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Posts by Anna Perttu

Nice article about the quake off the coast of Japan and the subsequent advisory. 🧪

1 day ago 40 17 0 1

The Dynamite Disaster is one of the most nutso parts of the 1906 Quake. This article from the centennial describes it quite well.
www.sfgate.com/news/article...

2 days ago 42 15 5 0
A comet with a bluish head and long, thin tail against background stars.

A comet with a bluish head and long, thin tail against background stars.

Bartlomiej Grzywacz in Poland captured #Comet R3 PanSTARRS low above the horizon on Thursday. Thank you, Bartlomiej! ☄️🔭📸
buff.ly/ROtbCaj

Have you seen #Comet R3 PanSTARRS yet? See more pics of the comet and a finder chart:
buff.ly/0iBbMTv

5 days ago 97 24 0 1
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Contents | Science 167, 3918 © 2026 American Association for the Advancement of Science. All rights reserved. AAAS is a partner of HINARI, AGORA, OARE, CHORUS, CLOCKSS, CrossRef and COUNTER. Science ISSN 0036-8075.

And here is a link to the digital archive of this edition
www.science.org/toc/science/...

1 week ago 1 0 0 0
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Today in exploring my new office:

One of the original Apollo 11 @science.org mag copies! There are ads in the front and this one from JPL is my favorite.

1 week ago 11 3 1 1

9300m down in the sea.
‼️ 9300m ‼️
Crinoids!

1 week ago 20 6 2 0

I would hazard to say awesome! And will definitely have to put up with my shenanigan again.

1 week ago 0 0 0 0
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I would also like to note that living in Hawaii I once called the water department because a turkey was stuck inside the fence at one of their pump stations.

He had been there ALL NIGHT and I was worried.

1 week ago 2 0 0 0
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BUT it turns out it was in fact a type of BEE so now I feel justified in my actions. The one on the lower left.

1 week ago 1 0 1 0

I feel self consciousness about just how much of a white woman I am today.

I walked a bug down 3 flights of stairs because it couldn't figure out only the top of the window was open. Yes I looked for other windows...

Yes I asked someone to help me look for windows that would open

1 week ago 2 0 2 0

During my field work in Kenai area we were on a boat and like a cartoon EVERYONE was on one side looking at a whale and I was on the other side because PUFFINS

1 week ago 0 0 0 0
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a stuffed penguin is sitting on a wooden chair in a room . ALT: a stuffed penguin is sitting on a wooden chair in a room .

I am annoyed. I got sick conveniently on a 3 day weekend and I just rested ALL weekend. ALL. 3. DAYS. I was so good!

I am still sick. I have things to do! Let me be better now! Ugh.

2 weeks ago 0 0 0 0

Might be the greatest opening paragraph of anything ever.

3 weeks ago 14086 4056 128 149
Stack of black and white rectangular stickers with a black background and white text. The text says <20 Hz infrasound

Stack of black and white rectangular stickers with a black background and white text. The text says <20 Hz infrasound

#Infrasound stickers will be with me at #EGU26 and in my office at #ULB

3 weeks ago 0 0 0 0
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Massive Pyroclastic Flow Reaches the Base of Semeru Volcano (Mar 20, 2026)
Massive Pyroclastic Flow Reaches the Base of Semeru Volcano (Mar 20, 2026) YouTube video by afarTV

🌋 A large pyroclastic density current (PDC) was caught on camera on the 20th of March at #Semeru (Indonesia)

youtu.be/Hi1TUpzMSOA

4 weeks ago 38 17 3 5

I am of the opinion that while you cannot be sassy in your official reply to edits or comments... on your own copy you can sass as much as you want.

4 weeks ago 0 0 0 0
Mt rainier above Seattle with a ferry boat in the foreground

Mt rainier above Seattle with a ferry boat in the foreground

PNW being epic. Just about to head to Europe for the next adventure!

1 month ago 2 1 0 0
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[V1cam] Kīlauea volcano, Hawaii (west Halemaʻumaʻu crater) YouTube video by USGS

Turn the sound on! 🔊 The USGS V1 camera at Kilauea now has *audio* and tephra is falling on it right now - www.youtube.com/live/tk0tfYD...

1 month ago 23 16 2 2
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Verity Vox and the Curse of Foxfire Witch apprentice Verity Vox has never encountered a pro…

One of my longtime friends had his debut novel come out in 2025 and I am finally having time to read it. I have the most amazing friends! share.google/KuTxKFNHTh7J...

1 month ago 0 0 0 0
Photo of the volcanic disaster game with a mini graduation cap on the box

Photo of the volcanic disaster game with a mini graduation cap on the box

Best way to celebrate my defense is several rounds of my favorite volcano themed game with friends!

1 month ago 3 0 0 0

I defended and passed my PhD defense yesterday. I'm almost back, just an international move....

1 month ago 9 0 3 0

Like-Follow-Subscribe for more really dumb geology jokes

1 month ago 27 5 6 0
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YES

1 month ago 1 0 0 0
Newspaper article called Ominous Findings on Seattle Quake Risk in the Seattle times

Newspaper article called Ominous Findings on Seattle Quake Risk in the Seattle times

Image of the destruction of the Kingdom stadium in Seattle with the reference to the equivalent magnitude of 2.3

Image of the destruction of the Kingdom stadium in Seattle with the reference to the equivalent magnitude of 2.3

This ran on January 23, 2001. I also love how the destruction of the Kingdome 💔 was used as a magnitude reference.

1 month ago 0 0 0 0

Thought I would share another one from apparently my Nisqually Earthquake newspaper archive.

About a month earlier the Seattle Times ran a section on the earthquake risk in Seattle.

1 month ago 0 0 1 0

This quake also taught me about the dangers of bricks in earthquakes and lets face it started the Alaskan Way Viaduct saga. Which is one of the BEST stories to illustrate how hilarious getting anything done in Seattle can be.

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I was allowed to go on "crack" patrol to check the building. This was the second significant earthquake I remember from growing up in Seattle. The first one taught me about particle motion and this one taught me about local geology impacts on shake magnitude.

1 month ago 1 0 1 0
Nisqually Earthquake 25th Anniversary
Nisqually Earthquake 25th Anniversary YouTube video by KING 5 Seattle

25 years ago the Blanchet HS Basketball team was at State and we were given a late start. Walking into school I tripped going up the steps. I thought I was just tired. When I went in the front door the lights were swinging.
youtu.be/2FIS1myejCc?...

1 month ago 1 0 1 0
Design like a rosec made by a pendulum in sand by an earthquake

Design like a rosec made by a pendulum in sand by an earthquake

Newspaper clipping from March 14, 2001 about the earthquake rose in port Townsend

Newspaper clipping from March 14, 2001 about the earthquake rose in port Townsend

Going through papers at my parents house I found newspapers from the 2001 Nisqually earthquake. With my favorite being the article about the "earthquake rose"

1 month ago 8 3 1 1

I LOVE IT!

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