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Monitoring Instruments and Data at Mount St. Helens

Click on map icons to access monitoring information for events and instruments.
Instrument locations are approximate.

Legend
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  • Click inside map to enable mouse wheel zoom.
  • Some instruments may have their positions adjusted, especially when several instruments share the same location.
  • Use the zoom feature to more easily select markers in cluttered regions of the map.


Instruments
Show Available Quakes
Magnitude (range):
Days ago (range):


Earthquakes In Region
(Within magnitude and date range.)
 
Mag
Date/Time (UTC)
Depth (km)