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Pacific Northwest Seismic Network @pnsn1.bsky.social · 4h

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

Map with a star marker for the magnitude 3 earthquake located 61.7 km S from Port Angeles, WA

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Pacific Northwest Seismic Network @pnsn1.bsky.social · 5d

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...

The sun is low on the horizon, shining over a mountain ridge where a few field technicians work on a seismic station. In the distance are further criss-crossing ridges.

Field engineers working on silver swing set seismic power box.

Field engineers attaching cable to silver seismic sensor.

Field engineer working on front of solar panels and one field engineer on ladder behind it. Forest in background.

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Pacific Northwest Seismic Network @pnsn1.bsky.social · 6d

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!

The University of Washington husky mascot, DUBS, sits on an office chair with a computer screen behind him reading "Get Ready to ShakeOut." A banner at the top encourages viewers to join the Great ShakeOut, and three graphics at the bottom explain how to Drop, Cover, and Hold On.

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Pacific Northwest Seismic Network @pnsn1.bsky.social · 12d

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.

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Pacific Northwest Seismic Network @pnsn1.bsky.social · 19d

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.

Silhouette of the upper body of one of the field staff looking off into a sunset.

Landscape showing several green mountain ranges, with Mt. Rainier in the far background. A rain shower descends in the distance over the mountains, and a rainbow peeks out from the clouds on the right.

Shot taken looking up from a trench dug into the dirt, the focus is on the roots coming out of the ground. In the background and blurred, one of the field staff stands over the trench with a power tool in his hand.

Four members of the field staff stand in front of the completed station, smiling. Behind them are rolling green hills and a slightly cloudy blue sky.

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Pacific Northwest Seismic Network @pnsn1.bsky.social · 23d

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

Map with a star marker for the magnitude 3.1 earthquake located 12.9 km SE from Port Townsend, WA

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Pacific Northwest Seismic Network @pnsn1.bsky.social · 26d

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.

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Pacific Northwest Seismic Network @pnsn1.bsky.social · Sep 5

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!

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Pacific Northwest Seismic Network @pnsn1.bsky.social · Aug 29

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!

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Pacific Northwest Seismic Network @pnsn1.bsky.social · Aug 22

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.

Three fieldwork technicians smile and pose in front of Mt. St. Helens in the background.

Several field technicians work on the site MNRL. Two are working on the ground in a trench, while the others are climbing on the metal frame of the site itself. It is very cloudy with dense fog in the background.

Four field technicians work on digging a trench on top of a hill. One uses a jackhammer while the others have shovels. It is a sunny day with some white clouds.

One field technician stands next to a trench dug into the ground with tubing running alongside it. He looks off into the distance at some thick clouds rolling over large forested hills.

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Pacific Northwest Seismic Network @pnsn1.bsky.social · Aug 21

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

Map with a star marker for the magnitude 3 earthquake located 2.4 km SE from Mount Vernon, WA

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Pacific Northwest Seismic Network @pnsn1.bsky.social · Aug 19

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

Map with a star marker for the magnitude 3.7 earthquake located 52.9 km N from Forks, WA

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Pacific Northwest Seismic Network @pnsn1.bsky.social · Aug 15

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.

A very cute calico cat lays behind the monitoring instrument, both nestled under the stairs in a basement.

A calico cat walks behind the NetQuakes monitoring instrument box. It is placed under the stairs in a basement.

A calico cat lies behind the Netquake monitoring instrument box under the stairs in a basement.

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Pacific Northwest Seismic Network @pnsn1.bsky.social · Aug 8

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.

Front facing view of the solar panels attached to the RADR site. Wildflowers and brush surround the panels. It is a clear blue day.

The solar panels of site RADR sit on a metal frame, pointing towards the right. Wildflowers and brush surround the site.

A large metal radio tower sits on top of a small grey building. A metal chainlink fence surrounds the building, and a white truck is parked outside of it. A man stands at the gate of the fence, turned away. A large brown dog stands at his feet.

Site RADR faces away, the backs of the solar panels are shown mounted to the metal frame. Behind the station sits a grey box with more solar panels facing away, this is the GPS station. Both stations are surrounded by brush and wildflowers, and there are rolling green hills in the distance.

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Pacific Northwest Seismic Network @pnsn1.bsky.social · Aug 6

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...

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Pacific Northwest Seismic Network @pnsn1.bsky.social · Aug 2

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

Map with a star marker for the magnitude 3 earthquake located 3.7 km SSE from Poulsbo, WA

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Pacific Northwest Seismic Network @pnsn1.bsky.social · Aug 1

Check out more outlets Director PNSN @haroldtobin.bsky.social spoke with to discuss insights from Russia’s quake with the links below:

@npr.org : www.npr.org/2025/07/30/n...

@nbcnews.com : www.nbcnews.com/science/scie...

@cbsnews.com: www.cbsnews.com/video/why-a-...

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Pacific Northwest Seismic Network @pnsn1.bsky.social · Aug 1

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...

A look at the science behind earthquakes and tsunamis - The World from PRX

A massive earthquake near Russia has triggered tsunami alerts across the Pacific and as far south as Chile. Host Marco Werman speaks with expert Harold Tobin at the University of Washington about the…

theworld.org

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Pacific Northwest Seismic Network @pnsn1.bsky.social · Aug 1

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 scenic hill with dark soil and a big sky and a truck parked next to two solar panels.

Two solar panels from behind on a dark soil hill. The sky is clear and there is a short antenna sticking out of the ground near by.

Two solar panels from the back surrounded by short shrubby grass. Behind them is a box covered in dirt with an antenna attached to it.

Two solar panels from the front on a shrubby hill, with a truck parked in the background.

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Reposted by Pacific Northwest Seismic Network

Washington Emergency Management Division @emd.wa.gov · Jul 30

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

Color graphic of the coastline of Washington State on the right with gray circles of seismic waves approaching from the left across the blue ocean. Black text on a yellow background reads “There is a tsunami watch for Washington State. Be prepared to take action. A tsunami may have been generated. Stay tuned to local emergency management for more information. More information at tsunami.gov.”

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Pacific Northwest Seismic Network @pnsn1.bsky.social · Jul 25

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

St. Andrews Rock (STAR) flyover

PNSN Field Techs 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 line edge that the helicopter circles. Flying above Mt Rainier really puts into perspective how big this volcano actually is!

youtu.be

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Pacific Northwest Seismic Network @pnsn1.bsky.social · Jul 19

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

Map with a star marker for the magnitude 3.5 earthquake located 32.6 km W from Penticton, BC

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Pacific Northwest Seismic Network @pnsn1.bsky.social · Jul 18

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!

Two deer standing next to a building in the forest looking at the camera while a person takes a photo of them on their phone.

Two PNSN field staff members working on wires attached to the site.

Two deer walking in the forest near a man dug hole.

A deer walking near the camera next the the field staff's parked trucks.

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Pacific Northwest Seismic Network @pnsn1.bsky.social · Jul 14

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

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Pacific Northwest Seismic Network @pnsn1.bsky.social · Jul 11

Happy #FieldWorkFriday! Two new seismic stations are now online: CRESC and CHUTE. @uocas students Karlee and Charlie installed the seismometers! The PNSN fosters undergrads' professional development by hiring summer field technicians at both our @uoregon and @uofwa offices.

A young PNSN student employee smiling and holding a seismometer outside in the field.

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