August 2005

Night of 30/31 August - The clouds departed and gave us a good view of the crater last night. There was a small rock fall from the lavadome at 21:40 and then a much larger rockfall and bright outburst at 23:50, which coincided with a M2.9 tremor. Below are two animations combining the images from last night -  the first shows the glow at the approximate brightness as recorded on the Volcanocam images, the second was further enhanced to emphasise the brightness of the glow.
Flash movie - showing just the glow  (size 203 kB)
Flash movie - showing enhanced images of the glow superimposed on a background image of the mountain for reference (only the area around the crater animated) (size 203 kB)

Night of 27/28 August - There were three bright outbursts of activity last night around 23:45, 00:25 and 03:40, which coincided  in time with tremors of magnitudes  M2.8, M2.4, and M2.8. Below are two animations combining the images from last night -  the first shows the glow at the approximate brightness as recorded on the Volcanocam images, the second was further enhanced to emphasise the brightness of the glow.
Flash movie - showing just the glow  (size 204 kB)
Flash movie - showing enhanced images of the glow superimposed on a background image of the mountain for reference (only the area around the crater animated) (size 223 kB)

Night of 26/27 August - There were no large outbursts and the activity level of the glow was fairly constant throughout the night.  Below are two animations combining the images from last night -  the first shows the glow at the approximate brightness as recorded on the Volcanocam images, the second was further enhanced to emphasise the brightness of the glow.
Flash movie - showing just the glow  (size 200 kB)
Flash movie - showing enhanced images of the glow superimposed on a background image of the mountain for reference (only the area around the crater animated) (size 215 kB)

Night of 25/26 August - Another clear night with a good view of the crater. The glow from the lavadome was intermittently visible from sunset until a large outburst occurred at 01:00 this morning, it then slowly decayed but remained reasonably bright for the rest of the night.  Below are two animations combining the images from last night -  the first shows the glow at the approximate brightness as recorded on the Volcanocam images, the second was further enhanced to emphasise the brightness of the glow.
Flash movie - showing just the glow  (size 237 kB)
Flash movie - showing enhanced images of the glow superimposed on a background image of the mountain for reference (only the area around the crater animated) (size 223 kB)

Night of 24/25 August - The weather was clear and the glow was visible for the entire night. There was a large and bright outburst at 21:26, after which the glow flickered away for the rest of the night.  Below are two animations combining the images from last night -  the first shows the glow at the approximate brightness as recorded on the Volcanocam images, the second was further enhanced to emphasise the brightness of the glow.
Flash movie - showing just the glow  (size 271 kB)
Flash movie - showing enhanced images of the glow superimposed on a background image of the mountain for reference (only the area around the crater animated) (size 214 kB)

Night of 23/24 August - The weather was clear and the glow was visible for the entire night. There were no major outbursts, but smaller events occurred at 23:21, 00:36 and 03:06. The events coincided with small tremors as shown on the webicorder trace from SHW. Below are two animations combining the images from last night -  the first shows the glow at the approximate brightness as recorded on the Volcanocam images, the second was further enhanced to emphasise the brightness of the glow.
Flash movie - showing just the glow  (size 242 kB)
Flash movie - showing enhanced images of the glow superimposed on a background image of the mountain for reference (only the area around the crater animated) (size 231 kB)

Night of 22/23 August - There was only one small outburst at 00:11 this morning, otherwise the level of activity was quite subdued. The clouds rolled in just after 03:00 this morning and blocked the view of the crater, just before a M3.0 tremor occurred. Unfortunately, there's no way of telling if this small quake triggered a bright outburst from the lavadome. Below are two animations combining the images from last night -  the first shows the glow at the approximate brightness as recorded on the Volcanocam images, the second was further enhanced to emphasise the brightness of the glow.
Flash movie - showing just the glow  (size 331 kB)
Flash movie - showing enhanced images of the glow superimposed on a background image of the mountain for reference (only the area around the crater animated) (size 188 kB)

Night of 21/22 August - The brightest outburst occurred last night at 20:56, just after the sun set. Clouds obscured the view of the crater intermittently during the night, but the glow was fairly constant and visible for most of the night. Below are two animations combining the images from last night -  the first shows the glow at the approximate brightness as recorded on the Volcanocam images, the second was further enhanced to emphasise the brightness of the glow.
Flash movie - showing just the glow  (size 484 kB)
Flash movie - showing enhanced images of the glow superimposed on a background image of the mountain for reference (only the area around the crater animated) (size 336 kB)

Night of 20/21 August - There were numerous small bursts of activity last night and a couple of larger outbursts around 21:30 and 02:00. Below are two animations combining the images from last night -  the first shows the glow at the approximate brightness as recorded on the Volcanocam images, the second was further enhanced to emphasise the brightness of the glow.
Flash movie - showing just the glow  (size 346 kB)
Flash movie - showing enhanced images of the glow superimposed on a background image of the mountain for reference (only the area around the crater animated) (size 317 kB)

Night of 19/20 August - While there weren't as many large bright outbursts as last night, it was still a good show. There was a significant outburst just after 23:40, which also appeared to generate a large plume of material. Below are two animations combining the images from last night -  the first shows the glow at the approximate brightness as recorded on the Volcanocam images, the second was further enhanced to emphasise the brightness of the glow.
Flash movie - showing just the glow  (size 329 kB)
Flash movie - showing enhanced images of the glow superimposed on a background image of the mountain for reference (only the area around the crater animated) (size 303 kB)

Night of 18/19 August - What a night! Numerous bright outbursts illuminated the crater and several plumes of dust/steam were released as well. The brightest outbursts occurred around 21.20, 22:51 and 01:20 and all coincided  with larger tremors clearly visible on the webicorder traces. Below are two animations combining the images from last night -  the first shows the glow at the approximate brightness as recorded on the Volcanocam images, the second was further enhanced to emphasise the brightness of the glow.
Flash movie - showing just the glow  (size 419 kB)
Flash movie - showing enhanced images of the glow superimposed on a background image of the mountain for reference (only the area around the crater animated) (size 360 kB)

Night of 16/17 August - The view of the crater was obscured by clouds for most of the night, apart from a brief window that appeared between approximately midnight and 02:00. There was a stronger tremor at 03:00 this morning, but unfortunately the clouds blocked the view. The animation below shows the glow at the approximate brightness as recorded on the Volcanocam images (and only for the 2 hours the glow was visible).
Flash movie - showing just the glow  (size 301 kB)

16 August - On the 12th August USGS photographer Elliot Endo captured a sequence of images of the lavadome following the sunset from the Johnston Ridge Observatory. Just for fun I have combined these images into a short animation - hopefully to give a sense of watching the incandescent glow appear as the night falls. After all, its interesting to see the details of that make up the diffuse brightness we see on the Volcanocam images each night (at least when the weather is clear).
Flash movie of the glow appearing (size 452 kB)

Night of 15/16 August - There were a couple of small outbursts last night, most notably at 21:36, 00:41 and 03:31. Below are two animations combining the images from last night - the first shows the glow at the approximate brightness as recorded on the Volcanocam images with the noise removed, the second shows the same images superimposed on a background image of the mountain.
Flash movie - showing just the glow  (size 301 kB)
Flash movie - showing images of the glow superimposed on a background image of the mountain for reference (only the area around the crater animated) (size 215 kB)

Night of 14/15 August - The Volcanocam came back on line yesterday morning at around 10:30 and has been working fine since. Last night there were a couple of bright outbursts, most notably at 00:21 and 03:51 this morning. There was also a larger tremor at 03:50 which is easily distinguished on the St Helens - West webicorder trace. Below are two animations combining the images from last night - the first shows the glow at the approximate brightness as recorded on the Volcanocam images with the noise removed, the second shows the same images superimposed on a background image of the mountain.
Flash movie - showing just the glow  (size 254 kB)
Flash movie - showing images of the glow superimposed on a background image of the mountain for reference (only the area around the crater animated) (size 216 kB)

Night of 11/12 August - There were no major outbursts of activity last night. In fact, the glow was hardly visible after removing the noise from the images, and was only revealed with further image enhancement. Below is just one animation from last nights images, it was processed to remove noise then further enhanced to maximise the brightness of the glow.
Flash movie - showing enhanced images of the glow superimposed on a background image of the mountain for reference (only the area around the crater animated) (size 476 kB)

Night of 10/11 August - There were a number of small outbursts in activity last night at 21:25, 00:35 & 04:40. Below are two animations combining the images from last night -  the first shows the glow at the approximate brightness as recorded on the Volcanocam images, the second was enhanced further to maximise the brightness of the glow.
Flash movie - showing just the glow  (size 242 kB)
Flash movie - showing enhanced images of the glow superimposed on a background image of the mountain for reference (only the area around the crater animated) (size 221 kB)

Night of 09/10 August - There were a number of small outbursts in activity last night at 22:35, 01:40 & 04:05. Below are two animations combining the images from last night -  the first shows the glow at the approximate brightness as recorded on the Volcanocam images, the second was enhanced further to maximise the brightness of the glow.
Flash movie - showing just the glow  (size 230 kB)
Flash movie - showing enhanced images of the glow superimposed on a background image of the mountain for reference (only the area around the crater animated) (size 233 kB)

Night of 08/09 August - There were a number of outbursts in activity last night at 22:10, 00:30, 02:34 & 03:25. There were no earthquakes detected by the automatic reporting system (as at 06:50am) but some of the outbursts correspond with tremors shown in the webicorder traces - most notably the bright outburst at 03:25 this morning. Below are two animations combining the images from last night - the first shows the glow at the approximate brightness as recorded on the Volcanocam images with the noise removed, the second shows the same images superimposed on a background image of the mountain.
Flash movie - showing just the glow  (size 248 kB)
Flash movie - showing images of the glow superimposed on a background image of the mountain for reference (only the area around the crater animated) (size 217 kB)

Night of 07/08 August - There were a number of outbursts in activity last night at 00:30 (small), 02:35 (large) & 03:05 (small). There were no earthquakes detected by the automatic reporting system (as at 07:00am). Below are two animations combining the images from last night - the first shows the glow at the approximate brightness as recorded on the Volcanocam images with the noise removed, the second shows the same images superimposed on a background image of the mountain.
Flash movie - showing just the glow  (size 248 kB)
Flash movie - showing images of the glow superimposed on a background image of the mountain for reference (only the area around the crater animated) (size 224 kB)

Night of 06/07 August - There were two further outbursts in activity last night at 00:30 (small) and 02:10 (large). There were no earthquakes detected by the automatic reporting system (as at 11:30am), but the webicorder trace from JUN station clearly shows a quake corresponding to the 02:10 event. Below are two animations combining the images from last night - the first shows the glow at the approximate brightness as recorded on the Volcanocam images with the noise removed, the second shows the same images superimposed on a background image of the mountain.
Flash movie - showing just the glow  (size 262 kB)
Flash movie - showing images of the glow superimposed on a background image of the mountain for reference (only the area around the crater animated) (size 226 kB)

Night of 05/06 August - There were two outbursts in activity last night at 22:35 (small) and 23:50 (larger). There were no earthquakes detected by the automatic reporting system (as at 11:00am), but the webicorder traces clearly show a couple of small quakes corresponding to these times. However, they were not large tremors and there were many others during the night that didn't correspond with any brightening of the glow. Below are two animations of last nights images - the first shows the glow at the approximate brightness as recorded on the Volcanocam images, the second was enhanced further to maximise the brightness of the glow.
Flash movie - showing just the glow  (size 255 kB)
Flash movie - showing enhanced images of the glow superimposed on a background image of the mountain for reference (only the area around the crater animated) (size 227 kB)

Night of 04/05 August - There were no outbursts during the night and the glow was faint, but relatively constant throughout the night. Below are two animations - the first shows the glow at the approximate brightness as recorded on the Volcanocam images, the second was enhanced further to maximise the brightness of the glow.
Flash movie - showing just the glows  (size 287 kB)
Flash movie - showing enhanced images of the glow superimposed on a background image of the mountain for reference (only the area around the crater animated) (size 225 kB)

Night of 03/04 August - There weather was clear, but the incandescent glow from the lavadome was very faint and there were no outbursts during the night. Below are two animations - the first shows the glow at the approximate brightness as recorded on the Volcanocam images, the second was enhanced further to maximise the brightness of the glow.
Flash movie - showing just the glow  (size 241 kB)
Flash movie - showing enhanced images of the glow superimposed on a background image of the mountain for reference (only the area around the crater animated) (size 218 kB)

Night of 02/03 August - It was a clear night and the glow from the lavadome was visible and fairly constant throughout the night. There were no larger tremors last night and no major outbursts of activity. Below are two animations combining the images from last night - the first shows the glow at the approximate brightness as recorded on the Volcanocam images with the noise removed, the second shows the same images superimposed on a background image of the mountain.
Flash movie - showing just the glow  (size 276 kB)
Flash movie - showing enhanced images of the glow superimposed on a background image of the mountain for reference (only the area around the crater animated) (size 237 kB)

Night of 01/02 August - The night started with a few clouds obscuring the view of the crater, but the weather later cleared to reveal the glow from the lavadome. There was one small outburst of activity around 02:15 this morning. Below are two animations combining the images from last night - the first shows the glow at the approximate brightness as recorded on the Volcanocam images with the noise removed, the second shows the same images superimposed on a background image of the mountain.
Flash movie - showing just the glow  (size 223 kB)
Flash movie - showing enhanced images of the glow superimposed on a background image of the mountain for reference (only the area around the crater animated) (size 203 kB)

Night of 31/01 August - The mountain was partially obscured by clouds in the early part of the evening and then early this morning before sunrise. However, there have been two M3.0 tremors in the last 24 hours, and the one that occurred at 00:15 was associated with a bright outburst from the lavadome. Below are two animations combining the images from last night - the first shows the glow at the approximate brightness as recorded on the Volcanocam images with the noise removed, the second shows the same images superimposed on a background image of the mountain.
Flash movie - showing just the glow  (size 195 kB)
Flash movie - showing enhanced images of the glow superimposed on a background image of the mountain for reference (only the area around the crater animated) (size 185 kB)