Three Sisters (Oregon) - Recent History

Recent History

In 2001 a satellite discovered that there was a deforming uplift 3 miles (4.8 km) west of the South Sister. There was concern that the mountain was awakening. A map at the Lava Lands Visitor Center of the Newberry National Volcanic Monument south of Bend shows the extent of the uplift, centered a few miles west of the South Sister and reaching a maximum of 11 inches. In 2004 an earthquake swarm occurred with the epicenter in the area of uplift. The hundreds of small earthquakes subsided over several days. As of 2007 the uplift had slowed and concern had diminished though the area was still considered potentially active.

Read more about this topic:  Three Sisters (Oregon)

Famous quotes containing the word history:

    The history of our era is the nauseating and repulsive history of the crucifixion of the procreative body for the glorification of the spirit.
    —D.H. (David Herbert)

    When the coherence of the parts of a stone, or even that composition of parts which renders it extended; when these familiar objects, I say, are so inexplicable, and contain circumstances so repugnant and contradictory; with what assurance can we decide concerning the origin of worlds, or trace their history from eternity to eternity?
    David Hume (1711–1776)