Jimmy Atterholt

Seismologist 🌎 @Caltech Seismo Lab PhD 🌎 Earthquakes and Fault Zones

[Jimmy Atterholt @jimatterholt]

New paper out in JGR w/ @ZhongwenZhan @yanyang000 and Weiqiang Zhu! We use a DAS array that crosses the Garlock Fault to unravel its structure. We learn about important fault zone parameters and show the strengths of using dark fibers to study fault zones. https://t.co/nXASJ9OaCh

[Jimmy Atterholt @jimatterholt]

@joelhedwards @ZhongwenZhan Thanks, Joel!

[Jimmy Atterholt @jimatterholt]

DAS meets the Moho! New Science Adv paper w/ @ZhongwenZhan. We developed a method for finding Moho reflections in DAS data. One EQ can yield 10s of km of fine-scale Moho depth estimates. We used it on SoCal EQs and learned about the Garlock, Coso, and more https://t.co/Egl0Hf87w4

[Jimmy Atterholt @jimatterholt]

@MCSlab_uiuc @ZhongwenZhan … more earthquakes we could do a much broader study. Newport Inglewood would be a fantastic target. What’s more interesting than a steeply dipping Moho in a tectonic mess? :)

[Jimmy Atterholt @jimatterholt]

@MCSlab_uiuc @ZhongwenZhan Thanks Ahmed! And great question. Newport Inglewood was a little too far away to look at with this array. We’d need the right earthquake-fiber combo to look over there. Not sure if we have the right data for that right now. But the hope is as we sense more fibers and record…

[Jimmy Atterholt @jimatterholt]

DAS meets the Moho! New Science Adv paper w/ @ZhongwenZhan. We developed a method for finding Moho reflections in DAS data. One EQ can yield 10s of km of fine-scale Moho depth estimates. We used it on SoCal EQs and learned about the Garlock, Coso, and more https://t.co/Egl0Hf87w4

[Jimmy Atterholt @jimatterholt]

New paper led by Hao Guo! We carefully relocated events in the slab in southern Cascadia and computed their source parameters. Our observations suggest relatively low effective stress in the slab crust and, by extension, the megathrust. Check it out here: https://t.co/G9aFTlZsK7

[Jimmy Atterholt @jimatterholt]

If you are interested in faults and fault zones and/or how they affect ruptures, please consider submitting an abstract to our interdisciplinary session at #AGU24!
https://t.co/YEV156O4dZ

[Jimmy Atterholt @jimatterholt]

@SeismoSue Thanks @SeismoSue !!

[Jimmy Atterholt @jimatterholt]

@ZhongwenZhan @zross_ @USGS Thanks Zhongwen, it’s been a pleasure :)

[Jimmy Atterholt @jimatterholt]

@MCSlab_uiuc @ZhongwenZhan @zross_ @USGS Thanks Ahmed!!

[Zhongwen Zhan @ZhongwenZhan]

Another outstanding PhD co-advised with @zross_ : Dr. James Atterholt @jimatterholt! Published multiple papers on applying DAS to detect and image fault zones. Won 2 OSPAs from SSA andAGU. Will join @USGS as a Mendenhall Postdoctoral Fellow soon. Congratulations! #proud #mentor

[Jimmy Atterholt @jimatterholt]

If you are interested in faults and fault zones and/or how they affect ruptures, please consider submitting an abstract to our interdisciplinary session at #AGU24!
https://t.co/YEV156O4dZ

[Jimmy Atterholt @jimatterholt]

@MCSlab_uiuc @MoAbdelmeguid Thanks Ahmed!

[Jimmy Atterholt @jimatterholt]

We just published a preprint! We used a dark fiber to image the Garlock Fault and discovered some peculiar properties of its damage zone and velocity structure. This shows how useful DAS can be for imaging major faults. Link: https://t.co/YRtL3yuo5q

[Caltech Seismo Lab @CaltechSeismo]

Meet Jimmy Atterholt, a Seismo Lab Grad Student using new instruments and applied math to image crustal structure and earthquake ruptures! Jimmy is giving a talk on his Fiber Optic Seismology research today in the Benioff Room! (254 S Mudd) #SeismoLabSpotlight @jimatterholt

[Jimmy Atterholt @jimatterholt]

New paper out in #GJI with @zross_! We invert for probabilistic estimates of low-dimensional source characteristics for every large strike-slip earthquake of the past three decades. We find several interesting patterns in rupture behavior. Link: https://t.co/prJybcJjuJ

[Zhichao Shen @Zhichao_Geo]

Interested in submarine DAS? Feel free to swing by my talk tomorrow at 8:15am #SSA. I will present how to enhance the T-wave signals on submarine cable through curvelet denoising and how to use them for ocean seismicity and thermometry. #WHOI

[Jimmy Atterholt @jimatterholt]

I'll be giving a talk tomorrow at SSA on my work imaging the Garlock Fault Zone from the shallow subsurface to seismogenic depth with DAS. It's a collaborative effort with @ZhongwenZhan, @yanyang000, and Weiqiang Zhu. Come check it out if you're interested!

[Caltech Seismo Lab @CaltechSeismo]

#SSA2023 has begun! Check out Grad Student James Atterholt's @jimatterholt poster where he presents an investigation of finite source characteristics of all large strike-slip earthquakes of the past three decades, finding several interesting patterns! https://t.co/PeyQiEUNCr