7 ms·
8.2 magnitude earthquake off Russia with potential to generate a tsunami
- mattryanharris 13y ago...but will it?
- lysium 13y agoNo: http://wcatwc.arh.noaa.gov/events/PAAQ/2013/05/24/mnafyn/2/WEAK53/WEAK53.txt http://wcatwc.arh.noaa.gov/events/PAAQ/2013/05/24/mnafyn/2/W...
- FoeNyx 13y agoindeed, as this document indicates : "DUE TO THE DEPTH OF THE EARTHQUAKE NO TSUNAMI IS EXPECTED." The Depth of the subterranean earthquake is generally a major factor in Tsunami (The main factor being the displacement of the water mass above). The last two M9~ magnitude earthquakes causing deadly tsunamis (Indian Ocean 2004, Japan 2011) were only at a Depth of 30km (19mi). This one is very deep, at 619km (385mi) below the surface.
- lysium 13y agoHere's a map and more info: http://wcatwc.arh.noaa.gov/?p=PAAQ/2013/05/24/mnafyn/2/WEAK53 http://wcatwc.arh.noaa.gov/?p=PAAQ/2013/05/24/mnafyn/2/WEAK5... Currently (6:51 UTC), no warnings.
- jensnockert 13y agoUpdated with more information, there won't be a tsunami (probably) http://wcatwc.arh.noaa.gov/events/PAAQ/2013/05/24/mnafyn/2/WEAK53/WEAK53.txt http://wcatwc.arh.noaa.gov/events/PAAQ/2013/05/24/mnafyn/2/W...
- marquis 13y agoSupplementary data to your link in case of a change: historical tsunami travel times in hours: http://www.ngdc.noaa.gov/hazard/tsu_travel_time_events.shtml#Pacific http://www.ngdc.noaa.gov/hazard/tsu_travel_time_events.shtml... Most relevant: http://www.ngdc.noaa.gov/hazard/icons/1923_0203.jpg http://www.ngdc.noaa.gov/hazard/icons/1923_0203.jpg
- pjungwir 13y agoHow can a tsunami cross the Pacific in 10 hours? Isn't that as fast as an airliner? Of course I'm not questioning the maps, but isn't that shocking? How does it work?
- Le_SDT 13y agoSuch a wave travels at well over 800 kilometres per hour (500 mph) -quoted from wikipedia http://en.wikipedia.org/wiki/Tsunami http://en.wikipedia.org/wiki/Tsunami
- sp332 13y agoIt's not a wave that physically moves as a single mass of water across the ocean. It's a shockwave that propagates through the ocean.
- Thrymr 13y agoIt's not a shock wave, it's a shallow water wave (because the wavelength is much larger than the depth of the ocean). The speed depends on depth [v = sqrt(g*H)]; for typical deep Pacific (5000 m), that is ~220 m/s or 500 mph.
- Someone 13y agoI don't think there are waves that move "as a single mass of water across the ocean." or through any other medium. http://en.wikipedia.org/wiki/Waves http://en.wikipedia.org/wiki/Waves: "The term wave is often intuitively understood as referring to a transport of spatial disturbances that are generally not accompanied by a motion of the medium occupying this space as a whole," For an analogy with (not quite an explanation, as the mechanisms are a bit different) a tsunami's speed, think of what happens when you pluck a guitar string. The back end of the string starts moving up before you even release the string. So, say you lift a string at, say 1cm/s for .1 of a second. (Almost) at the end of that 0.1s, the start of the wave that will form has reached the other end of the string, moving at meters per second (the 'almost' is because the string will deform. Ultimately, relativity has something to say here, too, but that only matters when the resulting wave signal would move near the speed of light)
- cskau 13y agoNo tsunami warning for Japan as of writing: http://www3.nhk.or.jp/sokuho/tsunami/index.html http://www3.nhk.or.jp/sokuho/tsunami/index.html
- kbar13 13y agothe NOAA "discussion" section used to be a really interesting read, wonder where that went...
- thresh 13y agoBeing in Moscow, which is 6000+ km away from the epicentre of the earthquake, we still felt the tremors... Fascinating.
- huhtenberg 13y agoI find this very hard to believe.
- rammark 13y agoIt's possible because of the depth. http://rt.com/news/quake-asia-tsunami-warning-729 http://rt.com/news/quake-asia-tsunami-warning-729
- JoeAltmaier 13y agoSimilar situation involving meteorites: "I would sooner believe that two Yankee professors would lie than that stones would fall from heaven!" - Thomas Jefferson The point being, whether we believe it or not changes nothing. This person experienced it.
- huhtenberg 13y agoThat's just too smart of a point, I'm afraid I'm all smitten. Though a construction next door or a demolition few blocks down the road would've been a simpler explanation.
- JoeAltmaier 13y agoYeah, that was a little glib. My point was, testimony is what it is; pointless to guess at their situation. Perfectly fair to do statistics on reports, if found in sufficient numbers.
- Grue3 13y agoI am also in Moscow and I call bullshit on this.
- deleted 13y ago[deleted]
- toddsiegel 13y agoWe felt here in India, in Gurgaon, near Delhi.
- neilxdsouza 13y agoOff topic: I am in Gurgaon too!
- MarlonPro 13y agoit's just past midnight here in socal. I live in Long Beach, CA - few miles from the pacific ocean. I'm closely watching http://ptwc.weather.gov/ http://ptwc.weather.gov/ . No warning as of this writing.
- D4M14N 13y agoIs a depth of 385 miles normal? That would put it deep in the earths mantle wouldnt it?
- glurgh 13y agoIt's very deep - seems to have something to do with subduction, take a look at http://earthquake.usgs.gov/earthquakes/eventpage/usb000h4jh#summary http://earthquake.usgs.gov/earthquakes/eventpage/usb000h4jh#... and http://en.wikipedia.org/wiki/Wadati%E2%80%93Benioff_zone http://en.wikipedia.org/wiki/Wadati%E2%80%93Benioff_zone Looks like they can be felt very far but are less dangerous.
- nitrogen 13y agoI imagine NOAA and NWS bulletins are in all caps for compatibility with ancient systems, but I still have to wonder if they'll ever see a reason to start using lowercase letters.
- waterlesscloud 13y agoMy guess is it's for legibility on faxes, which go out over radio. But it does seem like there might come a day when that tech is completely obsoleted.
- mtgx 13y agoIs it crazy to think that there may be a pattern for all these strong earthquakes in the past few years since the Haiti one, and that they may be linked?
- InclinedPlane 13y agoDo you mean a pattern of earthquakes being more common in highly earthquake prone areas? Yeah, that's expected.
- deleted 13y ago[deleted]
- dasil003 13y agoCould it be that the Haiti one was the first earthquake you started paying attention to?
- marquis 13y agoIt's the Pacific Ring of Fire, which includes Haiti, Japan, Chile, New Zealand, Solomon Islands and Indonesia (list goes on) which have had deadly quakes in the last few years - http://en.wikipedia.org/wiki/Ring_of_Fire http://en.wikipedia.org/wiki/Ring_of_Fire *edit, not Haiti which has its own crazy deep-earth stuff going on in the area
- softbuilder 13y agoThe ring of fire doesn't seem to include Haiti: http://arstechnica.com/civis/viewtopic.php?f=26&t=36428 http://arstechnica.com/civis/viewtopic.php?f=26&t=36428 The Caribbean instead has it's own smaller "ring": http://www.csmonitor.com/World/Americas/2010/0121/Haiti-earthquake-Why-the-Caribbean-is-a-mini-ring-of-fire http://www.csmonitor.com/World/Americas/2010/0121/Haiti-eart...
- seanmcdirmid 13y agoI personally always get Haiti and Papua New Guinea confused in my head. I know they are very different, but for some reason I have to think for a few seconds when someone says Haiti.
- vsbuffalo 13y agoWe felt a small earthquake in Davis, CA earlier tonight. Active day for our earth! I quite like earthly events like this — they really make one realize how minuscule we are.
- salgernon 13y agoI was in mountain view for the '89 loma prieta quake. The walls of our tilt-up on easy street we're waving like flags, and the huge Costco shelves in the shipping room collapsed, shattering a workers arm. I know that this is nothing like the horrors that other people in quakes have faced, but for years afterwards my flesh would crawl when a large truck would pass by. Then I moved to Oakland just in time for the '91 firestorm...
- deleted 13y ago[deleted]
- slashedzero 13y agoOnly half of us felt it here in Sacramento, CA. It seriously just felt like someone slammed a door very hard.
- iSnow 13y agoWhy is this still all-caps - in 2013? It's not like there are any teletype lines left that cannot process lower case. Is this some kind of tradition or does NOAA still use EBCDIC mainframes?
- toddrew 13y agoThese messages are always in caps to send faster over slower systems. http://www.alternatewars.com/BBOW/Computing/Capital_Letters.htm http://www.alternatewars.com/BBOW/Computing/Capital_Letters.... I spent a decade as a communicator in the navy and radio teletype is still the primary method of communication at sea.
- tricolon 13y agoThat makes sense. However, I argue that the NOAA could serve their warnings on the web in all lowercase for the sake of readability. Then again, that could be a quick hack for someone.
- recuter 13y ago* { text-transform: lowercase; } If it bothers you so much. :)
- loungin 13y agoQuick hack, maybe. But someone getting the time to do so is another issue. And these are old systems, you want them to do the work so you can read a tsunami warning that happens how often?
- frankydp 13y agoThey deliver the information on a number of formatted pages. This is simply the source document.
- runjake 13y agoIt's more readable in all caps, which is why they and the military do it this way. If it were all lowercase thing like Is and ls and 1s would get confused.
- DelvarWorld 13y agommmmmmroooooooooooooooooooOOOOOOOOOOOOOOOOOOOOOOooooooooooowwww...
- deleted 13y ago[deleted]
- Roboprog 13y agoThere was a 6.5 magnitude aftershock, near the site of the 8.2, this morning as well. Also just under 400 miles deep.