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Latest Earthquakes

earthquake.usgs.gov

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Re: Latest Earthquakes

#2

Post by version_five »

I liked the previous title about the Monster of the Cascadian Basin. I looked it up (found nothing) but came across this on the cascadian subduction zone:

https://pnsn.org/outreach/earthquakesources/csz

This is what's responsible for "megathrust" earthquakes on the west coast every 400-600 years. It seems we're early for one of those, so this is probably not that. I'd love to see more info on the significance, if any, of this movement.

Re: Latest Earthquakes

#3

Post by DyslexicAtheist »

version_five wrote: post #2

I liked the previous title about the Monster of the Cascadian Basin. I looked it up (found nothing) but came across this on the cascadian subduction zone: https://pnsn.org/outreach/earthquakesources/csz This is what's responsible for "megathrust" earthquakes on the west coast every 400-600 years. It seems we're early for one of those, so this is probably not that. I'd love to see more info on the significance, if any…

there is a great article on this in the new yorker that has been discussed here a few times. Won some awards for its writing too: https://www.newyorker.com/magazine/2015/07/20/the-really-big...

Re: Latest Earthquakes

#5

Post by 1shooner »

DyslexicAtheist wrote: post #3
version_five wrote: post #2

I liked the previous title about the Monster of the Cascadian Basin. I looked it up (found nothing) but came across this on the cascadian subduction zone: https://pnsn.org/outreach/earthquakesources/csz This is what's responsible for "megathrust" earthquakes on the west coast every 400-600 years. It seems we're early for one of those, so this is probably not that. I'd love to see more info on the significance, if any…

there is a great article on this in the new yorker that has been discussed here a few times. Won some awards for its writing too: https://www.newyorker.com/magazine/2015/07/20/the-really-big...

My favorite line from that article:

>Kenneth Murphy, who directs FEMA’s Region X, the division responsible for Oregon, Washington, Idaho, and Alaska, says, “Our operating assumption is that everything west of Interstate 5 will be toast.”

Re: Latest Earthquakes

#7

Post by Asparagirl »

DyslexicAtheist wrote: post #3
version_five wrote: post #2

I liked the previous title about the Monster of the Cascadian Basin. I looked it up (found nothing) but came across this on the cascadian subduction zone: https://pnsn.org/outreach/earthquakesources/csz This is what's responsible for "megathrust" earthquakes on the west coast every 400-600 years. It seems we're early for one of those, so this is probably not that. I'd love to see more info on the significance, if any…

there is a great article on this in the new yorker that has been discussed here a few times. Won some awards for its writing too: https://www.newyorker.com/magazine/2015/07/20/the-really-big...

Yes, that article is a classic, in the Venn diagram intersection of "hard science explained well" and "creative ways to get historical data" and "both local and federal government failure to plan or address known issues" and "we were warned" and "absolute nightmare fuel".

If/when the Cascadia superquake kicks off, everyone will be passing that link around, so you may as well read it now.

Re: Latest Earthquakes

#8

Post by Asparagirl »

1shooner wrote: post #5
DyslexicAtheist wrote: post #3

Earlier quoted context omitted.

there is a great article on this in the new yorker that has been discussed here a few times. Won some awards for its writing too: https://www.newyorker.com/magazine/2015/07/20/the-really-big...

My favorite line from that article: >Kenneth Murphy, who directs FEMA’s Region X, the division responsible for Oregon, Washington, Idaho, and Alaska, says, “Our operating assumption is that everything west of Interstate 5 will be toast.”

These too:

"Until 1974, the state of Oregon had no seismic code...seventy-five per cent of all structures in the state are not designed to withstand a major Cascadia quake..."

"The shaking from the Cascadia quake will set off landslides throughout the region—up to thirty thousand of them in Seattle alone...Fifteen per cent of Seattle is built on liquefiable land, including seventeen day-care centers and the homes of some thirty-four thousand five hundred people..."

"On the coast, those numbers go up. Whoever chooses or has no choice but to stay there will spend three to six months without electricity, one to three years without drinking water and sewage systems, and three or more years without hospitals..."

Re: Latest Earthquakes

#10

Post by divbzero »

jedberg wrote: post #6

If you do feel a quake, don't forget to report it to the USGS! They need your data.

Don’t the USGS have seismographs for detecting earthquakes? Does human reporting add resolution or other information to their data?
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