Rich Briggs

Earthquake geologist, husband, dad, beer-n-pistachios vegan and I believe it's jogging or yogging. Tweets are my own.

[Rich Koehler @faultcreeper]

Quick recap from field suvey of yesterdays M5.8 earthquake in NV. no surface rupture observed after several transects across aftershock pattern.  Lack of surface cracking in epicentral area. Minor bank failures, lateral spread, and liquefaction features along Walker river.

[Rich Briggs @rangefront]

@lichrend @USGS_Quakes I 💚💙❤️ the Great Sand Dunes too! But this is Borah Peak in Idaho, and the scarp from the 1983 Lost River fault rupture is that little thin white line across the photo. Mountain up valley down (valley mostly down in fact - https://t.co/gioWuITXEj)

[Rich Briggs @rangefront]

Please consider applying - there have been some amazing geologists in this position over the years! including @collett_camille @FaultyAndSalty @nadinegrr @faultjumper

oh and Golden isn't a bad place to spend some time
🏔️🌻🚵‍♀️⛷️🏂🏃‍♀️🌻🏔️🍺

[USGS Earthquakes @USGS_Quakes]

Job alert 🚨 Do you love active tectonics, GIS, fieldwork, data analysis, and working in a team? USGS Golden is hiring a geologist! See this link for job details and application information: https://t.co/c3Ufhtq8Hs

[Rich Briggs @rangefront]

@timblor @DanielleVerdugo @phaneritic Locals know the name and nobody else gives af so it’s all good 🙃

[Rich Briggs @rangefront]

@TokyoSilk @wildland_zko One representation of active faults from USGS is here: https://t.co/VWU0CX2g6A

[Rich Briggs @rangefront]

@patton_cascadia ‘#Famous,’ love it. Lassen County, complete gentrification scheduled for year 2075

[Rich Briggs @rangefront]

@DanielleVerdugo @phaneritic Relative to geoid. Still, shallow. And I’m cracking up basemap says’KeddLe Ridge.’ Yeah um no

[Rich Briggs @rangefront]

@timblor It’s almost comical how the scarp is now part of the defensive perimeter. 🍋 🍋 🍋 -> 🥤

[Rich Briggs @rangefront]

Ha, looks like the airship hangar and airstrip are built right next to an active fault. Wonder what the fault setbacks for stealth balloons are 😂

#BlackSky #oops

[BlackSky @BlackSky_Inc]

#BREAKING: $BKSY releases the 1st & only #satellite image of an alleged airship at a military base in #China. The rare image was captured on Nov. 4, 2022 at 9 a.m. local time at the Korla East Test Site.
Read the full release here: https://t.co/ujwxEN2TD4
#BlackSky #OSINT

[Anthony Lomax 🌍 🇪🇺🇺🇦 @ALomaxNet]

Precise, NLL-SSST-coherence earthquake relocations for the 2023 Mw7.8 and Mw7.6, Kahramanmaraş-Gaziantep, Turkey earthquake sequence (including 2020 Mw 6.8 Elazığ, Turkey sequence). Seismic arrival data from @AFADBaskanlik. Details & catalog available at: https://t.co/1V2KcA33vH

[Rich Briggs @rangefront]

@KeepItRheol Sorry, had a Twitter-free weekend! That’s a good question. My hunch is this coalesces at shallow depths, but it can also depend on the strain regime. Transtension may stay messier deeper (https://t.co/iD3yMQK3vF)

[Rich Briggs @rangefront]

@KeepItRheol @faultcreeper I guess I’m not at all surprised how localized it is - most big ruptures in alluvium are for long stretches, and the overall geomorph of the fault zone is amazing. And thank goodness because this is the basis of trench paleoseismology! But also wow

[Rich Briggs @rangefront]

Woah, look like you can see the slope failure happen here 😧

[Doç. Dr. Taylan SANÇAR @tsancar]

A short recording of the first earthquake on 6 February./ 6 Şubat'ta olan ilk depremden kısa bir kayıt. @AktifTektonik @CengizZabci @jeomusa @snnkcz @akyuz24 #deprem #TurkeySyriaEarthquake2023 #TurkeyEarthquake

[Rich Koehler @faultcreeper]

Todays big rupture 7.8 m of concrete wall. Also, displacement cutting off a drainage ( classic shutter ridge)

[Rich Briggs @rangefront]

@geoloJD @ziyadin @pabloj_gonzalez @JudithGeology @TTremblingEarth @ekh_sci @USGS In the same vein, this is the Garlock paper that blew my mind in grad school (Peltzer at al. 2001) https://t.co/iG4L7JAr1M

[Rich Koehler @faultcreeper]

Uphill facing fault plane, faulted terrace with thrashed village in background, and ruptures extending along linear valley .

[Rich Briggs @rangefront]

@patton_cascadia @ALomaxNet @RLacassin @JudithGeology @geosmx Right? It’s scary out there, brother

[Rich Briggs @rangefront]

@ALomaxNet @patton_cascadia @RLacassin @JudithGeology @geosmx We’re seeing that the ‘aftershock’ terminology, and the widespread assumption that aftershocks are relatively unimportant, affected several pretty high-level response efforts that omitted the M7.5 intensities from spatial analyses. So it’s not just a semantic argument.

[Sinan Akciz @snnkcz]

Check out Offset rock mound by quakedr in #3D, #VR or #AR https://t.co/PKTZwVuWdG via @sketchfab we are chasing the end points of the 7.6 eq. This displaced rock mound is near the NE end. @akyuz24 @CengizZabci @tsancar @DrWendyRocks @rangefront @mrbrianolson @Stef_EQ_Geology