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Filters: Tags: USGS PIO Collection (X) > partyWithName: Topinka, Lyn (X)

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Caption: From Opus instrument station, USGS geologist, Dan Dzurisin, observes the new 30 m high lobe of Mount St. Helens 280m high lava dome. October 23, 1986. Photo taken by Lyn Topinka, U.S. Geological Survey, David A. Johnston Cascades Volcano Observatory, Vancouver, Washington. PIO No. 10231986
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Caption: Aerial view of Mount St. Helens 280m high lava dome with new lobe on the top. Photo taken from the south. Note Sprirt Lake and Mt. Rainier to the north. October 28, 1986. Photo taken by Lyn Topinka, U.S. Geological Survey, David A. Johnston Cascades Volcano Observatory, Vancouver, Washington. PIO No. 80-10281986
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Caption: Three years later: Mount St. Helens remains active and watched. Three years after the cataclysmic eruption of Mount St. Helens on May 18, 1980, the U.S. Geological Survey scientists continue to monitor the volcano and its actively growing lava dome. USGS observers are shown surveying the shape of the dome from inside the crater blasted out by the 1980 eruption. Bright orange targets are placed high on the dome and are surveyed from stations established on the crater floor, like this one 200 yards north of the dome. By monitoring the inflation or swelling of the lava dome as magma moves up into it, geologists can predict eruptions up to three weeks in advance. Between eruptions, the dome inflates less...
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Handwritten notes on negative enclosure: MSH, 1983, from Harry's Ridge. 04-29-1983. Lynn Topinka, USGS/CVO. Similar to Lyn Topinka photograph number, msh00060 and PIO_83_43.


    map background search result map search result map USGS geologist, Dan Dzurisin, observes new 30m high lobe of Mount St. Helens lava dome. Skamania County, Washington. 1986. Aerial view of Mount St. Helens 280m high lava dome. Skamania County, Washington. 1986. Mount St. Helens taken from Harry's Ridge. Skamania County, Washington. 1983. Geologists monitoring Mount St. Helens lava dome. Skamania County, Washington. 1982. USGS geologist, Dan Dzurisin, observes new 30m high lobe of Mount St. Helens lava dome. Skamania County, Washington. 1986. Aerial view of Mount St. Helens 280m high lava dome. Skamania County, Washington. 1986. Mount St. Helens taken from Harry's Ridge. Skamania County, Washington. 1983. Geologists monitoring Mount St. Helens lava dome. Skamania County, Washington. 1982.