Japan-Earthquakes & Tectonics (Educational)

Рет қаралды 45,147

7 жыл бұрын

Japan has more measurable earthquakes than any other country and has over 100 active volcanoes. These both result from Japan being wedged among four major tectonic plates. The tectonics are complicated, but in this animation we attempt to look at the basic mechanics of the region as we focus on two famous earthquakes: the 1995 Kobe (Great Hanshin) earthquake) and the 2011 Tohoku-Oki earthquake.
It is necessarily simplified to depict basic processes.
We appreciate that there are many published fault-displacement models derived from fitting different sets of observations (teleseismic waveforms, tsunami heights, GPS displacements, seafloor deformation, etc.).
There is considerable disagreement between those fault-displacement models. For a variety of reasons, the animation group decided to illustrate the fault-displacement model of Jiang and Simons, 2016, Journal of Geophysical research, 10.1002/2016JB013760.
Written & directed by Dr. Robert F. Butler, University of Portland
Animation & graphics by Jenda Johnson, Earth Sciences Animated
Narrated by Wendy Bohon, Informal Education Specialist, IRIS
Scientific review:
Dr. Hiroyuki Tsutsumi, Doshisha University (堤　浩之, 同志社大)
Dr. Chris Goldfinger, Oregon State University
Dr. Lori Dengler, Humboldt State University

Пікірлер: 31

@pi0meson 4 жыл бұрын

As a geotechnical engineer living in a seismically active zone, I found this presentation very interesting and informative. A nice balance between accessibility and technical content. Well done!

@nikhil1133 4 жыл бұрын

What is impressive is no matter what...Japan bounce back all time there attitude to get up from a fall is outstanding....love from 🇮🇳

@mr_yo_Japan 7 жыл бұрын

It is a wonderful commentary. Thank you.

@harryyajann 7 жыл бұрын

Great content, really enjoyed it! :) Just the city in 7.01s, it looks like the view from Victoria Peak HK.

@Artines999 3 жыл бұрын

♥.♥ Many thanks to every university and center that tries to solve the earthquake problem with their beautiful efforts.

@souptiktirtha8136 2 жыл бұрын

Excellent. Very precise! 💔

@LawatheMEid 7 жыл бұрын

Japan is a great nation. Thanks.

@wildearth3992 7 жыл бұрын

Thanks !!!

@Ellensburg44 7 жыл бұрын

Excellent is an understatement. Thank you!

@IRISEarthquakeScience 7 жыл бұрын

Thank you, Nick, it means a lot. Your videos are exemplary!!! (Watch Nick's geology videos here: kzfaq.info?search_query=nick+zentner+youtube

@LossyLossnitzer 7 жыл бұрын

Thank you, great explanation - Thank you for sharing

@hjtobin 7 жыл бұрын

This is an excellent video I will surely use in a Hazards course I am teaching this fall. I like it so much that I hate to nitpick, but I do have a comment that the info on the Tohoku maximum slip (at about time 7:30 to 7:50 in the video) doesn't match the consensus view of what happened during the earthquake. Specifically, numerous studies show that the peak slip was larger and much closer to the trench and probably didn't decrease much up-dip (I can provide some refs if you like; see many pubs by e.g. Kelin Wang for overview).

@IRISEarthquakeScience 7 жыл бұрын

Thank you for your compliments, and for your comments. We appreciate that there are many published fault-displacement models derived from fitting different sets of observations (teleseismic waveforms, tsunami heights, GPS displacements, seafloor deformation, etc.). There is considerable disagreement between those fault-displacement models. For a variety of reasons, the animation group decided to illustrate the fault-displacement model of Jiang and Simons, 2016, Journal of Geophysical research, 10.1002/2016JB013760.

@hjtobin 7 жыл бұрын

Fair enough, and thanks for the reply. The difference between the Jiang and Simons result shown here and that of Sun et al. (2017) will make a great teaching tool for debate when using this in classes. Once again, I think this is a very informative video; thanks for making it!

@lucknow369 7 жыл бұрын

Excellent. I will use this video in my course. Is there a transcript available for this video?

@IRISEarthquakeScience 7 жыл бұрын

The word file can be downloaded here: www.iris.edu/hq/inclass/animation/546

@BorisCheshlarov 4 жыл бұрын

100.000 earthquakes per year in Japan, wow, that's is a record !! 😮😱〽️🇯🇵

@zeff8820 2 жыл бұрын

Pls make a video about indonesia tectonic and earthquake, especially the sunda megathrust.

@fatimatouati4545 5 жыл бұрын

but in line C-C between philipinian plate and Eurasian plate not Pacific plate

@Amy-qb5yl 5 жыл бұрын

thank you for this video! it's very helpful for my A level exams :)

@MegaMikeylikes 5 жыл бұрын

Upwards of 30,000 lost and 6 communities still haven't been rebuilt. Its going to be 1 big bugger to get the west Coast of NA up to these types of building codes and towns moved inland.