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Canada Earth

7.7 Magnitude Quake Hits British Columbia 65

Posted by samzenpus
from the whole-lotta-shaking-going-on dept.
schwit1 writes "A magnitude 7.7 earthquake hit Canada's Pacific coast province of British Columbia on Saturday night, the U.S. Geological Survey reported. The quake was centered 123 miles south-southwest of Prince Rupert at a depth of 6.2 miles. 'Earthquakes Canada said the quake in the Haida Gwaii region has been followed by numerous aftershocks as large as 4.6 and said a small tsunami has been recorded by a deep ocean pressure sensor. 'It was felt across much of north-central B.C., including Haida Gwaii, Prince Rupert, Quesnel, and Houston. There have been no reports of damage at this time,' the agency said in a statement on its website.'"
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7.7 Magnitude Quake Hits British Columbia

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  • by Kris Warkentin (15136) on Sunday October 28, 2012 @08:53AM (#41795745) Homepage

    Ah ha! Proof that seeding the ocean with iron causes earthquakes!

  • Of course, that didn't stop anyone from fearmongering and once more tens of thousands were evacuated needlessly - ensuring that hundreds or thousands won't follow evacuation orders when a real tsunami is coming. It is about time to stop using logarithmic scales for earthquakes. A 7.7 isn't anywhere near as bad as a 9.0 or a 9.2 that created the tsunamis of Japan iand Indonesia respectively.

    0.2 more on the scale is a doubling of the energy released by the earthquake and a doubling of the energy potentially c

    • by Freddybear (1805256) on Sunday October 28, 2012 @09:11AM (#41795825)
      A 6.2 is still a pretty damn big earthquake. Any quake above a 5.0 can be very destructive if it hits in a populated area where building codes aren't up to earthquake-resistant standards.
    • by Maow (620678) on Sunday October 28, 2012 @09:13AM (#41795839) Journal

      Of course, that didn't stop anyone from fearmongering and once more tens of thousands were evacuated needlessly - ensuring that hundreds or thousands won't follow evacuation orders when a real tsunami is coming.

      And they'd be idiots for ignoring a tsunami warning.

      It is about time to stop using logarithmic scales for earthquakes. A 7.7 isn't anywhere near as bad as a 9.0 or a 9.2 that created the tsunamis of Japan iand Indonesia respectively.

      It's not the logarithmic nature of the scale that's an issue, but the type of earthquake. A subduction quake causes more water displacement, hence greater tsunami, for a given magnitude. This was not a subduction quake, but a parallel slipping.

      if tell them to evacuate hundreds of times because of waves barely reaching the height of an average humans knee. (The 1m height reported is from peak to the lowest point - and the lowest point was 2 feet below normal sealevel.)

      I've told you eleventeen trillion times not to exaggerate. I don't believe there's been a tsunami warning since the Japan quake.

      The only sane course of action if you're somewhere in the pacific or indian ocean and hear a tsunami warning, is to tell people to go and fuck off. Stop crying wolf!

      That's an insanely stupid course of action. You're quite welcome to follow it however.

      • Re: (Score:3, Informative)

        by tp1024 (2409684)

        There have been 5 tsunami warnings of some description stemming from 5 different earthquakes in the pacific area within the last 30 days alone.

        http://ptwc.weather.gov/ [weather.gov]

        • by Maow (620678) on Sunday October 28, 2012 @09:28AM (#41795923) Journal

          There have been 5 tsunami warnings of some description stemming from 5 different earthquakes in the pacific area within the last 30 days alone.

          http://ptwc.weather.gov/ [weather.gov]

          Fair enough, but they have not been "fearmongering". Plus it's better to have warnings that don't pan out than no warnings at all.

          To quote one of the warnings, for a 7.1 magnitude from Queen Charlottes / Haida Gwai (emphasis added):

          TSUNAMI INFORMATION STATEMENT NUMBER 1
          NWS PACIFIC TSUNAMI WARNING CENTER EWA BEACH HI
          521 PM HST SAT OCT 27 2012

          TO - CIVIL DEFENSE IN THE STATE OF HAWAII

          SUBJECT - TSUNAMI INFORMATION STATEMENT

          THIS STATEMENT IS FOR INFORMATION ONLY. NO ACTION REQUIRED.

          AN EARTHQUAKE HAS OCCURRED WITH THESE PRELIMINARY PARAMETERS

                ORIGIN TIME - 0504 PM HST 27 OCT 2012
                COORDINATES - 52.9 NORTH 131.9 WEST
                LOCATION - QUEEN CHARLOTTE ISLANDS REGION
          MAGNITUDE - 7.1 MOMENT

          EVALUATION

          BASED ON ALL AVAILABLE DATA A DESTRUCTIVE PACIFIC-WIDE TSUNAMI IS
            NOT EXPECTED AND THERE IS NO TSUNAMI THREAT TO HAWAII.
          REPEAT. A
            DESTRUCTIVE PACIFIC-WIDE TSUNAMI IS NOT EXPECTED AND THERE IS NO
            TSUNAMI THREAT TO HAWAII.

          THIS WILL BE THE ONLY STATEMENT ISSUED FOR THIS EVENT UNLESS
          ADDITIONAL DATA ARE RECEIVED.

          • by qubezz (520511) on Sunday October 28, 2012 @11:00AM (#41796421)
            Look harder: I had to edit this down because of slashcode complaints of "junk characters"

            MEASUREMENTS OR REPORTS OF TSUNAMI WAVE ACTIVITY

            REPORTS OF 4FT OSCILLATIONS CONTINUING AT WAILOA HARBOR NEAR HILO
            ON THE BIG ISLAND

            HILO HAWAII 0.37M / 1.2FT 16MIN
            KAWAIHAE HAWAII 0.43M / 1.4FT 08MIN
            KAHULUI MAUI 0.76M / 2.5FT 12MIN
            HALEIWA HI 0.43M / 1.4FT 10MIN
            MAKAPU`U HI 0.41M / 1.3FT 08MIN
            CRESCENT CITY CA 0.42M / 1.4FT 24MIN
            ARENA COVE CA 0.32M / 1.1FT 06MIN

            4 feet is enough to turn your nap on the beach into a bad day.
            • by Maow (620678)

              Look harder:

              I had to edit this down because of slashcode complaints of "junk characters"

              MEASUREMENTS OR REPORTS OF TSUNAMI WAVE ACTIVITY

              REPORTS OF 4FT OSCILLATIONS CONTINUING AT WAILOA HARBOR NEAR HILO

              ON THE BIG ISLAND

              4 feet is enough to turn your nap on the beach into a bad day.

              I think you're reinforcing my point - don't ignore tsunami warnings, they're not fear mongering, and even for the 7.1 magnitude quake, no one at the warning centre was setting their hair on fire.

              Um, look harder?

          • The fearmongering comes from the media who don't understand anything more complex than a traffic ticket (or perhaps Brittney Spears on a good day). There was a tsunami alert for about a 100 mile stretch of coastline north and south of the quake which probably affected a thousand people at the very top end.

            I'm going to bet that there are newsrooms who have the direct feeds for earthquakes and tsunamis fed into a semi automatic story generator. Get a 7+ quake and it spits out a story to somebody who doesn

            • Oh, the media totally understand.

              They understand that they have to sensationalize EVERYTHING to maximize their ratings.

              Everything is putting you in imminent danger, so you must watch us 24/7/365, so we can warn you and tell you what you need to do to prepare yourself for todays danger.

              Something like this just helps the media, as it's perceived to actually be a more real threat [nature!] than other ones they come with.

              Other things to worry about:
              -ice falling off planes
              -children attacking school with guns/kni

              • by RockDoctor (15477)

                Everything is putting you in imminent danger, so you must watch us 24/7/365, so we can increase the rates we charge for each 30 second advertising slot that we sell.

                FTFY. It's important to remember what the driving forces are.

                It's (probably) not that that the editorial staff are manipulative fuck-tards ; it's that commercial broadcasting systems put manipulative fuck-tards into positions of power in broadcasting organisations.

          • by AmiMoJo (196126) *

            People only seem to take notice of the fact that there is an alert issued, not the actual content of it. I suppose part of that is due to the media wanting to hype it up and focus on the fact that something interesting happened, not that it isn't actually very interesting.

            It is highly irresponsible really. Japanese media will always deliver the important information when it comes to earthquakes and tsunami. You get alerts on TV and radio about 50cm tsunami quite regularly.

        • by djmurdoch (306849) on Sunday October 28, 2012 @09:33AM (#41795945)

          There's only one "warning" on that page, the one from last night's earthquake. The others are "information statements" and "information bulletins".

          Now, if you want to say that people should not treat every mention of the word "tsunami" as a warning to evacuate, you'd be right. But you said they should ignore the hundreds of "warnings", and there haven't been hundreds of "warnings". There's just been one in the last month. (I think there were others this year, but I can't find a list of all of them.)

        • by fatphil (181876)
          -1 uninformative and just downright misleading.

          Your "warnings" are information such as "BASED ON ALL AVAILABLE DATA A DESTRUCTIVE PACIFIC-WIDE TSUNAMI IS
            NOT EXPECTED"
    • You have a point: people have difficulty discerning the difference between a 7.0 and a 6.0 yet they are massively different in terms of threat to life and property but they don't appear much different.

      I disagree with you on the "crying wolf" portion. Six Italian scientists were recently convicted of manslaughter for not warning citizens of an impending earthquake and because they made it seem innocuous. Crying wolf may be the safe thing to do for safety (e.g. better safe than sorry) and to avoid going
    • I'm not sure what you're getting wound up about. I'm about 200 miles from the epicenter. We didn't get a tsunami warning but they did activate the reverse 911 system to tell people that there WASN'T a warning.

      The actual warning area was quite small. The problem (if there is one) is the brain dead 'reporting' that implied that there was some sort of major quake and wave going on. We have these sorts of 'alerts' a couple of times per year and although some people get all wound up, they're the same people

      • by tp1024 (2409684)

        I was talking about Hawaii.

        • by NoKaOi (1415755)

          I take it you don't live in Hawaii? I do. Was the media overhyping it? Of course. But that doesn't mean there wasn't a real danger. Based on looking at the buoy data and what the pacific tsunami warning center folks were saying, I figured it probably wouldn't be a big deal, but why take the risk? They actually didn't issue the warning until they had actual buoy data, and on the tv and radio they were interviewing the folks at the pacific tsunami warning center as much as possible. We actually did get

    • Of course, that didn't stop anyone from fearmongering and once more tens of thousands were evacuated needlessly - ensuring that hundreds or thousands won't follow evacuation orders when a real tsunami is coming.

      I take it you don't live in an area where tsunamis are a risk? Trust me, those of us who live in areas where such natural disasters are a risk take the warnings seriously every time.

      We're doing a disservice to people who may one day be affected by a real tsunami, if tell them to evacuate hun

    • I happen to live a it further down from the epicenter, on the Oregon Coast. The beach is 7 blocks from my front porch.

      No sirens, no reverse-911 calls, nada. I live right on an official evacuation route (my street), and no traffic at all on it.

      The only reason I even knew about it last night is from my mother-in-law, who recently moved the to the north WA coast, and is a bit of a drama queen at times... she calls up at 11:30pm local time to breathlessly warn us. Seems the local media up in SeaTac is kinda st

      • Driving out on the Sunset Highway a couple months back at about the halfway point from Hillsboro I passed a sign that said something about a "Tsunami Zone." The print was way too small for readability at high speed but I figured this was advertising the fact that I was entering one of Oregon's Tsunami Hazard Awareness Zones [ohs.org], nothing more; but I can well imagine a tourista getting the impression that tidal waves could inundate them tens of miles inland. They should make those signs oversized, like the For

  • by fustakrakich (1673220) on Sunday October 28, 2012 @09:16AM (#41795857) Journal

    God's reaction to that kid's arrest...

  • The northwest is overdue for a big earthquake... 8.5 or greater.

  • The west coast gets earthquakes and the east coast gets hurricanes and all middle America gets is drought.
  • It was caused by the construction of that secret RCMP underground command base for spying on everyone. It was their fault.

    • by Sulphur (1548251)

      It was caused by the construction of that secret RCMP underground command base for spying on everyone. It was their fault.

      You wil find Bush's Fault running through the epicenter.

  • by guttentag (313541) on Sunday October 28, 2012 @10:40AM (#41796293) Journal
    I've contacted Canadian Strategic Command. Fortunately, the Global Strategic Maple Syrup Reserve was on the other side of the country at the time, where it's supposed to be, rather than in some seismically unstable criminal warehouse. The rumors of an impending Maple Tsunami are greatly exaggerated.
  • After the precedent established in Italy, any seismologists who failed to predict this quake had better pack some bags.

  • Even Canadian earthquakes are nice and overly polite.
  • Canadian Police Want New Internet Surveillance Tools [slashdot.org] Posted by Soulskill on Sunday October 28, @05:20AM

    7.7 Magnitude Quake Hits British Columbia [slashdot.org]Posted by samzenpus on Sunday October 28, @05:40AM

    Sorry! Sorry! We didn't realize you were an EFF supporter, God! We'll retract the bill, you just...stop...the earthquakes...

  • In the lower mainland, I have not seen any reports of it being felt. Same with most of vancouver island. It was up by prince rupert and haidia gwaii. So for the most part, that area is sparsely populated. The closest major city would be prince rupert with a pop of 12,508.

    If this had occurred 500 km south, we would have had some major damage. Judging by this cbc article of eyewitness reports:
    http://www.cbc.ca/news/canada/british-columbia/story/2012/10/28/bc-earthquake-witnesses.html [www.cbc.ca]

    But there is actually anot

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