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USGS/Cascades Volcano Observatory, Vancouver, Washington

News and Current Events,
Information Announcements, and
Volcano Updates


Mount St. Helens, Washington, 2004
Top of dome, vent and glacier ice
October 27, 2004.
Top of new growth on dome, vent and glacier ice.


Quick Links
Click button for CVO Cascade Range Current Activity Menu Current Update

Click button for Link to Univ. of Washington Mount St. Helens Seismicity Link to:   University of Washington Webicorders

Click button for CVO Mount St. Helens Current Images Current Images of Mount St. Helens
"user-friendly", with thumbnails, web-quality medium-size images (100K) and media-quality large-size images (2-3M),
NOTE: NO "real-time" images


Agency Links

Background Information
Past Updates, Advisories, and Information Statements for the Cascade Range

Alert Levels for the Cascade Range Volcanoes - Information

Alert Levels for the Cascade Range Volcanoes - Poster -- [PDF Format, 240K]

Location Map - Cascade Range Volcanoes

Seismic Signal Examples -- including a small gas and ash explosion -- [PDF Format, 915K]

Volcanic Ash Website -- "What it can do and how to prevent damage" -- Link

Volcanic Explosivity Index (VEI) information -- [PDF Format, 1.4M]


Background Information - Mount St. Helens
Mount St. Helens General Menu

Past Updates, Advisories, Information Statements, and Monthly Seismic Graphs for Mount St. Helens

Location Map - Mount St. Helens

Map - Mount St. Helens Hazards Zones -- [regional, large-scale, JPG Format, 467K, 1084x715pixels]

Mount St. Helens -- From the 1980 Eruption to 2000, USGS Fact Sheet FS036-00

Volcanic-Hazard Zonation for Mount St. Helens, Washington, 1995, USGS Open-File Report 95-497 -- Current Hazards Report


Miscellaneous
Media Advisory - Interior Secretary Gale Norton visit, October 2, 2004 -- [PDF Format]

MORE News and Current Events

  • Page Two
    New on this website, Office events, World-Wide volcanic information links, and MORE



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If you have questions or comments please contact: <GS-CVO-WEB@usgs.gov>
10/29/04, Lyn Topinka