[Rockhounds] Possible recharge starting at Mt. St. Helens

[Tim Fisher]

There was a minor eruption probably 10 years ago that pushed up a big chunk
of sticky magma that formed "the fin" on the north side if the crater. It
lasted a couple weeks but didn't really amount to anything. The volcano is
still very much alive. I believe it was preceded by hundreds of little
quakes. So I wouldn't be surprised if the quakes are a precursor to a
similar event.

Tim Fisher
nospam at orerockon.com



-----Original Message-----
From: Rockhounds <rockhounds-bounces at rockhounds.drizzle.com> On Behalf Of
Kreigh Tomaszewski
Sent: Wednesday, June 19, 2024 5:13 PM
To: Rockhounds at drizzle.com: A mailing list for rock and gem collectors
<rockhounds at rockhounds.drizzle.com>
Subject: [Rockhounds] Possible recharge starting at Mt. St. Helens

Over the past several months, small magnitude earthquakes have been located
at Mount St. Helens. The seismicity is similar to what was observed at this
volcano from July to December 2023. No significant changes have been
observed in other monitoring parameters and there is no change in alert
levels at this time. Mount St. Helens remains at normal, background levels
of activity. Small magnitude earthquakes located beneath Mount St. Helens at
depths well below sea level are generally thought to be associated with
pressurization of the magma transport system.

https://www.usgs.gov/observatories/cvo/news/mount-st-helens-seismicity-eleva
ted-within-range-background-levels-february
_______________________________________________
Rockhounds mailing list
Subscription Services:
http://rockhounds.drizzle.com/mailman/listinfo/rockhounds_rockhounds.drizzle
.com
List Usage Policy: http://Tomaszewski.net/Kreigh/Rockhounds/Rockhounds.shtml


-- 
This email has been checked for viruses by AVG antivirus software.
www.avg.com