Brian Perttu

Mt. Ruapehu seen from a passenger flight.

Ruapehu was fully out on the flight back to Palmy yesterday.

Gravestone of Jorge Luis Borges in Geneva

Pages of the short story The Library of Babel under a rock at Borges' grave.

Someone left some pages of The Library of Babel at Borges' grave.

Presenter at IAVCEI 2025 talking about infrasound from PDCs

@infrasound.bsky.social gave a great talk on PDC generated infrasound! I might be biased, but I think it was wonderful work ❤️ #IAVCEI2025 @iavcei.bsky.social

Then and now: a post-workshop survey It's been a little over two years since the inaugural "Lessons-Learned Community-Driven Workshop to Define Best Practices for Unoccupied Aerial Systems (UAS) use in Volcanology" at IAVCEI 2023. Techno...

forms.gle/TWLt2qq1XLZz... #IAVCEI2025 Fellow volcanologists, if you use drones (or even intend to), please take a minute and fill out this survey.

I had never realized the size of those before. Amazing.

Loved (biased) @pyrolithic.bsky.social talk on lahar fingerprinting and the convergent development of a tool and the use of cross correlation matrix visualization we use in seismology! #IAVCEI2025

Hey, that's me!

Then and now: a post-workshop survey It's been a little over two years since the inaugural "Lessons-Learned Community-Driven Workshop to Define Best Practices for Unoccupied Aerial Systems (UAS) use in Volcanology" at IAVCEI 2023. Techno...

We're looking for volcano researchers who use drones to fill out a short(ish) survey on typical field practices and use of UAS. We'll present some preliminary results at IAVCEI in Geneva @iavcei.bsky.social next month.

Survey here: forms.gle/TWLt2qq1XLZz...

Thank you!!!

Te Wai ā-moe, the acidic crater lake in Mt Ruapehu.

Sulfur slicks on the surface of Te Wai ā-moe crater lake

Te Wai ā-moe, the sleeping waters, is the crater lake at the summit of Mt. Ruapehu, surrounded by (much diminished) glaciers on two sides, and a ridge of rock and tephra on the other 1.9.

"This is what it must feel like to be a geophysicist"

Vivienne Westwood gold plated brass tiara adorned with cubic zirconia and aragonite clusters

The Vivienne Westwood exhibition at Te Papa is amazing from the design right down to the materials. Those are some gorgeous aragonite clusters.

LinkedIn email checking to see if I still want to receive notices on other PhD positions

LinkedIn: "Based on your position in the New Zealand Army, here are openings in the Singapore Armed Forces and the Royal Canadian Air Force"

Always love sharing this story.

Soon, the "efficiency bros" will target science/research they think isn't adding value. Truth is, we don't know the value until it’s revealed - often years later.

Another great example: radio astronomy research on tiny black holes led to Wi-Fi for billions of ppl!

Bali flights cancelled due to dangerous volcanic ash - BBC News Australian airlines say it is unsafe to fly after Mount Lewotobi Laki-laki spewed ash.

www.bbc.com/news/article...

Why's an astrophysicist riffing on Pre-Cambrian geology and geophysics without talking to a single geoscienist?

Quick skim shows a number of factual errors....

I can no longer make fun of @infrasound.bsky.social for mixing up onsen and Unzen. Up until last week I thought Ottolenghi was just a variant name for Oldoinyo Lengai that people used when talking about regional dishes

Mt Ruapehu's Crater Lake

Coming back into New Zealand I flew over the source of all my field studies, Mt Ruapehu's Crater Lake, Te Wai ā-moe
The goal is to get closer this summer

Jumping spider on hand

I'm finally reading Children of Time and enjoying it. I want to compare it to the Uplift books, but there's a much narrower focus and sense of urgency here.