Anna Perttu

Anna Perttu

@infrasound.bsky.social

I listen to volcanoes with my eyes. Infrasound obsessed since '06 Infrasound, volcanoes, seismology https://orcid.org/0000-0003-3590-1549

403 Followers 153 Following 318 Posts Joined Aug 2023
1 day ago
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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...

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4 days ago
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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...

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5 days ago
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!

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6 days ago

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

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6 days ago

Like-Follow-Subscribe for more really dumb geology jokes

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6 days ago

YES

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1 week ago
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

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

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1 week ago

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.

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1 week ago

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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1 week ago

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.

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1 week ago
YouTube
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?...

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1 week ago
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

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"

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2 weeks ago

I LOVE IT!

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2 weeks ago

My defense is the first week in March. I have to say I have been enjoying having student discounts on my memberships again (and keep giggling that I have reset the ECR clock)

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2 weeks ago
YouTube
Datacenters Behaving Like Acoustic Weapons YouTube video by Benn Jordan

I have been enjoying @bennjordan.bsky.social videos on #infrasound noise and this new video is also worth watching. youtu.be/_bP80DEAbuo?...

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3 weeks ago
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I am at the High Desert Museum and love this new volcano exhibit!

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1 month ago

And forever thank you to @geophysichick.bsky.social for introducing me to infrasound.

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1 month ago

Then I went to Massey to try and answer another question. Can we tell the difference between the plume generated infrasound and other parts of the eruption like PDCs. That is obviously a huge question that I am still working on.

So thank you Augustine for erupting 20 years ago.

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1 month ago

In Singapore I started taking those tools I had learned and started to try and answer the questions that had come up with the study on Augustine. In Singapore I worked on the plume height question. How far could we push it and could it be operational? The answer? Way further than I thought!

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1 month ago

I went to UAF with a goal of learning to be a better signal processor knowing that a degree in infrasound wasn't really a thing at that point. I took a job at UH Manoa wanting to further my understanding of infrasound.

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1 month ago

In my senior year at WWU I did a research project with @geophysichick.bsky.social and was introduced to volcano infrasound. Many questions arose during that project that I have spent the last 20 years trying to answer. That project and eruption has shaped my career.

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1 month ago
The plume is oranges and purples over the silhouette of trees it was taken between about 1645 and 1700 on 13 January 2006 from Kokhanok on the SE side of Lake Iliamna, Image courtesy of Gerald Andrew.

Twenty years ago, an eruption occurred in Alaska that had a profound impact on my career: the 2006 eruption of Augustine Volcano. At the time, I was an undergraduate at WWU studying geology, with no long-term plans, taking things one quarter at a time.

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1 month ago

Just letting everyone know that I am based in the US for the next 2 months in PST time zone. I am available for talks, seminars, and trainings if anyone is interested.

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1 month ago
lava fountain with two peaks the right taller than the left with koa trees in the foreground

Had the pleasure of meeting several of the old time park guys out at the volcano yesterday along with my friends daughter!

Now back to work.

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2 months ago

I am home in Hilo and since I always miss activity I didn't prepare. Does anyone who anyone on island with some sound equipment with a known response? I wanted to get some audio frequency range records of a fountain. Thanks!

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2 months ago

Tomorrow I’ll be working on my personal DEI initiative for science literacy for local/Indigenous girls in Hawaii: I’m taking my niece to the beach.

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2 months ago

Me: Ok I am finally in the same place for more than 3 days and can get some work done.
My laptop: Would you like a blue screen? Yes lets do that.

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2 months ago

I mean think it all the people who could use it! Also make it dark so people with migraines can hide out waiting for meds to kick in.

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2 months ago

It's part of the process. I have accepted this.

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2 months ago

I mean my first response is always can we get a nap room?

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