Earlier quoted context omitted.
Eh we know what a 9mm bullet looks like
Or 10mm if you’ve wrenched a car
People know what the bolt looks like, but the wrench is missing.
M8.2 earthquake near Perryville, Alaska
21–30 of 45 posts
Re: M8.2 earthquake near Perryville, Alaska
#22Earlier quoted context omitted.
The Tsunami was in Alaska, not Japan.
Here's the big Japanese tsunami that devastated Fukushima arriving in California. https://www.youtube.com/watch?v=jdMDCLwblkY
I only know this because I clicked on some more stuff after looking at that but the Fukushima tsunami caused a fair amount of damage in the Santa Cruz, CA harbor both to docks and boats. Apparently the waves can get magnified when they go into a narrow channel or harbor. Another thing I only learned today reading the comments of that video is that tsunami literally means harbor wave in Japanese.
Re: M8.2 earthquake near Perryville, Alaska
#23Earlier quoted context omitted.
There is old joke that if you use metric when announcing a 50mm tsunami, half of Americans will run for the hills. "~20cm" could mean half a foot or 20 hundred meters depending on how much you remember from highschool. Many agencies have policies on how and where metric should be used in public announcements.
Eh we know what a 9mm bullet looks like
[deleted]
Re: M8.2 earthquake near Perryville, Alaska
#24Earlier quoted context omitted.
There is old joke that if you use metric when announcing a 50mm tsunami, half of Americans will run for the hills. "~20cm" could mean half a foot or 20 hundred meters depending on how much you remember from highschool. Many agencies have policies on how and where metric should be used in public announcements.
Eh we know what a 9mm bullet looks like
It looks like .38SP!
Re: M8.2 earthquake near Perryville, Alaska
#25First worry is always a tsunami, but in this case it seems like it only generated a max of ~20cm: https://www.tsunami.gov/events/PAAQ/2021/07/29/qwzteb/7/WEAK...
The slip patch (where the two tectonic plates slip past each other) of the earthquake did not reach the sea floor, so it didn't generate a big tsunami [0]. If the purple colors in the finite fault map (indicating >2 m slip) reached the trench (the top of the first figure, or the red line in the second), then the earthquake would have displaced much more seawater.
These finite fault maps are made using automated processing of the seismic waves from seismographs around the globe. It's pretty amazing to me that the resolution is so good, from what are not that different than sound waves. These tend to be pretty accurate, not just precise, and are validated from additional studies using different datasets over the subsequent years.
[0]: https://earthquake.usgs.gov/earthquakes/eventpage/us6000f02w...
Re: M8.2 earthquake near Perryville, Alaska
#26Earlier quoted context omitted.
Yes, but how many of you reflect over the nomenclature? How many of you know the actual diameter of a "twenty-two" (even if spelled out as .22)? People don't often think about the meaning behind colloquialisms.
American public schools have been using metric for decades. Science classes in American public schools use metric exclusively since the 80s at least. When you meet an American who makes a big deal out of not knowing what a meter is, 9 times out of 10 they're putting on a performative patriotic display mean to get a rise out of you. That, or they're quite elderly. Incidentally, .22 LR is nominally but not actually 0.2…
With calibers there is a difference between american .22 and european .22. As I understand it, the american measurement is slightly larger as it includes a bit of the rifling groves whereas the European standard was only the bullet width. So the same bullet measures slightly larger on the american scale. Or I might have that backwards, one of the two is different.
https://www.rifleshootermag.com/editorial/comparing-american...
Re: M8.2 earthquake near Perryville, Alaska
#27Earlier quoted context omitted.
Could have made the olympic surfing competitions interesting (which they moved sooner because of the storm that passed by)
The Tsunami was in Alaska, not Japan.
Tsunamis from the 1964 Alaska earthquake (M9.2) killed 12 people in California and caused damage in Japan and Hawaii. Tsunamis can travel for a very long distance in open ocean.
Alaska is pretty close to Asia, especially if you look at the great circle distance.
Cargo planes from China, Korea, and Japan normally refuel in Anchorage, and before the extended range of modern passenger jets, most passenger planes also had a refueling stop there.
In 1983, KAL Flight 007, a Boeing 747 passenger airliner en route from New York to Seoul, was shot down by the Soviet Union after departing Anchorage and inadvertently entering Soviet airspace.
Re: M8.2 earthquake near Perryville, Alaska
#28First worry is always a tsunami, but in this case it seems like it only generated a max of ~20cm: https://www.tsunami.gov/events/PAAQ/2021/07/29/qwzteb/7/WEAK...
However, I wonder if this quake so up north would accelerate the breaking of icebergs.
There's no sea ice that far south at this time of year. Alaska is huge, yo.
Re: M8.2 earthquake near Perryville, Alaska
#29First worry is always a tsunami, but in this case it seems like it only generated a max of ~20cm: https://www.tsunami.gov/events/PAAQ/2021/07/29/qwzteb/7/WEAK...
There is old joke that if you use metric when announcing a 50mm tsunami, half of Americans will run for the hills. "~20cm" could mean half a foot or 20 hundred meters depending on how much you remember from highschool. Many agencies have policies on how and where metric should be used in public announcements.
Americans use metric units to measure the size of guns and drug hauls, I think they have at least a minimal understanding of the magnitude...
Re: M8.2 earthquake near Perryville, Alaska
#30If you were speaking of a solar power installation you would say, for example, a 300 MW installation -- honoring Watt.
Why, then, a M8.2 earthquake? Why not a 8.2 R earthquake to honor Richter?