Magma rising in Mount St. Helens volcano, says USGS

No sign of impending eruption – Crater Glacier growing rapidly

“The magma reservoir beneath Mount St. Helens has been slowly re-pressurizing since 2008,” the U.S. Geological Survey said in a statement on April 30, 2014. “It is likely that re-pressurization is caused by (the) arrival of a small amount of additional magma 4 to 8 km (2.5 to 5 miles) beneath the surface.”

The USGS said this is to be expected with an active volcano and does not indicate “the volcano is likely to erupt anytime soon.”

When Mount St. Helens, a volcano in Washington State, erupted on May 18, 1980, it crushed entire forests and altered local river systems.

What this article doesn’t mention

What this article doesn’t mention, is that that eruption also melted the glaciers at the top of the mountain sending a deadly slurry of ice, mud, huge trees, bulldozers, and anything else in the way, in a mad rush down the Toutle River.

At the time of the 1980 eruption, 11 named glaciers radiated down the flanks of the volcano along with two small unnamed glaciers and numerous perennial snowfields, according to the USGS. The largest glaciers extended about 2.5 (1.5 mi) from the ice-filled summit crater. The cataclysmic landslide and eruption removed about 70% of the glacier mass.

A new glacier – now named Crater Glacier – immediately began forming on Mount St Helens.

Although news reports somehow fail to mention this, Crater Glacier grew very rapidly.

Ten years ago, in 2004, Crater Glacier already contained more ice than before the 1980 eruption.

Crater Glacier continues to grow and advance

Today, the glacier is still growing, albeit more slowly. “The thickness of the glacier continues to increase at the rate of 15 ft (5 m) per year,[3] ” according to the latest studies.

Not only is Crater Glacier growing, it is also advancing. “The glacier continues to advance at 3 ft (1 m) per day.[3][9]”
Thanks to Jack Hydrazine and Andrew Stranglen for these links

See also:

See also:

8 thoughts on “Magma rising in Mount St. Helens volcano, says USGS”

  1. pretty impressive advance speed,
    speed at which it could move with eruption behind it even more impressive!

  2. I think that “What this article doesn’t mention” is an undeniable proof and a strong argument to show that, those who said that glaciers are shrinking, they screwed up !

  3. Interesting,
    was talking to a corp. on site when the eruption happened on the 13 this month. Said it was quite an experience seeing the wall of ash heading toward him. Was very thankful that he was not killed.
    When I asked him if he looked at the seismographic data captured just 15 years after eruption he said no.
    The data showed as compared to earlier data before the eruption that the addition of plant decomposition at site increased the oil deposits by at least 5 fold.
    In retrospect, should be noted that the oil deposits we use today are due in fact not just fleshly exterminations of dinosaurs but in fact mostly due to any carbon based deposits left from volcanoes, floods caused buy ice ages, continental shifts, etc..
    Hum, as the earth expands during reversals causing ice ages and the little ones in between, does the carbon based residue fill the gaps from earth expansion resulting in an expanded earth not shrinking back to previous diameter after expansion?
    Could explain the slower orbital rotation of planet having to reset the yearly calender cycles?

    See ya

  4. Dad and I have been keeping watch and figured something is going on in there.

    We have watched weather systems come into Oregon and preform 90 degree turns right around Mt St Helens and Dad who studies a lot has said that what’s going on is that when there is all that energy going on in there it creates a higher pressure zone then the surrounding area.

    I didn’t say High Pressure as that signifies clear skies. What I mean is higher pressure then whatever else is in the area which means storms will take the easiest path which is to go between Mt St Helens and The Olympics which is exactly the path a lot of storms have taken.

    This year Seattle is having one of the top five wettest Springs on record and it’s pretty insane what’s going on with more systems to come but not quite as intense as has been.

    Except for last year the other tracks storms would take is the Southern Oregon/Northern California route.

    We usually get dry slotted or brushed. We have had many times where the National Weather Service would issue High Wind Advisories only for the storms to take one of those two open paths.

    I also think they need to monitor under the ocean too as there are TONS of volcanoes that can and DO explode underwater which will create *heat* that gets absorbed into the water.

    The Ocean temperatures for the Central Pacific have a lot of *red* on the maps since the Japan earthquake. I have been keeping track once a month at least of monthly SST charts and noticed a growing anomaly which got posted on another blog once.

  5. The other side of the Ring of Fire has been having lots of medium size quakes too which would put a lot of stress on our end.

    If we get a warm LONG ridging period I bet our fault line is going to pop.
    For several years we haven’t had a truly decent long West Coast ridging period in the summer due to a long term negative PDO pattern.

    The PDO for the first time since March has been gowing positive for the first time in many years.

    Our summer is going to be VERY interesting especially with the cold weather the Midwest is stuck with.

Comments are closed.