Universal Coordinated Time UTC – ZULU is a 24 hour clock. During an eruption, if the wind is from the east at 10,000 feet (outflow), the tephra will fall on Vancouver, Canada in about an hour. If the Kulshan Wind is from the west (inflow) the tephra will fall on Merritt, BC in about 40 minutes. There are extremes in preparedness, of course. As a basis of my work I use the 2015 Profile of Earthquake Risk in the District of North Vancouver by Earthquake Canada, wherein they state that there is 30% chance of a M7.3 in the middle of the Salish Sea, say between North Vancouver, Nanaimo and Victoria, in the next 50 years, that will bring down 839 buildings, just among the 80,000 residents in the District of North Vancouver. Hyperlinked where I can. Good morning, everyone. We begin to deal with BIG (MEGA) EARTHQUAKES at New Cascadia Dawn © ™ ® - Cascadia Rising - M9 to M10+, An Intelligent Grandfather's Guides © ™ ® next, Mount Baker Stratovolcano (background) © ™ ® / Kulshan Stratovolcano © ™ ®, Simon Fraser University (foreground) ~ Image by Stan G. Webb - In Retirement © ™ ®, An Intelligent Grandfather's Guides © ™ ® next, The Man From Minto © ™ ® - A Prospector Who Knows His Rocks And Stuff © ™ ® Learn more about the Cascadia Volcanic Arc © ™ ® (Part of Pacific Ring of Fire) Cascadia Volcanoes © ™ ® and the currently active Mount Meager Massif © ™ ®, part of the Cascadia Volcanic Arc © ™ ® [ash flow, debris flows, fumaroles and hot springs], just northwest of Pemberton and Whistler, Canada ~ My personal interest in the Mount Meager Massif © ™ ® is that the last volcanic vent blew north, into the Bridge River Valley [The Bridge River Valley Community Association (BRVCA), [formerly Bridge River Valley Economic Development Society], near my hometown. I am the Man From Minto © ™ ® - A Prospector Who Knows His Rocks and Stuff © ™ ® (Severe). Earthquake Drill 3rd Thursday in October 19, 2023 at 10:20 AM Pacific I grew up in small towns and in the North where the rule is share and share alike. So, I'm a Creative Commons type of guy. Copy and paste ANY OF MY MATERIAL anywhere you want. Hyperlinks to your own Social Media are at the bottom of each post. Creative Commons License
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Saturday, October 27, 2018

Tour of Sherman Crater, Mount Baker


D Tucker
Published on Jul 28, 2011
This video was taken July 6, 2010 by Dave Tucker. It shows the fumaroles just inside the west rim of Sherman Crater, at 2925 m (9600 feet) on Mount Baker Stratovolcano.  Mount Baker has the second-most thermally active crater in the Cascade Range after Mount Saint Helens.  The high wall of rock is a stack of lava flows erupted from the summit, 1000 feet above the fumaroles.  These lava flows are altered by sulphur-rich gas rising  from the magma beneath the volcano. Samples of gas were collected from the fumaroles, which vent water vapor (H2O), carbon dioxide (CO2), Hydrogen Sulfide (H2S), and other gases from within the volcano. People on the trip were volunteers organized by Mount Baker Volcano Research Center, Bellingham Washington. For more information, contact Mount Baker Volcano Research Center, University of Western Washington:
http://mbvrc.wwu.edu

From Wikipedia -  Mount Baker
The present-day cone of Mount Baker is relatively young; it is perhaps less than 100,000 years old.[5] The volcano sits atop a similar older volcanic cone called Black Buttes, which was active between 500,000 and 300,000 years ago.[25] Much of Mount Baker's earlier geological record eroded away during the last ice age (which culminated 15,000–20,000 years ago), by thick ice sheets that filled the valleys and surrounded the volcano. In the last 14,000 years, the area around the mountain has been largely ice-free, but the mountain itself remains heavily covered with snow and ice.[26]
Isolated ridges of lava and hydrothermally altered rock, especially in the area of Sherman Crater, are exposed between glaciers on the upper flanks of the volcano; the lower flanks are steep and heavily vegetated. Volcanic rocks of Mount Baker and Black Buttes rest on a foundation of non-volcanic rocks.[5]
Deposits recording the last 14,000 years at Mount Baker indicate that Mount Baker has not had highly explosive eruptions like those of other volcanoes in the Cascade Volcanic Arc, such as Mount St. Helens, Glacier Peak, or the Mount Meager massif, nor has it erupted frequently. During this period, four episodes of magmatic eruptiveactivity have been recently recognized.[27][28]
Magmatic eruptions have produced tephra, pyroclastic flows, and lava flows from summit vents and the Schriebers Meadow cinder cone. The most destructive and most frequent events at Mount Baker have been lahars or debris flows and debris avalanches; many, if not most, of these were not related to magmatic eruptions, but may have been induced by magma intrusion, steam eruptions, earthquakes, gravitational instability, or possibly even heavy rainfall.[26][27][29]
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