혜정 킴/HyeJeong Kim's Avatar

혜정 킴/HyeJeong Kim

@seairhjkim

@ Géoazur, FR // A seismologist who is interested in imaging from the very shallow to deep. Think ocean bottom/floating seismometers are beautiful. Paper archive + random thoughts

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Latest posts by 혜정 킴/HyeJeong Kim @seairhjkim

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Believe it or not, on April 24, 2019 (20190424), I saved a paper with a file name "mermaids_awsome.pdf". When I was a master student! I am now working at the home of mermaids!😭

13.03.2026 16:59 👍 0 🔁 0 💬 0 📌 0

[13] I like that in Géoazur, there are non-research interactions with members of the lab. We enjoy our lunch/coffee together, talking about private life sometimes. I think I didn't have much except with non-US postdoc while I was in the USA. It seems like it is a good place to live as a single!

11.03.2026 13:47 👍 0 🔁 0 💬 0 📌 0

Since then, my unconscious instinct hasn’t let me think about expanding what I am doing. That’s the fun of science and motivation to finish the current work. Not a good excuse, but that drags everything back. It’s painful. I only wish I could survive through these swirls of uncertainty. 3/3

04.03.2026 09:41 👍 0 🔁 0 💬 0 📌 0

A postdoc whose immigration status depends on the contract can’t really think a year ahead. My past contract, when I just started thinking about a longer future in my PI’s lab, I had to leave due to unexpected funding uncertainty. 2/3

04.03.2026 09:41 👍 0 🔁 0 💬 1 📌 0

[12] I always feel bitter and think "Ah, I wish I were a permanent researcher" when projects in 2027 and 2028 are discussed. Stability of the researcher brings creativity! 1/3

04.03.2026 09:41 👍 0 🔁 0 💬 1 📌 0

[11] Géoazur is really well balanced in terms of the sub-disciplines of seismology! We have a big group doing experiments, modeling, observation (active/passive), geodesy, network engineers, imagers, seismicity catalogers, and more... It's a dream lab to me...

24.02.2026 10:46 👍 0 🔁 0 💬 0 📌 0
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Friday’s M3.5 and its 13 aftershocks overlap with the aftershock region of the 2020 M5.7 Magna earthquake and is likely an aftershock of the 2020 event. Seismicity in the Magna area is still elevated relative to pre-2020 levels, indicating that aftershocks are still continuing.

17.02.2026 20:08 👍 3 🔁 2 💬 1 📌 0

[10] I am learning that implementing the FAIR principles requires a lot of energy and time from many people! Working on MERMAIDs to make it shareable with a wide audience in the near future. I am happy to have this experience with colleagues in the institute!

16.02.2026 17:34 👍 0 🔁 0 💬 1 📌 0

About the HEB (Hawaiian Emperor Bend) array !

10.02.2026 15:55 👍 0 🔁 0 💬 0 📌 0
Preview
Release SeisBench v0.11 - DAS support, performance improvements, new datasets and models, ... · seisbench/seisbench SeisBench v0.11 is the largest SeisBench release so far, adding major new features, substantial performance improvements, new datasets and a new model. Major updates SeisBench now offers support f...

SeisBench v0.11 is out now, the largest feature and performance update to SeisBench so far! In this thread, I'll highlight some of the key contributions. Thanks to everyone who helped putting together this release!

github.com/seisbench/se...

30.01.2026 16:17 👍 4 🔁 2 💬 2 📌 0

[9] As in Japan, I have chances to learn the inside electronics of instrument I am using. This really helps to understand what is happening in my data set and sometimes provides a great chance to improve it, for better and wider usage.

29.01.2026 17:11 👍 1 🔁 0 💬 1 📌 0

After reviewing nearly 200 applications from prospective grad students and postdocs over the past few months for a couple different 🧪⚒️ postings, here are some tips, at least as they apply to North American positions. I hope they help future applicants. Share with your networks. 🧵

04.01.2026 14:17 👍 121 🔁 64 💬 4 📌 12

In French, "travaille" is work, not traveling! I always found this interesting from the very beginning. Anyways, I am saying this because the best pizza shop in the neighborhood is closed for "travaux", which I thought (again!) the owner is traveling out! But it was closed for renovation... 🫠

10.01.2026 09:39 👍 1 🔁 0 💬 0 📌 0

Will such large-scale (spatially large and multi-year) experiments happen again? If so, where? In the US? Or are we now limited in resources that we have to gather from multiple countries? Or do we not need such experiments anymore?

23.12.2025 17:31 👍 0 🔁 0 💬 0 📌 0

It is impressive that the USArray(15 yr) and the Cascadia Initiative, REALLY big seismic experiments, were done by a single country, the US. Those data sets not only supported many PhD students at that time, but also are endlessly giving us new insights with advancing analysis methods.

23.12.2025 17:31 👍 0 🔁 0 💬 1 📌 0

I do feel the emptiness and AGU becoming more "American" than it used to be... reminding me of Bong Junho's quote "The Oscars are not an international film festival. They're very local.”

21.12.2025 16:15 👍 1 🔁 0 💬 0 📌 0

It was a great #AGU25 meeting, as always! After years in the US, previously in Japan, and now in France, I feel like everyone(in seismology) is familiar! It was funny when I said, "do I know you?" at a gathering. Thanks to all who remember me!

21.12.2025 16:15 👍 2 🔁 0 💬 1 📌 0

A small technical favorite part is that we used an ensemble of models (posterior probability) from the Bayesian to calculate the amount of displacement. I believe this is a good approach to appreciate the seismic model from the Bayesian approach, rather than using a median or maximum profile.

17.12.2025 11:52 👍 1 🔁 0 💬 0 📌 0

Some geological context is explained in the paper and in detail in the supplement. I recommend reading it!
I remember the excitement we had when the receiver functions were significantly different! RFs with geophones are good enough to get very laterally and vertically high resolution image!

16.12.2025 14:17 👍 0 🔁 0 💬 1 📌 0

The paper is very meaningful because the East Bench fault, although active, was not explored well enough from trenching due to urbanization. Knowing the amount of displacement due to fault movement is meaningful to know the EBF within ~12 Ma Wasatch front.

16.12.2025 14:15 👍 2 🔁 1 💬 1 📌 0
Bedrock Offset Across the Wasatch Fault in Salt Lake City, Utah, from Teleseismic Converted Phases and Its Geologic Implications | Seismological Research Letters | GeoScienceWorld Abstract. In 2018, 32 three‐component geophones were deployed in a linear array with ∼90 m average station spacing across the active East Bench fault

New paper in! Using a ~3 km long dense geophone array, we were able to capture laterally sharp bedrock offset caused by normal faulting movement of the active East Bench fault of the Wasatch front.

Kim, H.J., Pechmann, Lin, McKean, & Hardwick. (2025) doi.org/10.1785/0220...

15.12.2025 19:24 👍 4 🔁 1 💬 1 📌 0
AGU25

#AGU25

Our Monday morning 1 oral: eppro01.ativ.me/appinfo.php?...
Morning 2 Geoburst: eppro01.ativ.me/appinfo.php?...
Afternoon Posters: eppro01.ativ.me/appinfo.php?...

14.12.2025 00:48 👍 0 🔁 0 💬 0 📌 0

#AGU25 meeting is coming in two days! We have a great session on the ⭐Geophysics in the Oceans (DI11A, DI12A)! Not only sharing observations, but also modeling and new frontiers! It's the first session on ⭐Monday morning. Consider getting your name tags in advance, so as not to miss our first talks!

14.12.2025 00:46 👍 1 🔁 0 💬 1 📌 0

So many familiar faces at the airport border control with poster tubes which made things easier!

13.12.2025 23:50 👍 0 🔁 0 💬 0 📌 0
Preview
Fête de la Sainte-Barbe — Wikipédia

[8] Here, last week, on Saint Barbe's day, geologists acknowledged the day as “Geologists’ day” and had a small celebration. I think I will bring this culture anywhere else I go! fr.wikipedia.org/wiki/F%C3%AA...

10.12.2025 16:27 👍 0 🔁 0 💬 1 📌 0

Oral: eppro01.ativ.me/appinfo.php?...
Geoburst Oral: eppro01.ativ.me/appinfo.php?...
Posters: eppro01.ativ.me/appinfo.php?...

10.12.2025 13:16 👍 0 🔁 0 💬 0 📌 0

#AGU2025 meeting is coming soon! We have a great session on the Geophysics in the Oceans (DI11A, DI12A)! Not only sharing observations, but also modeling and new frontiers! It's the first session on ⭐Monday morning⭐. Consider getting your name tags in advance, so as not to miss our first talks!

10.12.2025 10:47 👍 1 🔁 0 💬 1 📌 0
A look back at the Epos-France 2025 Meetings! | Epos-France 4 days of discussions8 themes180 participants15 workshops50 posters presentedand… countless informal discussions and smiles!

A trace of me in one of French conferences, nicely included in pictures of the group and listening to presentations! www.epos-france.fr/en/blog/2025...

04.12.2025 18:52 👍 0 🔁 0 💬 0 📌 0

Finally! The number of citation of my seismology paper exceeded the number of my marine biology paper! Yay! I look less suspicious on my google scholar, I hope

02.12.2025 16:11 👍 2 🔁 0 💬 0 📌 0

[7] Yesterday, someone asked "is your lab dynamic?" Without doubt, Geoazur is dynamic! 120 permanent researchers/engineers and 80 non-permanent including PhD students. It is hard to be not dynamic. It's just that I should set priorities not to get too excited.

02.12.2025 09:24 👍 0 🔁 0 💬 1 📌 0