Current Seismic Activity

These seismograms display the vertical component of the broadband channel of station WUAZ. The digitizer samples activity 20 times per second. There are three images available.

What is the difference between the following 3 seismograms?

BHZ Non-filtered
This displays the recent broadband vertical data.

Vertical long period.
This displays the recent long-period data which will clearly display large (M>5.5) earthquakes.

Vertical short period.
This displays the recent high-frequency data around Sunset Crater Arizona.

Compare to BHZ Non-filtered, Vertical long period., or Vertical short period. at station TUC, Tucson, Arizona.

The images are updated every 5-10 minutes. If you are using Netscape as your browser you can force the image to be reloaded by hitting the reload button in the Netscape toolbar.

If there is no image, it may be that a new image is under construction. Try waiting a 15-30 seconds, and then reload this page. .

Current display status

The seismogram display software was developed by Steve Sorenson.