/3rds of the country would be uninhabitable should Yosemite blow and that it is quite possible that it could erupt anytime. They site 3 eruptions over 1.2 million years; the last being just around your beginning point at an estimate of 600,000 years.

    Any insight on Yosemite? [I’m on the east coast, so I’m not very alarmed for myself, although, it seems that realistically, were it to erupt as the second source states, no one would really be safe.

    • wfoster2011 says:

      The Yosemite Caldera is indeed a super volcano, although their is considerable debate on when, or if, it will erupt in the near future. Read my post on this subject, December 18, 2011. Just type “Beauty and the Beast” into the search box in the upper right hand corner of the main page, under the words, “Email Subscriptions.”
      I doubt that it will erupt anytime soon, but if it does it would it would make Krakatau, Tambora and St. Helens look like childs play. The entire planet would be catrostrophically alterned forever. It would be a global disaster of biblical proportions!
      Bill Foster

  2. I live in Mooresville NC and our land is full of lava rocks. We live around 2 hrs from Boone NC which is the closest mountains to us. So my question is where and how long ago did this volcano erupt. Now when I say alot of rocks I mean A LOT…..Thank You Julie Cantrell.

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