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PNSN
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PNSN
@PNSN1
Pacific Northwest Seismic Network (PNSN), monitoring earthquakes & volcanoes in WA and OR. Contact us: pnsn.org/contact-us.
Seattle, WA
pnsn.org
Joined November 2011
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  • PNSN reposted
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    KIRO 7
    @KIRO7Seattle
    3h
    Get loud! Pacific Northwest Seismic Network is tracking fan-made ‘earthquakes’ for FIFA World Cup kiro7.com/news/local/get…
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    2.9K
  • user avatar
    PNSN
    @PNSN1
    2h
    And here is the seismic recording of the second goal for the #USMNT in their match against Australia at Seattle Stadium today! #FIFAworldcup #worldcup2026 #SportsSeismology
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    20K
  • user avatar
    PNSN
    @PNSN1
    3h
    “And the building shakes in Seattle!” PNSN’s seismic stations captured the crowd response to both Alex Freeman’s goal and the VAR decision overturning the offside call. It’s #USMNT 2 to Australia 0 at half-time. #WorldCup2026 #FIFAWorldCup #SportsSeismology
    Graphic showing seismogram with two big spikes at "Goal" and "VAR decision."
    38K
  • user avatar
    PNSN
    @PNSN1
    4h
    FIRST GOAL USA! #USMNT is up 1-0 after an Australia own goal off Folarin Balogun's cross. Here's the seismogram of the Seattle Stadium crowd reaction on PNSN's HWK5 station. #WorldCup2026 #FIFAWorldCup #SportsSeismology
    Graphic showing seismogram recording with text USA SCORES! (Australia Own Goal) and "Vertical ground motion at station HWK5 at 12:10 PDT"
    8.7K
  • user avatar
    PNSN
    @PNSN1
    5h
    Happy #FieldworkFriday and Juneteenth! The #USAvAUS match starts in one hour. Learn more about the seismic stations our field crew installed in Seattle Stadium in this video, and watch the live seismogram starting at noon Pacific here: pnsn.org/experiment/202… #WorldCup #USMNT
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    1.7K
  • user avatar
    PNSN
    @PNSN1
    Jun 18
    Another view of Seattle Stadium station HWK3 recording the excitement of the crowd during the first goal in Monday's Belgium-Egypt match! Watch with us again tomorrow starting at noon PT, as the USMNT face Australia's Socceroos and we stream the data: pnsn.org/experiment/202…
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  • user avatar
    PNSN
    @PNSN1
    Jun 16
    PNSN Director Harold Tobin was quoted in a Washington Post story today about new research using paleoseismology data to model stress loads on the San Andreas and adjacent fault systems: washingtonpost.com/climate-enviro…
    But is 1,000 years of data enough to draw conclusions? 

Harold Tobin, the director of the Pacific Northwest Seismic Network and professor at the University of Washington, says yes.

“I think this 1,000-year simulation spans enough time to support a meaningful and useful conclusion,” Tobin, who was not involved in the recent study, said in an email. “[The] record is really short in North America, so paleoseismic evidence — geologic sleuthing — has to be used. The thousand-year paleoseismic record for the Southern California San Andreas and other faults that they use in this study (the “MRM”) is already a phenomenal achievement. ... [It’s] enough to capture quite a few earthquake recurrence cycles on the relevant segments of the San Andreas fault system.”

So when might the next big quake occur? Tobin said the complex nature of California’s fault systems makes for limited predictability.
    989
  • user avatar
    PNSN
    @PNSN1
    Jun 16
    But is 1,000 years of data enough to draw conclusions? 

Harold Tobin, the director of the Pacific Northwest Seismic Network and professor at the University of Washington, says yes.

“I think this 1,000-year simulation spans enough time to support a meaningful and useful conclusion,” Tobin, who was not involved in the recent study, said in an email. “[The] record is really short in North America, so paleoseismic evidence — geologic sleuthing — has to be used. The thousand-year paleoseismic record for the Southern California San Andreas and other faults that they use in this study (the “MRM”) is already a phenomenal achievement. ... [It’s] enough to capture quite a few earthquake recurrence cycles on the relevant segments of the San Andreas fault system.”

So when might the next big quake occur? Tobin said the complex nature of California’s fault systems makes for limited predictability.
    1.1K
  • user avatar
    PNSN
    @PNSN1
    Jun 15
    Watching Egypt's goal against Belgium in the PNSN SeismoLab today—we spotted the action on the live seismogram viewer before the broadcast caught up! #EgyptVsBelgium #EGYvsBEL #WorldCup2026 #FIFAWorldCup #SportsSeismology
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    1.5K
  • user avatar
    PNSN
    @PNSN1
    Jun 15
    Belgium gets the equalizer! Romelu Lukaku forces an Egypt own goal to tie the score at 1-1! #EgyptVsBelgium #EGYvsBEL #WorldCup2026 #FIFAWorldCup
    White seismogram showing the shaking caused by fans after Romelu Lukaku scores Belgium's first goal of the game. Seismogram is overlaid against a photo of the field, with the colors of Egypt and Belgium's flags in the background. The score is 1-1.
    13K
  • user avatar
    PNSN
    @PNSN1
    Jun 15
    Egypt scores first in Seattle! Emam Ashour puts Egypt up 1-0 against Belgium in the 19th minute. Here is the record from station HWK3 the moment that fans shook the stadium, and stay tuned for live seismo-updates. EgyptVsBelgium #EGYvsBEL #WorldCup2026 #FIFAWorldCup
    White seismogram showing the shaking caused by fans after Emam Ashour scores the first goal for Egypt in the World Cup game against Belgium. Seismogram is overlaid against a photo of the field, with the colors of Egypt and Belgium's flags in the background.
    2.5K
  • user avatar
    PNSN
    @PNSN1
    Jun 15
    Check out the live seismogram viewer for Belgium vs. Egypt on the PNSN website here: pnsn.org/experiment/202…
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    943
  • user avatar
    PNSN
    @PNSN1
    Jun 15
    We're in the PNSN SeismoLab getting ready for Belgium v. Egypt!
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    Seismologists set to track fan-triggered 'earthquakes' from Seattle Stadium
    From fox13seattle.com
    958

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