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Japan - 7.5 Earthquake (USGS) - Tsunami alert issued/now passed - January 1, 2024

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  • Japan - 7.5 Earthquake (USGS) - Tsunami alert issued/now passed - January 1, 2024

    Source: https://www.ctvnews.ca/world/japan-i...line-1.6706680


    Japan issues tsunami warnings after series of very strong earthquakes shook its western coastline
    Yuri Kageyama
    The Associated Press
    Updated Jan. 1, 2024 6:01 a.m. EST
    Published Jan. 1, 2024 5:56 a.m. EST

    TOKYO -

    Japan issued tsunami alerts and ordered evacuations following a series of earthquakes on Monday that started a fire and trapped people under rubble on the west coast of its main island.

    The Japan Meterological Agency reported more than a dozen quakes off the coast of Ishikawa and nearby prefectures shortly after 4 p.m., one of them with a preliminary magnitude of 7.6.

    The agency issued a major tsunami warning for Ishikawa and lower-level tsunami warnings or advisories for the rest of the western coast of the island of Honshu, as well as the northernmost of its main islands, Hokkaido.

    Japanese public broadcaster NHK TV(opens in a new tab) warned torrents of water could reach as high as 5 meters (16.5 feet) and urged people to flee to high land or the top of a nearby building as quickly as possible.

    NHK said the tsunami waves could keep returning, and warnings were continuing to be aired hours after the initial alert. Several aftershocks also rocked the region.​..

  • #2
    Japan: Local Tsunami Warning After 7.5 Mag Quake


    Credit Japan's Meteorological Agency


    #17,844

    While some of the more dramatic `video' being posted on Twitter/X purporting to show today's 7.5 earthquake and tsunami is - in fact, archival footage from the 2011 9.0 Tōhoku earthquake - western Japan has apparently seen significant damage and some tsunamis have been reported.

    Just as we saw last November with the premature (read: fake) eruption videos out of Iceland, false or misleading posts on social media are nothing new, but they are becoming more pervasive, and with the help of AI; more convincing. Caveat Visum

    The USGS Earthquake page shows a cluster of 17 medium to large earthquakes over the past couple of hours in the region (see map below), and there is the possibility of seeing another 7.5 or greater quake in the days ahead.






    It will take some time to get accurate damage reports. There is one (currently offline) nuclear power plant (Shika) on the peninsula near the epicenter, which is undergoing inspection for potential damage.

    The preliminary (translated) statement from Japan's Meteorological Agency reads:
    Detection time
    (time when the earthquake was first detected)
    January 1st 16:10
    Occurrence time
    (time when the earthquake occurred)
    January 1st around 16:10
    magnitude 7.6 (preliminary value)
    place of occurrence Noto region, Ishikawa prefecture (nearly 30km east-northeast of Wajima) Very shallow
    Anti-corruption agency Reverse fault type with pressure axis in northwest-southeast direction (Breaking news)
    seismic intensity [Maximum seismic intensity 7] Seismic intensity 7 was observed in Shika Town, Ishikawa Prefecture, and seismic intensity 6 upper to 1 was observed from Hokkaido to Kyushu region
    Seismic activity status
    as of 17:30 on the 1st
    Since 16:00, 19 earthquakes with a seismic intensity of 1 or higher have occurred (intensity 7: 1 time, seismic intensity 5 upper: 3 times, seismic intensity 5 lower: 1 time, seismic intensity 4: 8 times, seismic intensity 3: 6 times)
    Observation status of long-period earthquake motions Long-period ground motion class 4 observed in Noto, Ishikawa Prefecture
    Major tsunami warning Noto, Ishikawa Prefecture
    Tsunami warning Yamagata Prefecture Niigata Prefecture Kaminakagetsu Sado Toyama Prefecture Ishikawa Prefecture Kaga Fukui Prefecture Northern Hyogo Prefecture
    Tsunami warning Western Hokkaido Pacific Coast Northern Hokkaido Sea of ​​Japan Coast Southern Hokkaido Sea of ​​Japan Coast Aomori Prefecture Sea of ​​Japan Akita Prefecture Kyoto Prefecture Tottori Prefecture Shimane Prefecture Izumo/Iwami Oki Yamaguchi Prefecture Sea of ​​Japan Coast Fukuoka Prefecture Sea of ​​Japan Coast Northern Saga Prefecture Iki/Tsushima
    (Disaster prevention considerations)
    A large tsunami has been observed and there is a risk of severe damage. People in coastal areas or along rivers should immediately evacuate to a safe location such as higher ground or an evacuation building. Tsunamis strike repeatedly. Do not leave your safe area until the warning has been lifted.

    In areas where the shaking was strong, there is an increased risk of house collapses and landslides, so please pay close attention to future seismic activity and rainfall conditions, and take precautions such as not entering dangerous areas unless there are unavoidable circumstances. Please take care to ensure your safety.
    (Forecast of future seismic activity)
    In past cases, 10 to 20% of earthquakes of the same magnitude occurred after a major earthquake, so in areas with strong shaking, people should be careful about earthquakes with a maximum seismic intensity of about 7 for about a week after the earthquake. please. Especially over the next few days, large earthquakes are likely to occur. Additionally, seismic activity has continued in this area for over three years and is expected to continue for the foreseeable future, so please continue to be careful. The shaking of this earthquake was spread over a wider area than before.

    For the full text of the document, including figures and tables, please refer to "Full text of document" below.




    Over the years we've looked at the earthquake risk in Japan - and other countries (including the U.S.) many times. Like it or not, many of us live on shaky ground. While we await more definitive information, you may with to revisit:

    Credit Japan's Meteorological Agency #17,844 While some of the more dramatic `video' being posted on Twitter/X purporting to show today's 7....
    All medical discussions are for educational purposes. I am not a doctor, just a retired paramedic. Nothing I post should be construed as specific medical advice. If you have a medical problem, see your physician.

    Comment


    • #3
      Live updates: https://www.cnn.com/asia/live-news/j...-24/index.html

      5 min ago

      In pictures: Quake causes damaged buildings and cracks in roads


      A huge 7.5 earthquake hit Japan on Monday afternoon local time, triggering tsunami warnings, disrupting communications and power, slicing through highways and damaging buildings.

      The quake struck around 42 kilometers (26 miles) northeast of Anamizu in Ishikawa prefecture, triggering several aftershocks, according to the United States Geological Survey.

      Images from the country show collapsed buildings, cracks in roads and a fire in Wajima, Ishikawa prefecture.

      Thousands of households are affected by power outages, officials have said, and Japan Self-Defense Forces said they are on their way to support the Ishikawa prefecture.

      Comment


      • #4
        According to NOAA the Tsunami danger has now passed.

        Comment


        • #5
          ANNnewsCH

          Comment


        • #6
          Massive quake jolts Japan, residents rush to evacuate coast

          January 1, 2024 at 19:25 JST
          REUTERS
          ...

          NUCLEAR PLANTS

          Japan’s Nuclear Regulation Authority said no irregularities have been confirmed at nuclear power plants along the Sea of Japan, including five active reactors at Kansai Electric Power’s Ohi and Takahama plants in Fukui Prefecture.

          Hokuriku's Shika plant in Ishikawa, the closest nuclear power station to the quake’s epicenter, had already halted its two reactors before the quake for regular inspections and saw no impact from the quake, the agency said. ...

          A powerful earthquake struck central Japan on Jan. 1, triggering warnings for residents to evacuate some coastal areas, knocking out power to thousands of homes and disrupting flights and rail services to the affected region.


          Comment


        • #7
          Shika nuclear plant: Partial outside power failure continues, no safety risk

          Friday, Jan. 5, 7:31

          Hokuriku Electric Power Company says it cannot specify when it will be able to fully restore the outside power supply systems to a nuclear plant in central Japan. The Noto Peninsula earthquake on Monday caused a partial failure in the supply. The company says it poses no impact on safety.

          At the Shika nuclear plant in Ishikawa Prefecture, the quake damaged piping of two transformers to supply power from outside to the plant's two reactors. Oil for insulation and cooling leaked. As a result, some of the power supply systems became unavailable.

          The company initially reported about 3,500 liters of oil leaked from the transformer for the No.2 reactor. But it said on Friday it was actually 19,800 liters.

          Company officials said they have also confirmed about 100 liters of oil came out from the piping of another transformer for the No.2 reactor. They added that the transformer is not used for receiving outside power. ...



          Comment


          • #8
            Big quake shook parts of Shika nuke plant above safety estimates

            January 10, 2024 at 18:55 JST
            By KEITARO FUKUCHI/ Staff Writer

            The shaking of the idled Shika nuclear power plant in Ishikawa Prefecture during the New Year's Day earthquake slightly exceeded the estimated maximum levels, the Secretariat of the Nuclear Regulation Authority announced on Jan. 10. ...

            The No. 1 and No. 2 reactors at the Shika nuclear plant were taken offline long before the earthquake. The No. 2 reactor is currently under review for new regulatory standards before it can be restarted, while the operator has not yet applied for the review for the No. 1 reactor. ...

            In the Noto Peninsula earthquake on Jan. 1, the shaking slightly exceeded the estimated levels in some period bands. But important facilities such as reactor buildings and pressure vessels were not in the susceptible periods, the secretariat said.

            At the idle Kashiwazaki-Kariwa nuclear power plant in Niigata Prefecture, which is operated by Tokyo Electric Power Co., the shaking was below the estimates for all period bands. ...

            According to the authority, after the Jan. 1 earthquake, which recorded a maximum intensity of 7 on the Japanese seismic scale, monitoring posts were unable to take measurements at 18 locations, mainly 15 kilometers or more north of the Shika plant.

            Based on the results of the on-site checks and the later restoration of communications, the cause of the missing measurements is believed to be a communication malfunction. ...

            The shaking of the idled Shika nuclear power plant in Ishikawa Prefecture during the New Year's Day earthquake slightly exceeded the estimated maximum levels, the Secretariat of the Nuclear Regulation Authority announced on Jan. 10. 

            Comment


            • #9
              2024 Japan Quake & Tsunami Update 1.2.24

              January 3, 2024

              Editor, SimplyInfo.org

              Japan’s NRA reports that the Shiga Nuclear Power Plant “Cooling continues even though some external power sources are unavailable”.

              A transformer at unit 2 experienced an explosion and failure. The unit 1 reactor had a transformer failure due to an oil leak. Both units have other sources of external AC powerthat they are currently using. Water spilled from the spent fuel pool of unit 1 onto the floor due to the earthquake shaking. The pump that supplies cooling water temporarily stopped, and was restored by 4:49 p.m.

              ​The NRA is also reporting no damage identified at the
              Kashiwazaki-Kariwa nuclear plant. Units 2 and 7 did find some spent fuel pool water had spilled out of the pools. This plant recently received restart permission from the NRA but needs local permission before they could restart reactors.​ ...

              Fukushima Daiichi and Daini on the other side of Japan also felt the quake with a seismic intensity of 3. TEPCO didn’t report any damage but this shows how large of an area was impacted by the quake.​ ...

              This is an update with new information as of 1.2.24: Japan's NRA reports that the Shiga Nuclear Power Plant “Cooling continues even though some external p


              Comment


              • #10
                Tsunami floods 190 hectares after central Japan quake

                KYODO NEWS - 14 hours ago - 20:29​

                KANAZAWA,Japan - Tsunami waves generated by the powerful earthquake that jolted the Noto Peninsula and its vicinity in central Japan on New Year's Day swept across some 190 hectares of land in three municipalities, the government said Monday.

                The death toll from the quake disaster climbed to 222 as of Monday afternoon, two weeks after the magnitude-7.6 temblor, according to the Ishikawa prefectural government.

                The tsunami inflicted damage mostly in the northeastern part of the peninsula, including Suzu and Noto on the Sea of Japan coast, wrecking houses and port facilities, though the full extent of the destruction is yet to be assessed. ...

                Tsunami waves generated by the powerful earthquake that jolted the Noto Peninsula and its vicinity in central Japan on New Year's Day swept across some 190 hectares of land in three municipalities, the government says


                (note:190 hectares = 469.5 acres)

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