Dr. Julian Lozos's Avatar

Dr. Julian Lozos

@seismogenic.bsky.social

Earthquake physicist in Los Angeles; uses computer models to study how faults behave and interact University of California graduate; Cal State faculty maker of things | fiddle, viola, Javanese gamelan | D&D | cats | ég er að læra íslensku he/him | aroace

6,172 Followers  |  2,153 Following  |  3,107 Posts  |  Joined: 26.04.2023
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Posts by Dr. Julian Lozos (@seismogenic.bsky.social)

Two calico cats laying on a beige carpet. In the back left, the shorthaired dilute one (Askja) is belly up with her front paws tucked (the belly is not a trap). In the front right, a the fluffy full-saturation one (Katla) is loafed to a degree where only one paw is even slightly visible.

Two calico cats laying on a beige carpet. In the back left, the shorthaired dilute one (Askja) is belly up with her front paws tucked (the belly is not a trap). In the front right, a the fluffy full-saturation one (Katla) is loafed to a degree where only one paw is even slightly visible.

Katla and Askja update:

04.03.2026 01:54 — 👍 38    🔁 2    💬 1    📌 0
Two calico cats laying on a beige carpet. In the back left, the shorthaired dilute one (Askja) is belly up with her front paws tucked (the belly is not a trap). In the front right, a the fluffy full-saturation one (Katla) is loafed to a degree where only one paw is even slightly visible.

Two calico cats laying on a beige carpet. In the back left, the shorthaired dilute one (Askja) is belly up with her front paws tucked (the belly is not a trap). In the front right, a the fluffy full-saturation one (Katla) is loafed to a degree where only one paw is even slightly visible.

Katla and Askja update:

04.03.2026 01:54 — 👍 38    🔁 2    💬 1    📌 0

(The Parkfield prediction experiment in the '80s was built around that 22-year interval, after all.)

03.03.2026 19:56 — 👍 1    🔁 0    💬 0    📌 0

The funniest possible time for the next Parkfield earthquake would be 28 September 2026 - 22 years to the day after the last one.

03.03.2026 19:56 — 👍 10    🔁 0    💬 1    📌 0

We're halfway through the semester and students are still asking if they can add my class?

03.03.2026 00:26 — 👍 9    🔁 0    💬 3    📌 0

Watts (1946), talking about fluid pressure conditions in the Ventura Basin.

28.02.2026 00:05 — 👍 1    🔁 0    💬 0    📌 0

Americans will use anything but the metric system, but American scientists still publish in metric. That's standardized now! (But this paper is from the 1960s.)

27.02.2026 22:10 — 👍 2    🔁 0    💬 1    📌 0

Currently reading a scientific paper that has measurements in feet instead of meters, and it's messing with me!

(It is an old paper, but still.)

27.02.2026 20:52 — 👍 11    🔁 1    💬 2    📌 0

Leonardo, Donatello, Raphael, Michelangelo

26.02.2026 20:34 — 👍 0    🔁 0    💬 0    📌 0

'

20.02.2026 09:35 — 👍 1    🔁 0    💬 0    📌 0

A thread for the 15-year anniversary of the 2011 Christchurch earthquake. I won’t have a chance to post it on the day, so I’m doing it a couple days early. Note that the work I’m posting was carried out by many brilliant people. 1/

20.02.2026 01:27 — 👍 34    🔁 17    💬 3    📌 1

You can see the buried waterways of Los Angeles-Orange County in www.arcgis.com/apps/mapview...
@awalkerinla.bsky.social

17.02.2026 18:15 — 👍 103    🔁 32    💬 7    📌 8
Poster for the 25 Years Since the Nisqually Earthquake Event, with a picture of damage to the city of Seattle in the background. It takes place at the Kelly Ethnic Cultural Theater, at 3930 Brooklyn Ave NE in Seattle, on Feb 24th at 6:30pm. Admission is free. There is a QR code on the right side linking to a registration page.

Poster for the 25 Years Since the Nisqually Earthquake Event, with a picture of damage to the city of Seattle in the background. It takes place at the Kelly Ethnic Cultural Theater, at 3930 Brooklyn Ave NE in Seattle, on Feb 24th at 6:30pm. Admission is free. There is a QR code on the right side linking to a registration page.

It's been 25 years since the Nisqually earthquake—are we ready for the next one? Join us at UW next week (Tuesday, Feb 24) for a conversation and Q&A with local experts about earthquake science, policy, & preparedness in the PNW. Register here to attend: www.eventbrite.com/e/25-years-s...

16.02.2026 18:02 — 👍 33    🔁 12    💬 0    📌 2
[V1cam] Kīlauea volcano, Hawaii (west Halemaʻumaʻu crater)
YouTube video by USGS [V1cam] Kīlauea volcano, Hawaii (west Halemaʻumaʻu crater)

Kīlauea is doing the thing again!
www.youtube.com/watch?v=tk0t...

16.02.2026 01:53 — 👍 51    🔁 15    💬 1    📌 1

I may be short, but I can still help you fight them.

15.02.2026 18:29 — 👍 5    🔁 0    💬 0    📌 0

Looks like it comes down to the question of whether it's just sand that eroded, or also the underlying structure. Given how rapidly things are changing, and how dangerous Reynisfjara is even on a normal day, I'm guessing nobody's been able to get a clear picture of what happened underwater yet.

13.02.2026 18:10 — 👍 2    🔁 1    💬 1    📌 0

The shelf that the beach was on is almost certainly made of the same basalt that is visible above the surface, which means it's susceptible to the same sort of weakening and collapse. Being underwater would only accelerate things!

13.02.2026 17:27 — 👍 1    🔁 1    💬 1    📌 0

The spaces between basalt columns are an easy spot for wind, water, and ice to work their way in. This widens the cracks, eventually to the point where columns can separate and fall over. It's normal to see smashed chunks of basalt below columns! (In this case, the ocean pulverized them into sand.)

13.02.2026 17:25 — 👍 1    🔁 1    💬 1    📌 0

Aaaa, sorry I'm only seeing this now! Have barely been on here for the past few days for being-at-a-conference reasons.

I can't speak to why the ocean is suddenly more aggressive there (though it always has been an intense spot), but the type of rock formation there is very susceptible to erosion.

13.02.2026 17:25 — 👍 1    🔁 1    💬 1    📌 0

Do they have all the peaks along the side of the train, or is each train named for a different one?

11.02.2026 02:02 — 👍 0    🔁 0    💬 0    📌 0

I really love how the Zoom chatbox is such an integral part of the Northern California Earthquake Hazards Workshop. It's not just a sidenote, it's central to the discussion format.

10.02.2026 19:58 — 👍 5    🔁 0    💬 0    📌 0

I give my students a quiz on the syllabus. All very straightforward questions about policies. And yet...

08.02.2026 01:16 — 👍 1    🔁 0    💬 0    📌 0

"Like it says in the syllabus..."

08.02.2026 00:14 — 👍 17    🔁 2    💬 2    📌 0
Post image

On February 7, 1784, after eight months of activity, the Laki eruption finally came to an end. From a system of 135 fissures and volcanic craters, an estimated 14 km³ of lava poured out, enough to cover the surrounding landscape beneath a100-meter thick lava layer...

07.02.2026 17:28 — 👍 34    🔁 10    💬 1    📌 2

Is this a real thing?!

06.02.2026 05:44 — 👍 1    🔁 0    💬 1    📌 0

I did. Does that make it worse? (I thought it was the normal thing to do?)

06.02.2026 05:40 — 👍 0    🔁 0    💬 1    📌 0

This is just from cutting it. Eating it was fine!

06.02.2026 04:24 — 👍 9    🔁 0    💬 1    📌 0

This was just from cutting it, not even from eating it!

06.02.2026 04:23 — 👍 2    🔁 0    💬 0    📌 0

The onion that I used in my dinner tonight was so powerful that I had to wash my face and do a sinus rinse to get it to stop burning.

06.02.2026 02:47 — 👍 7    🔁 0    💬 5    📌 1

Unbelievably boopable!

05.02.2026 21:00 — 👍 2    🔁 0    💬 1    📌 0