Dr. Julian Lozos
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seismogenic.bsky.social
Dr. Julian Lozos
@seismogenic.bsky.social
6K followers 2.1K following 2.9K posts
Earthquake physicist in Los Angeles; uses computer models to study how faults behave/interact
University of California graduate; Cal State faculty
cats | homebrewing | viola, bluegrass fiddle, Javanese gamelan | D&D | ég er að læra íslensku
he/him | aroace
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seismogenic.bsky.social
Katla is definitely curious about this object, but she does not yet understand the implications for what is to come...
A fluffy calico cat sitting on a beige carpet, looking at a cat-sized Icelandic-style sweater (in light blue, dark blue, and white) laying on the floor in front of her. I still need to block it before she gets to wear it. I also want to finish Askja's lopapeysa first.
November 13, 2025 at 6:41 AM
seismogenic.bsky.social
Looking through the Mt. Wilson webcams, and aurora Los Angeles extremely confirmed (for earlier this evening)!
(But these colors are not clearly there on the webcam now, so it might be over here, sadly.)
Screenshot from the Mt. Wilson north-facing color webcam, 8:46 PM local time. There are clouds at the top of this image and black mountains below, but in the middle, in a break in the clouds, bright red. The same shade of red as in all those other aurora pictures from tonight.
November 12, 2025 at 6:02 AM
seismogenic.bsky.social
Grading an assignment that was due on Halloween...
A screenshot of the online teaching platform VoiceThread. Most of the screen shows a Powerpoint slide with the text "TEAM 4 Why do you think earthquakes are still unpredictable? One comment required; feel free to discuss more." On the left side of the screen is a student giving a video response. He is wearing a horse mask (you know the one).
November 7, 2025 at 2:50 AM
seismogenic.bsky.social
!ALERT!
Today is Katla’s 6th birthday!
A fluffy calico cat in a loaf pose on top of some folded paper bags. Her long floofy tail sticks out at a right angle from the rest of her. A fluffy calico cat looking directly toward the camera. Her paws are almost completely engulfed by her chest floof.
October 31, 2025 at 9:06 PM
seismogenic.bsky.social
Bought more red ink.
A swatch of dark red (with orangey-brown undertones) fountain pen ink, with gold shimmer on top of the red. The ink is from Birmingham Pen Company, and it is called Lava Rock Twinkle. The ink bottle is behind the swatch card.
October 26, 2025 at 1:35 AM
seismogenic.bsky.social
!ATTENTION!
Askja is three years old today!
A shorthaired dilute calico cat sitting on a green mat, as viewed from above. She is looking up at the camera with wide green eyes and flared whiskers. A shorthaired dilute calico cat laying comfortably in a sunbeam. A shorthaired dilute calico cat booping her little pink nose on an outstretched finger.
October 21, 2025 at 6:46 PM
seismogenic.bsky.social
Allow me to show you one of Katla's cutest features: her ear spots.
The black of a fluffy calico cat's head. The markings are quite symmetrical, with a big central black patch that starts at the top of her head and extends down her neck, and with triangles of orange on the top of her head on either side of the black. Her ears are mostly white, but they both have two little orange spots on them near the base.
October 13, 2025 at 9:02 PM
seismogenic.bsky.social
Hjálpandi.
A shorthaired dilute calico cat laying in a person's lap with her ears slightly back. To the right side of the frame, a person's hand holds some knitting needles, and the black yarn crosses the cat's paw. Close-up of the cat in the previous picture's paws. They are white, with pink pads/beans. You can see that the yarn is firmly snagged in her claws.
September 4, 2025 at 12:51 AM
seismogenic.bsky.social
Katla is having an eepy morning.
A fluffy calico cat lying on the ground with her front paws curled in. Her eyes are open; the right eye is almost the same color as the orange in her fur, and the left is whited out with scar tissue. She is leaning on a pillow that has green and blue t-rexes on it. The same cat in the same position as before, but now her eyes are closed. She is so comfy.
August 30, 2025 at 5:41 PM
seismogenic.bsky.social
Askja took a selfie:
A view looking upward in a room with boring white walls, ceiling, and door. Centered at the bottom of the frame are the ears and forehead of a dilute calico cat.
August 28, 2025 at 9:42 PM
seismogenic.bsky.social
Af hverju gerist þetta alltaf daginn eftir að ég kem aftur frá Íslandi???
A temperature reading of 107°F (= 42°C). Help.
August 23, 2025 at 11:00 PM
seismogenic.bsky.social
LIARS!!!
An ad for United Airlines that says, “No fees to change your flight. No, really.” This is absolutely a lie.
August 22, 2025 at 8:37 PM
seismogenic.bsky.social
This was a You Shall
Not Pass (Until You Pet Me) situation. This one got up from loafing on a porch specifically to stand in my way as I was walking!
An orange and white cat with a rainbow collar booping a person’s finger. An orange and white cat with a rainbow collar leaning into a person’s hand for scritches.
August 19, 2025 at 2:45 PM
seismogenic.bsky.social
This calico trotted right over for a boop, then flopped over and wanted to play wrestle. Lots of big purrs!
A calico cat standing on a gray sidewalk. A calico cat flopped over, belly up, on a gray sidewalk. Her belly is white, her tail is mostly black with a white tip, and her toebeans are multicolored.
August 19, 2025 at 1:15 PM
seismogenic.bsky.social
That was a productive visit to Sweden!
A venn diagram. The outer circle is labeled Countries I Have Been To. Inside are two overlapping circles: Countries Where I've Pet A Cat, and Countries Where I've Pet A Dog. I have pet both a cat and a dog in: the United States, Iceland, and Japan I have pet a cat but not a dog in: Slovakia, Denmark, Indonesia, and Italy I have pet a dog but not a cat in: New Zealand, Sweden, Germany, Norway, and Canada I have not pet an animal in: Finland, Austria, the United Kingdom, Czechia, Hungary, Mexico, and Ireland
August 19, 2025 at 11:46 AM
seismogenic.bsky.social
Stopped to give this one a lot of pets as I was walking back from downtown last night.
A gray shorthaired cat with white paws, as viewed from above.
August 19, 2025 at 10:08 AM
seismogenic.bsky.social
Eða…ætti ég að prjóna þrílitaðar peysur fyrir þrílitaða kettir?
Garn: hvítur, appelsínugulur, dokkgrár, svartur, dokkappelsínugulur, og hvítur aftur
August 18, 2025 at 5:14 PM
seismogenic.bsky.social
Ég get ekki ákveðið liti á lopapeysur fyrir kettina mína…
Garn: rjómuhvítur, ljósgrænblár, og dokkgrár Garn: dokkblár, ljósgrænblár, og rjómuhvítur Garn: blár (léttari en hinn), ljósgrænblár, og rjómuhvítur Tvær þrílitaður kettir
August 18, 2025 at 5:06 PM
seismogenic.bsky.social
Kattakaffihúsið residents!
Misia slept next to my seat the whole time I was there.
Sallý tried to taste my drink and then wanted me to throw her toy a few times (and therefore reminded me a lot of my Katla).
Misia, a fluffy gray and white cat, sleeping curled up on a table with her back feet near her face. Her toebeans are multicolored. Sallý, a shorthaired tuxedo cat, sniffing an iced latte.
August 18, 2025 at 3:18 PM
seismogenic.bsky.social
Not pictured: a brown tabby who seems to be a regular at Microbar, and who hopped up on a seat at the bar like he was going to order. He seemed to be thoroughly enjoying getting petted by three people at once.

Pictured instead: this cute little fence-peeper, who I unfortunately didn't get to pet.
A gray lattice fence atop a white wall. A little brown tabby cat with a white muzzle and chest sticks its face out of one of the gaps in the fence.
August 18, 2025 at 12:44 PM
seismogenic.bsky.social
I ran into Baktus within an hour or so of getting here.
A finger booping the nose of a big shorthaired tuxedo cat. I got some big purrs out of him, too.
August 18, 2025 at 12:36 PM
seismogenic.bsky.social
It is time for the next edition of REYKJAVÍK CAT THREAD!

Look at the SHAPE of this thing:
A very fluffy orange and white cat sitting on a gray sidewalk in front of a car. The cat is doing airplane ears (in response to a dog barking nearby). Its overall shape is of a triangle with rounded corners. Flawless. A hand scritching the same fluffy orange and white cat under its chin. It is leaning into the scratch, whiskers forward.
August 18, 2025 at 12:32 PM
seismogenic.bsky.social
Hello down there!
An airplane window photo of Oslo, Norway.
August 18, 2025 at 11:42 AM
seismogenic.bsky.social
Important Stockholm-Arlanda information: there’s a wall seismogram!
(I wish it said which earthquake…)
A seismogram printed in black on a white wall. It was at least 2 meters/6 feet high. This is in Sweden, which is not particularly seismically active. (Step it up, California!!)
August 17, 2025 at 6:26 PM
seismogenic.bsky.social
Me: I should sleep on this flight because I stayed up until 4 AM playing music.
Norway out the window:
An airplane window photo of an oval-shaped glacier in a mountainous setting. Several smaller tongues of ice extend downhill from the main glacier. There are some smaller patches of ice on the mountains in the foreground, and some liquid lakes shining brightly in the lower ground. An airplane window photo of some mountains. There’s a little snow on some of them, but they have the telltale scoops on the top and lines down the side (circques and moraines) indicating that they were once glaciated. An airplane window photo of a landscape of mountains and water. The mountains follow folded curves, and the water follows the same ones, filling in what were once high valleys when these mountains were young. An airplane window photo of some sharp linear features slicing a mountainous landscape and a long skinny lake from upper left to lower right. I’m pretty darn sure these are faults, since they’re so sharp, and the same side is up for both.
August 17, 2025 at 4:34 PM