Focal Mechanisms Explained: What are those “beach balls”? (Educational)
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- Опубліковано 7 вер 2024
- www.iris.edu/earthquake for more intro animations
Focal mechanisms are released after an earthquake to show what type of Earth movement produced the earthquake. These are typically shown using a so-called "beachball" diagram. They refer to the orientation of the fault plane that slipped and the slip vector, and are also called fault-plane solutions.
Directed by Robert Butler, geophysicist, University of Portland
Animation & graphics by Jenda Johnson, Earth Sciences Animated
Narration: Roger Groom, Mount Tabor Middle School, Portland OR
Dr. Geophysics character: Richard Blakely, geophysicist, U.S.G.S.
Music: "Constellation" by Water Strider (www.waterstride...)
"Diagonal Stride" by Fadin' by 9 (www.fadinby9.com) written & fiddled by Seth Moran, seismologist U.S.G.S.
Reviewed by Anna Courtier, James Madison University, Harrisonburg VA
For more Earth-science animations, visit www.iris.edu/earthquake
I think if I watch this 25 times I may get it. Well done, Butler, Johnson, Groom, and Blakley.
same
Thats actually incredibly well ilustrated, thank you!!!
I watched it for the first time and got it really well. Wow. Nicely illustrated.
I got it!!!!!!!!!!!! I finally got it!!!!!!!!!! this thing frustrated me in the lecture so much! now im cleared! thamks!
Great information and really helps build preliminary understanding of focal mechanisms, thank you so much! I really enjoyed watching this and it was extremely helpful for laymen!
I have never understood focal mechanism until i found out this video, thank you!!
Thanks for the great video. The music got me hyped :D
excellent explanation! just what i needed!
Thank-you for posting this! A very clear and concise explanation of "beach balls"!!
Hands down, by far the most effective video. I am just entering into field of hydraulic fracturing and and design and this video has provided me exactly what I was searching for !
Just perfectly explained. Thats what i needed.
Very well explained, thank you!
Thanks, very straightforward.
At last I understand graphically! Thank you so much!
Well explained - I might suggest lowering the volume of or not playing music, but that's just personal preference.
My fault. I can't change volume in UA-cam, but the music was lowered in the online version found here: www.iris.edu/hq/inclass/animation/focal_mechanisms_explained
Thanks for commenting. Jenda (animator)
I agree!!!!!!
This video is awesome, thank you for making it!
Lovely music and explanations!
Perfect explanation and great illustrations !
Nicely Explained
An excellent introduction, cheers for the animation.
Fantastic job.
thank you, excellent video the explanation is simple and the argument is well exposed!
Really Good explained !!
Amazing Clip !!!! Really helps to understand !!!!
Very well explained!!
Very nice, thanks IRIS.
Very very good!
Excellent explanation...sir plz make more animation videos on seismology
very nice,
finally, this is understandable.
Incredible!
I understand this at last thank you!!
Keep it simple....thank you
wonderful
Bluegrass music is nice and soothing.
Great explanation. Thanks man :))
Thanks so much
Finally i got it. Thx
Merci beaucoup! trop cool
What is the music that begins at 4:22- does anyone know?
Perfect
Nice explanation, thanks!
Music is weird though (a bit loud and distracting).
As mentioned in previous comments, my fault. I can't change volume in UA-cam, but the music was lowered in the online version found here: www.iris.edu/hq/inclass/animation/focal_mechanisms_explained.
Jenda (animator)
perfect, i understood.
잘배워가요 thank you
this is brilliant
Yea, cool!
cool :)
hah, the first time i clear unterstood the watermelon graph, thanks so much
wait what?
bah, my college told me that white area is for compresional tension
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Good explanation, but the music is very annoying and very distracting.
My fault. I can't change volume in UA-cam, but the music was lowered in the online version found here: www.iris.edu/hq/inclass/animation/focal_mechanisms_explained
Thanks for commenting. Jenda (animator)
The completely unnecessary music competes with your voice!