RE: Must see graphical video of the seismic data compiled for the Japan Earthquake
February 18, 2012 at 11:56 am
(February 18, 2012 at 11:07 am)KichigaiNeko Wrote:(February 18, 2012 at 11:04 am)orogenicman Wrote:(February 18, 2012 at 10:56 am)KichigaiNeko Wrote: So what this indicates is that the fault line off Hokkaido has increased activity 200 fold?? What is the name of the fault? The activity seems to be between 0-50km deep... that is rather shallow isn't it??
And no I have next to no knowledge of geology or plate tectonics beyond high school.
The fault is the Miyagi megathrust, which is part of a very active subduction zone, one of the most active on the planet. Yes, the activity is between 0-50 km. But more importantly, it indicates that the entire breadth, width, and depth of that fault was involved in the rupture, and is still moving to this day. 0-50 km is shallow.
This is what I understood. Does this Miyagi fault/ subduction zone extend towards and throughout the Philippines?
This particular megathrust doesn't. There is a different one at the Phillipines.
Quote:What of the subduction zone off New Zealand... this has been ringing like a bell for the past 5 months that I am aware...nothing major though
The seismic issue at New Zealand is most closely associated with a major strike-slip (transform) fault across the south Island, though there is also volcanic activity. Here is the current seismic activity for the region around New Zealand:
![[Image: S_Pacific.gif]](https://images.weserv.nl/?url=earthquake.usgs.gov%2Fearthquakes%2Frecenteqsww%2FMaps%2Fregion%2FS_Pacific.gif)
All of the current activity is north of New Zealand, in the Tonga, Samoa, Fiji region.
Here is the historical seismicity for New Zealand:
![[Image: neic_b0001igm_s.jpg]](https://images.weserv.nl/?url=neic.usgs.gov%2Fneis%2Feq_depot%2F2011%2Feq_110221_b0001igm%2Fneic_b0001igm_s.jpg)
'The difference between a Miracle and a Fact is exactly the difference between a mermaid and seal. It could not be expressed better.'
-- Samuel "Mark Twain" Clemens
"I think that in the discussion of natural problems we ought to begin not with the scriptures, but with experiments, demonstrations, and observations".
- Galileo Galilei (1564-1642)
"In short, Meyer has shown that his first disastrous book was not a fluke: he is capable of going into any field in which he has no training or research experience and botching it just as badly as he did molecular biology. As I've written before, if you are a complete amateur and don't understand a subject, don't demonstrate the Dunning-Kruger effect by writing a book about it and proving your ignorance to everyone else! "
- Dr. Donald Prothero
-- Samuel "Mark Twain" Clemens
"I think that in the discussion of natural problems we ought to begin not with the scriptures, but with experiments, demonstrations, and observations".
- Galileo Galilei (1564-1642)
"In short, Meyer has shown that his first disastrous book was not a fluke: he is capable of going into any field in which he has no training or research experience and botching it just as badly as he did molecular biology. As I've written before, if you are a complete amateur and don't understand a subject, don't demonstrate the Dunning-Kruger effect by writing a book about it and proving your ignorance to everyone else! "
- Dr. Donald Prothero
