Small, short explosion rocks Cleveland Volcano in Aleutians

April 5, 2012ALASKAThe Alaska Volcano Observatory says a small explosion at Cleveland Volcano in the Aleutian Islands may have sent up a small ash cloud. Clouds prevented satellite observation of an ash cloud. The observatory says the explosion at 1:12 p.m. Wednesday was of short duration and similar to small events in December. Those explosions created ash clouds that dissipated quickly and did not affect air traffic. Cleveland Volcano is a 5,675-foot peak on an uninhabited island 940 miles southwest of Anchorage. Scientists detected the explosion on distant infrasound seismic networks. Infrasound refers to frequencies below what can be heard by the human ear. Scientists say that if a larger explosion occurs that sends ash more than 20,000 feet high, the eruption should be detected by seismic, infrasound or lightning networks. –News Tribune
This entry was posted in Earth Changes, Earth Watch, Earthquake Omens?, High-risk potential hazard zone, Seismic tremors, Signs of Magnetic Field weakening, Volcanic Eruption, Volcano Watch. Bookmark the permalink.

1 Response to Small, short explosion rocks Cleveland Volcano in Aleutians

  1. yamkin says:

    A Pair Of Small Eruptions Are Recorded On Cleveland Volcano

    The U.S. Geological Survey recorded two small eruptions of the Cleveland Volcano on Friday detected by changes in air pressure.

    The agency says neither explosion produced an ash cloud that could be detected in satellite images.

    Sudden explosions of blocks and ash are likely while the volcano remains active.

    The agency says it’s possible for associated ash clouds to exceed 20,000 feet above sea level.


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