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Focal Mechanisms Explained: What are those “beach balls”? (Educational)
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- Опубликовано: 23 авг 2012
- 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.waterstridermusic.com)
"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
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!
Thats actually incredibly well ilustrated, thank you!!!
Thanks for the great video. The music got me hyped :D
Incredible!
Very very good!
Excellent explanation...sir plz make more animation videos on seismology
Merci beaucoup! trop cool
Perfect
hah, the first time i clear unterstood the watermelon graph, thanks so much
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The completely unnecessary music competes with your voice!
excellent explanation! just what i needed!
Thank-you for posting this! A very clear and concise explanation of "beach balls"!!
Very well explained, thank you!
Just perfectly explained. Thats what i needed.
Perfect explanation and great illustrations !
This video is awesome, thank you for making it!
I got it!!!!!!!!!!!! I finally got it!!!!!!!!!! this thing frustrated me in the lecture so much! now im cleared! thamks!
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 !
I have never understood focal mechanism until i found out this video, thank you!!
Thanks, very straightforward.
Lovely music and explanations!
Really Good explained !!
Very well explained!!
Fantastic job.
Very nice, thanks IRIS.
An excellent introduction, cheers for the animation.
Amazing Clip !!!! Really helps to understand !!!!
Nicely Explained
At last I understand graphically! Thank you so much!
thank you, excellent video the explanation is simple and the argument is well exposed!
I understand this at last thank you!!
Great explanation. Thanks man :))
very nice,
finally, this is understandable.
wonderful
Finally i got it. Thx
Thanks so much
What is the music that begins at 4:22- does anyone know?
Keep it simple....thank you
perfect, i understood.
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 RUclips, 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!!!!!!
Bluegrass music is nice and soothing.
잘배워가요 thank you
this is brilliant
Yea, cool!
cool :)
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 RUclips, but the music was lowered in the online version found here: www.iris.edu/hq/inclass/animation/focal_mechanisms_explained.
Jenda (animator)
wait what?
bah, my college told me that white area is for compresional tension
Good explanation, but the music is very annoying and very distracting.
My fault. I can't change volume in RUclips, 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)