PNSN Logo
The Pacific Northwest Seismic Network

All about earthquakes and geologic hazards of the Pacific Northwest        



HOME | Latest Quakes | Volcanoes | Catalogs & Data | Hazards & Preparation | Research | Outreach & Education | Operations & Projects
  
UW Home | Dept. of E&SS | REPORT AN EARTHQUAKE | USGS EQhazards | USGS PNW | Seismosurfing | Site Map | CONTACT US

Mt. St. Helens

Latest Advisory
Webicorders
Webcam

Earthquake Locations
   This Month
   This Year
   This Decade

Energy Released
   This Month
   This Year
   This Decade
   1981-1992
   During 1980

Time-Depth Plots
   This Month
   This Year
   This Decade
   1980-1998

Other Figures
Average Signal Amplitudes
Magnitude vs. Time

For Further Reading

Mount Adams | Mount Baker | Crater Lake | Glacier Peak | Mount Hood | Mount Rainier | Mount St. Helens | Three Sisters
Mount St. Helens
Click links in left column to navigate
Seismicity Disclaimer


Volcanic Unrest Quick Info
  • Current status is Volcano Normal (Alert Level 1). Current aviation color code is GREEN. (July, 2008)
  • Previous status was Volcano Advisory (Alert Level 3). Previous aviation color code was YELOW. (February, 2008)
  • Last documented eruption was October 11, 2004 - January, 2008
  • Previous unrest began September 23, 2004.

Latest Volcanic Advisory and Updates
Current Update from CVO




This is file SEIS/PNSN/HELENS/welcome.html, last modified 03/01/12 (15:19) . If you see any problems e-mail: seis_web@ess.washington.edu