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Volcano Hazard Program images.
Ash, erupted from the early phases of the 2004 Mount St. Helens activity, is remobilized from the surface of an ash-covered from a moving vehicle.
Ash, erupted from the early phases of the 2004 Mount St. Helens activity, is remobilized from the surface of an ash-covered from a moving vehicle.
Crater and 1980-1986 dome of Mount St. Helens with the glacier on the right. View toward the south.
Crater and 1980-1986 dome of Mount St. Helens with the glacier on the right. View toward the south.
Dome inside the crater of Mount St. Helens, with the 2004 "welt" in a darker grey shade at the south edge (top in this photo) of the lighter colored 1980-86 dome. Aerial view toward the south.
Dome inside the crater of Mount St. Helens, with the 2004 "welt" in a darker grey shade at the south edge (top in this photo) of the lighter colored 1980-86 dome. Aerial view toward the south.
Mount St. Helens dome and jumbled glacier from the south. October 2005
Mount St. Helens dome and jumbled glacier from the south. October 2005
Crater and 1980-86 lava dome of Mount St. Helens, ash covered areas are grey, and new vent is the depression in lower center of photograph. Spirit Lake is in the background. View toward the north.
Crater and 1980-86 lava dome of Mount St. Helens, ash covered areas are grey, and new vent is the depression in lower center of photograph. Spirit Lake is in the background. View toward the north.
Beginning of plume above Mount St. Helens dome, as seen from Johnston Ridge Observatory.
Beginning of plume above Mount St. Helens dome, as seen from Johnston Ridge Observatory.
Mount St. Helens crater and dome as seen from the northeast. To the right of the dome, the snout (nose or leading edge) of Crater Glacier is visible. October 2005
Mount St. Helens crater and dome as seen from the northeast. To the right of the dome, the snout (nose or leading edge) of Crater Glacier is visible. October 2005
Mount St. Helens dome and jumbled glacier from the south. October 2005
Mount St. Helens dome and jumbled glacier from the south. October 2005
Mount St. Helens dome as seen from above the southwestern crater rim. Ash from the plume of 10-01-04 is visible on the glacier at the base of the dome. The vent from that event is visible at the base of the dome on the right. October 2005
Mount St. Helens dome as seen from above the southwestern crater rim. Ash from the plume of 10-01-04 is visible on the glacier at the base of the dome. The vent from that event is visible at the base of the dome on the right. October 2005
South side of Mount St. Helens lava dome, glacier (cracked snowy surface in foreground at base of dome) is being uplifted due to increase in activity. October 2, 2004.
South side of Mount St. Helens lava dome, glacier (cracked snowy surface in foreground at base of dome) is being uplifted due to increase in activity. October 2, 2004.
View of the south side of the dome from over the crater rim.
View of the south side of the dome from over the crater rim.
Ash on southwest crater floor, as seen from the south crater rim. Mount St. Helens dome is on the right.
Ash on southwest crater floor, as seen from the south crater rim. Mount St. Helens dome is on the right.
Plume within Mount St. Helens' crater, October 1, 2004 at 12:03:32 PDT.
Plume within Mount St. Helens' crater, October 1, 2004 at 12:03:32 PDT.
Plume/crater image of Mount St. Helens October 1, 2004 at 12:13 PDT.
Plume/crater image of Mount St. Helens October 1, 2004 at 12:13 PDT.
Plume within Mount St. Helens' crater, October 1, 2004 at 12:16 PDT.
Plume within Mount St. Helens' crater, October 1, 2004 at 12:16 PDT.
Plume/crater image of Mount St. Helens October 1, 2004 at 12:08:38 PDT.
Plume/crater image of Mount St. Helens October 1, 2004 at 12:08:38 PDT.
Mount St. Helens' crater, dome, and glacier uplift from the southeast, after steam and ash eruption.
Mount St. Helens' crater, dome, and glacier uplift from the southeast, after steam and ash eruption.
Vent blasted through the Mount St. Helens' crater glacier.
Vent blasted through the Mount St. Helens' crater glacier.
1980-1986 Mount St. Helens' dome and glacier uplift (cracked gray surface in snow to left of main dome) from the east, before steam and ash eruption.
1980-1986 Mount St. Helens' dome and glacier uplift (cracked gray surface in snow to left of main dome) from the east, before steam and ash eruption.
Plume within Mount St. Helens' crater, October 1, 2004 at 12:03:23 PDT.
Plume within Mount St. Helens' crater, October 1, 2004 at 12:03:23 PDT.
Plume from Johnston Ridge Observatory, Mount St. Helens. October 1, 2004.
Plume from Johnston Ridge Observatory, Mount St. Helens. October 1, 2004.