Tuesday, July 26, 2005

is somethign happening on Mount St Helens?

What's going on down at the front of the crater on Mount St Helens? The images from the Volcanocam over the last couple of hours (e.g. Volcanocam archive, Brian McNoldy's time lapse sequence) have been showing steam or dust rising up from the front of the crater... a rockfall causing dust to blow in the wind? steam? ??? Anyone have any info on this?

7 Comments:

Anonymous Cathy said...

Isn't that the spot pointed out as an additional anomalous glow? I've been reviewing some old films from October and I see that the initial big blast came from behind the ridge where the more prominent anomalous glow appears. Lots of times I see steam/smoke/ash/whatever coming from behind that ridge. I'm tellin' ya, this thing gives me the WILLIES!

2005-07-26, 2:45 PM  
Anonymous Cathy said...

Also, check out the far left side of the image about mid way down. Now compare this to the images from earlier today. It looks to me like there is steam coming from there, too.
Oh, in case you didn't figure it out, I think that front area is also steam. Perhaps that's why CVO has guys out sampling the spring water.

2005-07-26, 3:05 PM  
Anonymous Annie said...

I've been noticing these mystery plumes (for lack of a better word) on the loweer slope for the last week or more, I'm really curious, and would love an official explanation.

2005-07-26, 5:01 PM  
Blogger Daz said...

After looking at the images a few times I think it was probably dust raised by a rock-slide in the crevice. Especially as there were numerous little dust clouds all over the crater today that seemed to result from small rock-slides.

2005-07-26, 7:52 PM  
Anonymous Anonymous said...

I've watched a lot of your cleaned up videos of the mountain and I have 3 questions....How come the camera isn't changed to see if it truly is a hot pixel? Is there some way to take heat sensitive video of the mystery spots? Has USGS looked into and taken reading where the spots show up so as to see if there is something else going on? Whatever it is, it is very cool!!!!

2005-07-27, 3:32 AM  
Anonymous cavegrrl said...

i believe other glowspots are forming, please do not limit your videos to the two glows, many other interesting things are happening on the mountain now. there is a new glow front center and since the rim is venting there must be more.

2005-07-27, 9:05 AM  
Anonymous Cathy said...

Take a look at the volcanocam image in the archive for today at 11:05am PDT. Look near the top of the area where the first anomalous glow appeared. Please tell me what that is. In this particular image, it seems clear that the steam/smoke/ash/whatever is NOT coming from behind that part of the rim. In fact, it looks like it's coming from a vent near the summit of that part of the rim.

On another issue, did anyone see "Seconds from Disaster" on the Nat'l Geographic Channel last night? It clearly showed the results of the analysys that the USGS did post 5/18/80. It clearly shows that the 1980 eruption was lateral instead of the expected vertical. It also shows some lava channels that might have contributed to the bulge that eventually gave way. I'm not saying that the same thing is happening now; but what I am saying is that there might be many of these channels in other areas (read: anomalous glows and new vents) of MSH. Creepy!

2005-07-27, 12:21 PM  

Post a Comment

<< Home




Click Here