January 2005

Night of 29/30 January - the glow was present last night, at an extremely low level of activity. I have adjusted the levels to enhance the visibility of the glow, but if it gets much dimmer than this there won't be anything other than digital noise left after processing!
Flash movie - showing the enhanced glow superimposed on a background image of the mountain for reference (size 552 kB)

Night of 29/30 January - it appears that another fracture and landslide occurred last night at 23:18. The glow faded afterwards and disappeared entirely about an hour later. The USGS/CVO have a new webpage discussing these events. The following movies include images from 23:00 - 02:18.
Flash movie - showing only the glow after enhancing the brightness of the glow (size 124 kB)
Flash movie - showing the enhanced glow superimposed on a background image of the mountain for reference (size 134 kB)

Night of 23/24 January - the glow was visible from about 22:00 onwards, but it was relatively faint. The first movie below is a fairly accurate view of how bright the glow is on the Volcanocam images, the second movie has been enhanced to maximise the brightness of the glow in order to indicate where the activity is occurring.
Flash movie - showing the glow superimposed on a reference image of the mountain (size 262 kB)
Flash movie - showing a brightness enhanced glow superimposed on a reference image of the mountain (size 257 kB)

Night of 21/22 January - another bright flash appeared on the images last night at 01:29 then very rapidly faded from view. The glow was not visible at any other time during the night. Another piece of the lavadome may have fractured, but the event was not as large as that on the nights of 13/14 or 14/15 Jan.
Flash movie - showing only the glow (size 488 kB)
Flash movie - showing the glow superimposed on a reference image of the mountain (size 520 kB)

Night of 14/15 January - another bright flash appeared on the images last night at 22:59 then rapidly faded from view. The glow was not visible at any other time during the night. It looks like another piece of the lavadome may have fractured, but the event was not as large as that on the night of 13/14 Jan. I have only included the frames from around the time of the flash and slowed the animation down to 2fps. The second movie was enhanced to provide maximum brightness to show the full extent of the glow.
Flash movie - showing the glow superimposed on a reference image of the mountain (size 65 kB)
Flash movie - showing enhanced images of the glow superimposed on a reference image of the mountain (size 82 kB)

Night of 13/14 January - Something spectacular happened last night at 20:39 - a very large flare erupted on the mountain which slowly died down over the next half hour. This may correspond to a large piece of the lavadome breaking off briefly exposing hot lava to the outside air. The first of the following movies shows the images cleaned up to remove noise and deblurred. The second was adjusted to enhance the brightness of the glow to a maximum, and the last shows the enhanced glow images superimposed over a reference image of the mountain.
Flash movie - showing only the glow after noise removal and sharpening (size 181 kB)
Flash movie - showing the glow after maximising the brightness of the area around the glow (size 201 kB)
Flash movie - showing the enhanced glow superimposed on a background image of the mountain for reference (size 223 kB)

Night of 10/11 January - It seems that fears of the demise of the glow appear to be unfounded. The glow returned during last nights clear weather and flickered on and off intermittently during the night. The following movies were processed to reduce noise and de-blurred to improve the view.
Flash movie - showing only the glow (size 161 kB)
Flash movie - showing the glow superimposed on a background image of the mountain for reference (size 181 kB)

Night of 04/05 January - despite the clear weather and excellent views of the mountain, the glow was almost imperceptible in the images from last night. In order to see if the glow was still present at all, I adjusted the dynamic range of the images (to an extreme level) to emphasise the presence, or absence, of the glow. The result is a very noisy image showing that the glow is still there, but very, very faint. Note: the Volcanocam stopped transmitting images last night at 03:20am, so the movie only runs from sunset until that time.
Flash movie - showing only the glow (size 212 kB)

Night of 03/04 January - despite the clear weather and excellent views of the mountain, the glow was quite feeble for most of the night, apart from one bright burst around 20:20. Whether this is related to the general decrease in seismicity and activity on the mountain is not known. The movies were processed to reduce noise and de-blurred to improve the view.
Flash movie - showing only the glow (size 180 kB)
Flash movie - showing the glow superimposed on a background image of the mountain for reference (size 222 kB)

Night of 02/03 January - the glow flickered away for the entire night. The movie was processed to reduce noise and de-blurred to improve the view.
Flash movie - showing the glow superimposed on a background image of the mountain for reference (size 226 kB)

Night of 01/02 January - a quite feeble glow was visible from just after 1:00am and infrequently until sunrise. The movies were processed to reduce noise and de-blurred to improve the view.
Flash movie - showing only the glow (size 116 kB)
Flash movie - showing the glow superimposed on a background image of the mountain for reference (size 224 kB)