PubTalk-08/2022 - The National Geologic Map Database - A wealth of geologic information at your fingertips!
1:16:15
PubTalk-08/2022 - The National Geologic Map Database - A wealth of geologic information at your fingertips!
Aug 25, 2022
usgs.gov
On May 18, 1980, 30 year old USGS geologist David A. Johnston was monitoring Mount St. Helens from a ridge known as Coldwater II in Washington. At 8:32 a.m., a massive earthquake triggered the largest landslide in recorded history, causing the entire north face of the volcano to collapse. Johnston was the first to witness the catastrophic lateral blast and immediately radioed his famous final words: Vancouver! Vancouver! This is it! The horror of the event was the sheer physical force of the exp
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On May 18, 1980, 30 year old USGS geologist David A. Johnston was monitoring Mount St. Helens from a ridge known as Coldwater II in Washington. At 8:32 a.m., a massive earthquake triggered the largest landslide in recorded history, causing the entire north face of the volcano to collapse. Johnston was the first to witness the catastrophic lateral blast and immediately radioed his famous final words: Vancouver! Vancouver! This is it! The horror of the event was the sheer physical force of the exp
178.9K views4 months ago
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Lahars – The Most Threatening Volcanic Hazard in the Cascades
Lahars – The Most Threatening Volcanic Hazard in the Cascades
Dec 7, 2023
usgs.gov
USGS scientists who study environmental change lead exciting lives. Take a peek into the daily lives of those who work with the Climate Research and Development Program in our video. 👀🎬🍿📽️ Learn more about their work here: https://ow.ly/lSQO50PM9Hr USGS video by Peter Pearsall Watch the close-captioned version of the video here: https://ow.ly/lczx50PM9Ht And the audio-described version of the video here: https://ow.ly/o0vp50PM9yv | U.S. Geological Survey (USGS)
2:35
USGS scientists who study environmental change lead exciting lives. Take a peek into the daily lives of those who work with the Climate Research and Development Program in our video. 👀🎬🍿📽️ Learn more about their work here: https://ow.ly/lSQO50PM9Hr USGS video by Peter Pearsall Watch the close-captioned version of the video here: https://ow.ly/lczx50PM9Ht And the audio-described version of the video here: https://ow.ly/o0vp50PM9yv | U.S. Geological Survey (USGS)
1.2K viewsSep 15, 2023
FacebookU.S. Geological Survey (USGS)
David A Johnston (American Volcanologist) ~ Wiki & Bio with Photos | Videos
David A Johnston (American Volcanologist) ~ Wiki & Bio with Photos | Videos
3 months ago
alchetron.com
On the evening of May 18, 1980, volcanologist David A. Johnston of the U.S. Geological Survey was stationed at a field post on Coldwater Ridge in Washington, about 6 miles from Mount St. Helens, monitoring the restless volcano after weeks of escalating earthquakes, steam blasts, and visible deformation of the mountain’s north flank. Johnston was regarded as one of the leading young experts on volcanic hazards, and he had been warning that the bulging north side could fail catastrophically, sendi
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On the evening of May 18, 1980, volcanologist David A. Johnston of the U.S. Geological Survey was stationed at a field post on Coldwater Ridge in Washington, about 6 miles from Mount St. Helens, monitoring the restless volcano after weeks of escalating earthquakes, steam blasts, and visible deformation of the mountain’s north flank. Johnston was regarded as one of the leading young experts on volcanic hazards, and he had been warning that the bulging north side could fail catastrophically, sendi
63.2K views3 months ago
FacebookThe Scarecast
ReViVE Sunday | Pastor David A. Johnson, II | Sunday April 26, 2026
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ReViVE Sunday | Pastor David A. Johnson, II | Sunday April 26, 2026
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