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+--- Thread: M8.1 quake Kermadec Islands: Tsunami watches (/showthread.php?tid=3174)
M8.1 quake Kermadec Islands: Tsunami watches - Island Chris - 03-04-2021
There was a M8.1 thrust quake just now north of New Zealand near Kermadec Islands. It generated a tsunami and I think there is a tsunami watch for Hawaii. It is an interesting sequence because it has a M7.4 foreshock 107 minutes ahead.
Plus there was a M7.3 6 hours before 900 km to the south, off of NE New Zealand.
Chris
https://earthquake.usgs.gov/earthquakes/eventpage/us7000dflf/executive
https://www.tsunami.gov/events/PHEB/2021/03/04/21063003/3/WEHW40/WEHW40.txt
RE: M8.1 quake Kermadec Islands: Tsunami watches - Skywise - 03-09-2021
(03-04-2021, 09:57 PM)Island Chris Wrote: There was a M8.1 thrust quake just now north of New Zealand near Kermadec Islands. It generated a tsunami and I think there is a tsunami watch for Hawaii. It is an interesting sequence because it has a M7.4 foreshock 107 minutes ahead.
Plus there was a M7.3 6 hours before 900 km to the south, off of NE New Zealand.
Chris
https://earthquake.usgs.gov/earthquakes/eventpage/us7000dflf/executive
https://www.tsunami.gov/events/PHEB/2021/03/04/21063003/3/WEHW40/WEHW40.txt
Chris. So good to hear from you. Sorry I just noticed your post. Been very busy of late. Lot's of overtime at work and personal stuff.
Yes. Quite an interesting set of events along the subduction zone there by New Zealand. Multiple large events. That subduction zone goes quite deep as I've visualized it in 3D. Which leads to the next thing...
Over the last year or so, especially when I was furloughed from work for two months, I made a very concerted effort to improve my C++ and OpenGL graphics skills. Hence, I started working on my 3D quake visualization program again. It's not ready for prime time yet, but it's already quite capable.
It's kinda like GoogleEarth in that you can move around the globe and tilt the view. Unlike GoogleEarth, you can go underground. Quake hypocenters are plotted so you can see their true location within the Earth's crust. Subduction zones look really interesting as you can see the subducting slab bend downward. You can really see just how deep they go.
The program is capable of importing and exporting data in several formats, with more to come.
Also, it can directly access and download data from the USGS servers, and save it to disk.
There's still of lot of feature I've yet to implement as I'm still working on getting the core graphics engine working the way I need it to in order to have those features.
Performance is already quite good. I have displayed the entire USGS data set of 3.98 million records and even at the highest graphics settings (that I have implemented) I still get 50 FPS on my RTX2060 gpu. At lowest settings I get over 400 FPS.
I've posted a video on YouTube of an earlier version.
Brian
RE: M8.1 quake Kermadec Islands: Tsunami watches - Island Chris - 03-15-2021
Hi Brian
pretty cool. I work with Craig Nicholson and he works with relocated quakes in 3D using Gocad, for the Southern California Earthquake Center Community fault model (SCEC CFM). I'll send him a link to see if he is interested in what you are doing, or if he has suggestions.
Chris
RE: M8.1 quake Kermadec Islands: Tsunami watches - Skywise - 03-16-2021
(03-15-2021, 11:45 PM)Island Chris Wrote: Hi Brian
pretty cool. I work with Craig Nicholson and he works with relocated quakes in 3D using Gocad, for the Southern California Earthquake Center Community fault model (SCEC CFM). I'll send him a link to see if he is interested in what you are doing, or if he has suggestions.
Chris
Sounds great. Ideas most welcome.
I would love some links to some relocated databases. One to see how they look, but also to be introduced to other file formats so I can make sure my program can work with them.
Brian