Alaska-Regional Tectonics and Earthquakes
Vložit
- čas přidán 25. 03. 2014
- www.iris.edu/earthquake for more animations.
Alaskan tectonics are dominated by Pacific-North American plate interaction. The megathrust boundary between the plates results in both the 4,000-km-long Aleutian Trench and in the arc of active volcanoes that lie subparallel to the trench. This animation discusses the range of tectonic activity from megathrust earthquakes to accretion of geologic terranes. Along the trench, the rate of convergence ranges from 5 cm/year on the east to 7.8 cm/year on the west. The angle of subduction also changes from shallow in the east to steep in the west. In the Gulf of Alaska region, the subduction of the Yakutat plateau complicates the area, and is responsible for mountain building in the Chumach-St. Elias Ranges and in the Denali Range. See also the M9.2 1964 Great Alaska Earthquake: www.youtube.com/watch?...
Written & directed by Robert F. Butler, University of Portland
Animation & graphics by Jenda Johnson, Earth Sciences Animated
Narrated by Katryn Wiese, City College of San Francisco
Consultants:
Robert C. Witter, USGS Alaska Science Center
Peter J. Haeussler, USGS Alaska Science Center
Michael West, Alaska Earthquake Center
Maps from Google Earth. Epicenters from UAF Alaska Earthquake Center.
Photos from UAF Geophysical Institute, Alaska Department of Natural Resources, & US Geological Survey.
Funded by the National Science Foundation - Věda a technologie
Today I said to my mind:
Hey, I want to know a little bit more about Alaskan tectonic region..
Awesome 😎
I learned lots more than I thought !!!
Thanks 👍
Great, well done and just right speed. I live in Cordova, Alaska.
very helpful with understanding formation of denali fault!
Thank you for sharing this very important info. Some of us here in Alaska do care!
I know im asking the wrong place but does any of you know of a way to log back into an Instagram account??
I was stupid forgot the account password. I would appreciate any tips you can give me!
@Trent Kamden Instablaster ;)
@Alessandro Jose Thanks so much for your reply. I found the site on google and Im waiting for the hacking stuff now.
I see it takes a while so I will reply here later when my account password hopefully is recovered.
@Alessandro Jose It worked and I now got access to my account again. I'm so happy:D
Thank you so much, you saved my account :D
@Trent Kamden happy to help :D
That was absolutely awesome 👏
This video is so good. Thank you.
Thank you kindly...
nice knowledge
We get earthquakes in The Yukon. I wonder how they are related. I’m fascinated that the Yakitat has slowly been subducting.
I do wonder why when Terranes are shown and explained that current ones like The Philippine Archipelago and New Zealand aren't used as examples.
EVENTS ARE MUCH MORE RECANT AND QUICKLY HAPPENING THEN THOUGHT!
>^..^<
Vary intersting and informative.......... Thank You..........
I was a young boy living in Waianae Oahu Hi n 1957 when an
Alaskan quake brought fish in your back yard one morning........
>^..^
UTubeGlennAR yo
Yeah daddy free fish
interesting
It would have been informative if you could have included the Canadian coast and effects of your research, thanks.
what are the dangers living on the KPB
ÑÑÑÑÑ
Why the dislikes?
Because they don't like this type of video and they think it will make CZcams not show this type to them(?) That does not work but they might think it does. Either that or some people do that to EVERY video just to mess with the owner of the channel.
No esferic plane -''ta"
Plane is planet...
This may sound stupid but anyone else than me thinking vulcanos are earths version of human pimples in the face? Mybee both sciences can learn something from eachothers? :)
That's stupid
@@hikerJohn first thing i thought lmao
School check
Tom Kelty brought me here. Wish i went to Zzyzx :(
John Farrell yo
Ñ
Tell USGS stop downgrading those earthquakes.
Check this animation on downgrading: czcams.com/video/XR8iToLxTxw/video.html
We don't use metric system here in USA...please use regular USA english.
Yes we do. Metric is the standard measuring system in U.S. professional institutions, mostly those that are science-oriented, like geology, astronomy, meteorology, engineering, medicine, military, etc. You are clearly not associated with such advanced fields of study and practice. Perhaps a little more education on your part would do some good. Although if you drink alcohol or own guns, you're also using the metric system when referring to the caliber of bullets for certain firearms or the milliliters (or liters) of booze you buy and consume. Speaking of of buying, the U.S. dollar itself is also decimalized to match metric standards.
Call it what it is ie The Alaska/British Columbia region for God's sake, so tired of Yanks ignoring the 2nd largest by land country to its north.
We "Yanks" do not ignore Canada. And British Columbia is an important component of the Pacific Northwest. But this animation isn't about British Columbia. It is about Alaska.