March 27th, 1980. 52 days before the Mount St. Helens eruption
The first hole appears on the northwest face of the summit as seismic activity from the movement of magma deep in the mountain increases.
Aerial reconnaissance over Mount St. Helens shows the first signs of the impending eruption, an ash plume and vent appearing just off the summit. These first aerials of the mountain showing volcanic activity include descriptions of the event by crew in the helicopter.
At 1:51 into the video the top of the mountain can first be seen with the darkened area of ash stark against the white of the snow.
3:00 into the video a radio transmission from the helicopter can be heard with an altitude report.
At 5:00 the first sights of the initial crater being created by venting. Radio transmissions confirm the sighting.
At 7:56 a small landslide is witnessed within the crater.
This is newly restored video from the KGW archives.
It is presented in it's original 4x3 registration.
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Негізгі бет RAW VIDEO: Mount St. Helens March 27, 1980. 52 days until the eruption
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