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Archives June 2006

Night of 30/01 July - There was a large & very bright outburst from the lavadome at 23:30 last night. This event corresponded to an Magnitude 3.3 tremor (see also YELL webicorder, and Google Maps location) - most likely indicating the collapse of a large section of the growing lavadome.
The first animation below shows the full frame processed images of the mountain which have been enhanced to maximise the brightness of the glow and the second shows those images superimposed over a daytime image of the crater for reference. The animation speed is set at 6 fps (equivalent of half an hour in real time per second).
Flash movie - enhanced images of the glow   (size 380 kB)
Flash movie - enhanced images of the glow, superimposed on a background image of the mountain - only the area around the crater is animated (size 208 kB)

Night of 29/30 June - The glow from the lavadome was most active between 23:00 and 03:00 this morning, with several small bright outbursts visible on the images.
The first animation below shows the full frame processed images of the mountain which have been enhanced to maximise the brightness of the glow and the second shows those images superimposed over a daytime image of the crater for reference. The animation speed is set at 6 fps (equivalent of half an hour in real time per second).
Flash movie - enhanced images of the glow   (size 389 kB)
Flash movie - enhanced images of the glow, superimposed on a background image of the mountain - only the area around the crater is animated (size 208 kB)

Night of 28/29 June - Another gloriously clear night and the glow from the lavadome was burning brightly at sunset then slowly faded during the night.
The first animation below shows the full frame processed images of the mountain which have been enhanced to maximise the brightness of the glow and the second shows those images superimposed over a daytime image of the crater for reference. The animation speed is set at 6 fps (equivalent of half an hour in real time per second).
Flash movie - enhanced images of the glow   (size 356 kB)
Flash movie - enhanced images of the glow, superimposed on a background image of the mountain - only the area around the crater is animated (size 184 kB)

Night of 27/28 June - The night was clear and there were several tremors larger than the background, but the only visible activity occurred at 04:18. This appears to coincide with a broad seismic signal recorded on the Yellow Rock webicorder that lasted from 04:16 until 04:19.
The first animation below shows the processed images at the approximate brightness as seen in the Volcanocam images and the second shows the same images superimposed over a daytime image of the crater for reference. The animation speed is set at 2 fps (equivalent of 10 minutes in real time per second) and only the images where the glow was visible are included.
Flash movie - images of the glow   (size 106 kB)
Flash movie - images of the glow, superimposed on a background image of the mountain - only the area around the crater is animated (size 82 kB)

Night of 26/27 June - Another clear night and the glow from the lavadome was intermittently visible throughout the night - but there were no particularly bright outbursts.
The animation below shows the full frame processed images of the mountain which have been enhanced to maximise the brightness and superimposed over a daytime image of the crater for reference. The animation speed is set at 6 fps (equivalent of half an hour in real time per second).
Flash movie - enhanced images of the glow, superimposed on a background image of the mountain - only the area around the crater is animated (size 166 kB)

Night of 24/25 June - It was a clear night and there were a couple of outbursts of activity last night. The first was soon after sunset at 21:56 and the brightest outburst occurred at 01:46 - neither of which appeared to corresponded with larger tremors on the seismic traces (e.g. see YELL webicorder).
The first animation below shows the full frame processed images of the mountain which have been enhanced to maximise the brightness of the glow and the second shows those images superimposed over a daytime image of the crater for reference. The animation speed is set at 6 fps (equivalent of half an hour in real time per second).
Flash movie - enhanced images of the glow   (size 330 kB)
Flash movie - enhanced images of the glow, superimposed on a background image of the mountain - only the area around the crater is animated (size 201 kB)

Night of 22/23 June - The first clear night since 12 June didn't present a very active view of Mount St Helens. The incandescent glow from the lavadome was only visible briefly at 22:47 and 03:22 last night - with the event at 03:22 indicating a small rock slide from near the top of the growing lavadome fin.
The first animation below shows the full frame processed images of the mountain which have been enhanced to maximise the brightness of the glow and the second shows those images superimposed over a daytime image of the crater for reference. The animation speed is set at 6 fps (equivalent of half an hour in real time per second).
Flash movie - enhanced images of the glow   (size 320 kB)
Flash movie - enhanced images of the glow, superimposed on a background image of the mountain - only the area around the crater is animated (size 175 kB)

Night of 11/12 June - Mount St Helens was partly shrouded in clouds last night, but the glow from the lavadome was visible a couple of times between 00:00 and 01:00.
The first animation below shows the full frame processed images of the mountain which have been enhanced to maximise the brightness of the glow and the second shows those images superimposed over a daytime image of the crater for reference. The animation speed is set at 6 fps (equivalent of half an hour in real time per second).
Flash movie - enhanced images of the glow   (size 368 kB)
Flash movie - enhanced images of the glow, superimposed on a background image of the mountain - only the area around the crater is animated (size 175 kB)

Night of 10/11 June - The clouds parted a couple of hours before sunset and the full moon illuminated the mountain. The incandescent glow was confined to the large "fin" or "spine" at the top of the growing lavadome, and was relatively consistent throughout the night. There were no major outbursts seen. It's great to have some good weather back again :-)
The first animation below shows the full frame processed images of the mountain which have been enhanced to maximise the brightness of the glow and the second shows those images superimposed over a daytime image of the crater for reference. The animation speed is set at 6 fps (equivalent of half an hour in real time per second).
Flash movie - showing images of the glow   (size 448 kB)
Flash movie - enhanced images of the glow, superimposed on a background image of the mountain - only the area around the crater is animated (size 261 kB)

Night of 02/03 June - The clouds parted during the night sufficiently to provide a view of the crater for most of the night. There were several rock-falls and associated outbursts at 23:58, 00:18 and 02:18. The rock-falls originated from the top of the growing "fin" or "spine" as well as lower down on the older part of the growing lavadome, as can be seen  by combining many of the frames from last night in one image
The first animation below shows the full frame processed images of the mountain which have been enhanced to maximise the brightness of the glow and the second shows those images superimposed over a daytime image of the crater for reference. The animation speed is set at 6 fps (equivalent of half an hour in real time per second).
Flash movie - showing images of the glow   (size 160 kB)
Flash movie - enhanced images of the glow, superimposed on a background image of the mountain - only the area around the crater is animated (size 302 kB)