Friday, February 04, 2005

Another flash on the mountain last night

The glow illuminating the crater of Mount St Helens was faintly visible for most of the night. At 03:38 local time another bright flash eminated from the crater, which was most likely caused by another small rockfall/fracture of the lavadome. A new movie of the event is available...

1 Comments:

Anonymous Anonymous said...

thanks again for your hard work putting together these cleaned up photos and videos of the night time activity of Mt. Saint Helens, Darryl!

Today saw 3 significant sustained earthquake events in the crater at Mt. Saint Helens. The smallest happened around 7:20 this morning. The second happened between 11:20 and 11:30am this morning. The 3rd, and largest around 4:20 this afternoon. All 3 were above the usual steady earthquakes mag (.1 to mag 1.5), with the 3rd one being of truly decent size and length as well. The latest daytime photos from yesterday show multiple ash vents active, and their location indicative not of a landslide caused event like I believe happened on the 2nd of February, but rather a new extrusion of the magma higher, so new magma was exposed at the NW base of the new lava dome. This released gas and ash into the air right at the base, and is clear as the source for yesterday's frequent light steam and ash plumes.

Too bad it's so cloudy today, nothing to be seen up there. Visit my post at the Weather Channel's message board for up to date photos and analysis. You will find it under the National Parks Forum, in the Mt. Saint Helens National Volcanic Monument thread.

2005-02-04, 5:51 p.m.  

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