Happy #FieldworkFriday! As we trudge through fall and approach winter the field team finds themselves fighting against the sunset. Add in the 1hr loss of light from Daylight Savings Time last weekend and we know we’re not the only folks working in the twilight hours.

Happy #fieldworkfriday and Happy Halloween! Still picking out a costume? Check out some suggestions modeled by our talented PNSN field staff. Maybe a soggy construction worker? A peak-obsessed helicopter pilot? A granola backcountry hiker?

PRELIM Earthquake: M3.4, 86.3 km W from Astoria, OR at 2025/10/29 07:01 PDT http://www.pnsn.org/event/62208971 Did You Feel It?: https://zpr.io/uWZ5EBETdKWP

Happy #FieldworkFriday! Last week was packed! But despite a full week of monitoring @Mariners.com games to the Great ShakeOut earthquake drill, our field team still headed out. These cows at PASS didn't know a thing about the Mariners or ShakeOut, but were glad we came for a visit.

PRELIM Earthquake: M3.1, 37.5 km N from Victoria, BC at 2025/10/21 05:30 PDT http://www.pnsn.org/event/62196992 Did You Feel It?: https://zpr.io/4tRirXXRwg4T

What's bigger than a Geno Suárez 2nd Inning Home Run to take a 1-0 lead? An 8th Inning GRAND SALAMI to put the @Mariners up 6-2! This visual comparison of both seismograms shows the moment's magnitude of Geno's Grand Slam was 3x bigger than his first homer. #seizethemoment @mlb

Live seismogram from station RIZZS of Geno's Grand Salami with synced audio from Rick Rizzs on the @seattlesports710 radio broadcast! The @mariners and PNSN named the station in @TMobilePark after the one and only Rick Rizzs because of the energy he brings to the broadcast. # SeizeTheMoment

Cal's HR was BIG... Geno's Grand Slam was even BIGGER! 30min seismogram from the end of Game 5. 🔱 Mariners Win!!! "The City is Shaking!" #SeizeTheMoment @Mariners @MLB @TMobilePark @FoxSports

Mariners Win!!! "The City is Shaking!" # SeizeTheMoment @Mariners @MLB @TMobilePark @FoxSports

Geno Suarez hits a Grand Slam to put the Mariners up 6-2 and seal Game 5 of the ALCS! "The City is Shaking!" #SeizeTheMoment

Cal Raleigh ties it up 2-2 with a BIG home run! # SeizeTheMoment @Mariners @TMobilePark @FoxSports

Geno Suarez HOME RUN! Mariners up 1-0! # SeizeTheMoment @Mariners @TMobilePark @FoxSports

Happy #FieldworkFriday! Our experiment at @TMobilePark has been awesome, but we really want to see the seismic record of an ALCS Game 5 WIN. One more time @Mariners Fans, BRING THE ENERGY! Follow along at mariners.pnsn.org #seizethemoment @mlb @foxsports

Never Forget #Believe #SeizeTheMoment

@PNSN is onsite at T-Mobile Park. Check out the seismogram from Naylor’s 2nd inning home run! LET’S GO @Mariners mariners.pnsn.org

PNSN is back at the ball park for game four of the ALCS! Root for the @mariners and watch our live seismogram streaming from T-Mobile Park. Here: mariners.pnsn.org #SeizeTheMoment

Did you DROP, COVER, and HOLD ON yet today? If not, don't worry - it's never too late to practice earthquake safety! Try doing your own drill at your home, office, or school and take part in the #GreatShakeOut alongside millions of others.

It's time! Where ever you are DROP, COVER, and HOLD ON. Take part with people all over the world in the Great ShakeOut and practice your earthquake safety!

Today at 10:16am is the Great Shakeout, and Dubs is ready to Drop, Cover, and Hold On! Practice your earthquake safety alongside Dubs and millions of others in the biggest earthquake drill in the world. For more information on the Great Shakeout, go here: www.shakeout.org/index.html

Julio Rodriguez HOME RUN! You don't need to be a scientist to see a BIG moment like that. Great start to game 3! # SeizeTheMoment @Mariners @TMobilePark @FoxSports

We’re back for more @Mariners fans! Bring the energy to @TMobilePark tonight! You can track follow along at mariners.pnsn.org to watch the live seismogram from station RIZZS recording from the 3rd base tunnel. #seizethemoment #ALCS @mlb @foxsports

Recent @Mariners games have been shaking things up enough for our seismometers to notice but those waves are all in good fun. It's a great reminder that real quakes can happen anytime. Join us tomorrow (10/16) for @ShakeOut and practice what to do when the ground really moves.

You feel that Seattle?! Check out that Polanco P-Wave! Polanco Game Winning Single, Crawford Scores, MARINERS WIN!! @Mariners are Toronto Bound! @Tmobilepark @FoxSports #SeisTheMoment #SeizeTheMoment

RIVAS RUMBLE! Single to Left brings in Polanco to tie up at 2-2! # SeizeTheMoment @Mariners @TMobilePark @FoxSports

Hey Mariners fans! We installed the Richter Rizzs seismic station at T-MobilePark yesterday. You can track the energy in the ballpark live at mariners.pnsn.org! Let's rock T-Mobile Park! #SeisTheMoment #SeizeTheMoment

Happy #FieldworkFriday Mariners fans! Cal Raleigh said he could feel the ground shaking in Game 2, so PNSN came to take a closer look! We installed a seismometer right here in T-Mobile Park to record seismic energy during game 5. Seattle, we want to feel this place rocking! #SeizeTheMoment

Dubs is ready to #ShakeOut... Are you? We’re just ONE WEEK away from the Great ShakeOut earthquake drill on October 16! Join Dubs in practicing Drop, Cover, and Hold On. Register your participation and explore all the ways you can boost awareness for this event at shakeout.org.

PRELIM Earthquake: M3, 61.7 km S from Port Angeles, WA at 2025/10/08 17:56 PDT http://www.pnsn.org/event/62191312 Did You Feel It?: https://zpr.io/yZSLb6cACnup

Happy #FieldworkFriday! In case you missed these stunning views of the BURLY install from a few weeks ago, take a look at a few more of the photos taken by UW Photographer Mark Stone. Check out the whole collection here: uwphotos.smugmug.com/UPhoto-Job-A...

Who’s ready to #ShakeOut!? @DubsUW sure is! The Great @ShakeOut earthquake drill is just 2 weeks away, on October 16. Every year, millions across the globe participate. When the ground starts shaking, the best way to protect yourself is simple: DAWG (Drop), COVER, and HOLD ON!

Happy #FieldworkFriday, and good morning from Mt. Olympus! The field team visited station OSD in Olympic National Park this week to get it back online. This remote site required a helicopter ride to get to, but the effort paid off with a successful visit and beautiful views.

Happy #FieldworkFriday! What a treat it is having a professional photographer around! UW photographer Mark Stone joined our field team to document the full install at site BURLY. The site is now up and running, and all photo credit and thanks go to Mark Stone and UW Photography.

PRELIM Earthquake: M3.1, 12.9 km SE from Port Townsend, WA at 2025/09/15 18:29 PDT http://www.pnsn.org/event/62189991 Did You Feel It?: https://zpr.io/ZT2M4acwvfvM

Happy #FieldworkFriday! At station TEHA this week we saw a great example of one type of the cultural noise that our stations record when a Chinook helicopter flew over as we were showing off our QuickShake web tool to school admins and reporters from the Tacoma News Tribune.

Happy #FieldworkFriday! Watch out - helicopter incoming! Last month, the field crew at MNRL employed the use of several helicopter trips to take heavy materials in and out at the remote site. With their help, field staff saved their backs hauling things in and were able to get some great shots!

Happy #FieldworkFriday! It takes a bit of determination sometimes to visit our sites - and it's not all just climbing mountains or riding in helicopters. The access gate for station REDMT is its own beast, shown clearly here by field engineer Nicholas. What a workout!

Happy #FieldworkFriday! Rain or shine, our field staff are on the job! They endured the whole breadth of weather the PNW has to offer while installing site MNRL earlier this month. The result of all this hard work was a beautiful new site ready to report back to us at the PNSN.

PRELIM Earthquake: M3, 2.4 km SE from Mount Vernon, WA at 2025/08/21 01:01 PDT http://www.pnsn.org/event/62174381 Did You Feel It?: https://zpr.io/MDQFxEMhGFDi

PRELIM Earthquake: M3.7, 52.9 km N from Forks, WA at 2025/08/18 19:17 PDT http://www.pnsn.org/event/62173216 Did You Feel It?: https://zpr.io/824MsaTgfmtz

Happy #FieldworkFriday! We didn't have to worry too much about this NetQuakes instrument, as apparently it had a cute calico guardian watching over! Many NetQuakes stations are in homes, living alongside both human & animal residents while they report data back to us at the PNSN.

Happy #FieldworkFriday! Staff recently went out to site RADR, where the wildflowers are blooming in their full summer glory. Some of that brush needed to be cleared, however, so field staff conquered that as well as worked on the radios.

Seismologists here at the PNSN have been keeping up with picking and analyzing the data from the Mt. Rainier earthquake swarm. Read more about it on our newly updated Seismo blog at: www.pnsn.org/blog/2025/07...

PRELIM Earthquake: M3, 3.7 km SSE from Poulsbo, WA at 2025/08/02 09:20 PDT http://www.pnsn.org/event/62164416 Did You Feel It?: https://zpr.io/uw4a5FUmgmGT

The M8.8 earthquake off Russia’s Kamchatka peninsula drew global interest in earthquake and tsunami hazards. Director @haroldtobin.bsky.social responded to numerous media inquiries, with a notable highlight from @prx.org . Listen now! theworld.org/segments/202...

Happy #FieldworkFriday! Station PRO, near Prosser, WA, was swept over by a brushfire this week! Thanks to smart vegetation management the site was totally spared from damage. It's a strong reminder of how proactive fire safety measures can prevent loss when the worst occurs.

A TSUNAMI WATCH is now in effect for Washington state. If you are on the coast, be prepared to take action & stay tuned for more instructions. This alert level will update once more is known. Find details here: tsunami.gov/events/PAAQ/... #TsunamiWatch #WaWX

Happy FieldworkFriday! We strapped a GoPro to the skids of a helicopter for a recon flyover of St. Andrews Rock (STAR). The station is hard to spot on the ridge that the helicopter circles. Flying above Mt Rainier really puts into perspective how big this volcano actually is! youtu.be/PJ242pHcBGU

NEW Earthquake: M3.5, 32.6 km W from Penticton, BC, 4km deep at 2025/07/19 04:38 PDT V3 http://www.pnsn.org/event/62146337 Did You Feel It?: https://zpr.io/55Y8HsNm4ZJW

Happy #FieldworkFriday! Oh deer! The team ran into a handful of deer while installing new site ODEER on the Olympic Peninsula. It is extremely important to respect our wildlife and keep interactions to a minimum, but that doesn’t stop curious critters from checking us out!

Position opening at the Pacific Northwest Seismic Network. For more information and to apply please visit bit.ly/4lHmP8M