Log inOpen app
Log inOpen app
PNSN
5,839 posts
PNSN profile banner
@PNSN1

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
159 Following
25.2K Followers
RepliesRepliesRepostsRepostsMediaMedia
Get the full app experience
Unlock more features and see what people are talking about right now.
Open X
  • @PNSN1
    PNSN
    @PNSN1
    Oct 9
    Less than a week to go until the Great Washington ShakeOut earthquake drill! We're getting ready to Drop, Cover, and Hold On with Dubs at 10:15 AM on October 15. Learn more and sign up to join us at shakeout.org/washington/
    UW mascot Dubs (a husky) under a desk at the PNSN SeismoLab, with a smiling bearded man in a PNSN t-shirt next to him.
    Dubs and a group of people in PNSN shirts outside Suzzallo Library in front of a fence with a sign about seismic improvements.
    Dubs on a chair in front of a screen showing a Drop Cover Hold On graphic with a Titan strong motion accelerometer on the desk in front if him.
    A graphic reading "Get Ready to ShakeOut. October 15, 2026"
    5
    20
    1.9K
  • @PNSN1
    PNSN
    @PNSN1
    Oct 9
    Happy #FieldworkFriday! The PNSN field crew upgraded the battery bank at BURLY this week. BURLY contributes to @USGS_ShakeAlert earthquake early warning and serves as a repeater for seismic data transmitted by radio from EDM at Mt. St. Helens and WATCH near Mt. Rainier.
    A seismic station with a solar panel and radio transmitters on a mountain ridge in the foreground and a view of Mt Rainier in the distance under a blue sky.
    Another view of the station with a metal box under the solar panel and Mt St Helens visible in the distance.
    Another view of the solar panel with a PNSN field team member working on it.
    A man in a PNSN t shirt working inside the open metal box at the base of the station, with wiring and tools visible inside.
    1
    4
    34
    1.9K
  • @PNSN1
    PNSN
    @PNSN1
    Oct 2
    Happy #FieldworkFriday! Satellite comms, like the Starlink at PASS, can transmit data where cell coverage is poor. But satellite dishes are power hogs, so we often use a short radio hop from a solar-powered seismic site to an AC-powered site with a satellite dish @USGS_ShakeAlert
    Wide outdoor rural scene under bright blue sky with large white clouds.

Foreground left: side of small white shed. Beside it stands weather-monitoring equipment mounted on wooden posts: metal sensor box, cables, a tall pole, and rectangular solar panel at top.

Center: small leafy fruit tree in grassy field. Beyond it stretches open pasture, enclosed by thin wire fencing and wooden fence posts.

Background: dense evergreen trees line field. Low forested hills rise at far right. Sunlight casts long shadows across grass. Photo feels clear, peaceful, and outdoorsy.
    Wide outdoor pasture under cloudy sky.

Left: person wearing cap, plaid shirt, jeans, standing in grass and looking toward equipment.

Center: Underground Depart box with the seismic sensors

Right: solar-powered monitoring station mounted on stone-and-wood base. Two solar panels angle upward. Below them are weather sensors, pipes, wires, and small instruments.
    Open metal electrical control box mounted outdoors. Inside, many red, black, blue, green, and gray wires run between terminal blocks, connectors, power supplies, and other electrical components. Wires are bundled and coiled near top and right side. A horizontal grounding bar with several black cable clamps crosses middle. Bottom section contains additional terminal blocks and a larger gray control module. Sunlight creates a rainbow-like glare across image. Wooden support posts and outdoor grass visible around box.
    Tall metal pole stands beside wooden post, with rectangular solar panel mounted at top. Coiled conduit and electrical wiring run along pole, with small round instrument attached near middle. Aluminum ladder leans against structure in foreground. Beyond it, sunny pasture, rustic fence, evergreen forest, and wooded hills sit beneath bright blue sky with scattered white clouds.
    4
    24
    1.9K
  • @PNSN1
    PNSN
    @PNSN1
    Sep 29
    A M4.2 earthquake occurred this afternoon on the Kitsap Peninsula. Earthquakes of this size are a normal part of seismicity in the Puget Sound region, and we’re monitoring the area for additional activity. For more information visit the PNSN event page: pnsn.org/event/714111952
    1
    23
    115
    4.9K
  • @PNSN1
    PNSN
    @PNSN1
    Sep 29
    Yes, that was an earthquake on the Kitsap Peninsula! If you are in the area, you can contribute to citizen science by filling out a report here: zpr.io/UA6upKKXB4C3 to tell us if you felt the shaking or not.
    @PNSN1
    PNSN
    @PNSN1
    Sep 29
    PRELIM Earthquake: Magnitude 4.3, 18.9 km SSW from Bremerton, WA at 2026/09/29 14:05 PDT Learn more: pnsn.org/event/714111952 Did You Feel It? Submit a report: zpr.io/UA6upKKXB4C3
    Map with a star marker for the magnitude 4.267 earthquake located 18.9 km SSW from Bremerton, WA
    5
    29
    110
    8.1K
Edit with