Tuesday, March 24, 2009

Redoubt webicorder

I didn't realize that there was actually a name for the online digitized seismograms I have shown from time to time. According to the Alaska Volcano Observatory (AVO), these are called webicorders.

Mt. Redoubt has been spewing ash, and the AVO has reports, tweets, photos, videos. But of course, here, we need to focus on seismograms of those harmonic tremors that accompany themagma moving in the volcano.

The webicorder at Redoubt is pretty intense right now. Have a look. The image at the time of this blog entry is shown below. Click on it for an enlarged image.

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