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#faulting — Public Fediverse posts

Live and recent posts from across the Fediverse tagged #faulting, aggregated by home.social.

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  1. Anatomy Of A Seafloor Spreading Event Captured By In Situ Seismogeodesy
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    doi.org/10.1038/s41586-026-107 <-- shared paper
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    smithsonianmag.com/smart-news/ <-- shared technical media article
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    H/T @Seabed 2030
    “🔍 For the first time, scientists have observed seafloor spreading in real time.
    Seafloor spreading is the process by which new oceanic crust is formed at mid-ocean ridges - a geological process that has shaped entire ocean basins over millions of years.
    During a research expedition in the Indian Ocean, scientists had just deployed a suite of instruments when a series of earthquakes triggered a seafloor spreading event, allowing them to observe the process as it unfolded.
    The findings offer rare new insights into how new oceanic crust forms and how the seafloor continues to evolve…”
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    “Earth’s outermost layer - the crust - is constantly renewing itself. It’s broken into giant chunks called tectonic plates that pull apart, push against or slide past one another, creating grand geologic features.
    Underwater mountain ranges, or mid-ocean ridges, for instance, generally take shape where two tectonic plates are moving away from each other. Magma can then bubble up in between, solidifying and turning into new oceanic crust as part of a process called seafloor spreading. Although the phenomenon has created entire ocean basins, it remains quite mysterious because it happens so deep in the water.
    Now, for the first time, scientists have observed this dynamic activity happening in real time. They describe their findings - and their stroke of luck - in a study [link above], shedding light on a mechanism that made roughly two-thirds of Earth’s crust…”
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    #Seabed2030 #OceanMapping #Hydrospatial #remotesensing #seafloor #seafloorspreading #oceanic #crust #geology #structuralgeology #IndianOcean #earthquake #midoceanridge #instrumentation #marine #seabed #hydrography #model #modeling #mapping #GIS #spatial #tectonicplates #magma #fortuitous #survey #seismogeodetic #monitoring #submarine #rifting #observation #volcanism #seismicity #dyke #fault #faulting #midoceanridge #MOR

  2. New Zealand [3D] Community Fault Model [CFM] [geologic spatial/visualisation]
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    geo3d.pgi.gov.pl/NZ_CFM/index. <-- shared New Zealand Community Fault Model page
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    gns.cri.nz/research-projects/n <-- shared community fault model details
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    gns.cri.nz/data-and-resources/ <-- shared #GNS downloadable open dataset, ‘NZ CFM v1.0 is a two- and three-dimensional representation of active and potentially active fault zones along the New Zealand plate boundary.’
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    [my upbringing and geology uni degrees were in NZ]
    H/T @earth Sciences New Zealand
    #geology #maps #NaturalHazards #3D #interactive #faultlines #earthquakes #tech #technology #NewZealand #GIS #spatial #mapping #visualisation #earthquakes #faulting #faultzone #CommunityFaultModel #CFM #opendata #Geo3D #movement #attributes #geometry #risk #hazard #naturalhazard
    @GNS Science | @NWIA | @earth Sciences New Zealand

  3. Timing And Style Of Tectonic Assembly And Exhumation Of The Mchugh Complex Within The Chugach-Kodiak Accretionary Wedge, Alaska
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    doi.org/10.1029/2025TC009004 <-- shared paper
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    discoveryalert.com.au/chugach- <-- shared technical article
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    [this paper is WAY over my head in terms of the nuance of structural geology, but still fascinating; further, I have to say: these are TRULY gorgeous, well-designed & presented, and useful geologic maps, cross-sections, annotated photographs and other visualisations (I am jealous of that level of skill, in the BEST of ways!)]
    #geology #structuralgeology #fieldwork #geologic #mapping #KenaiPeninsula #McHughComplex #tectonics #underplating #faulting #subduction #erosion #Exhumation #ChugachKodiak #AccretionaryWedge #Alaska #coast #coastal #mineralogy #transects #crosssections #model #modeling #sampling #spectroscopy #accretionary #accretionarymargin #plateboundary #trench #interpretation #peneplanation #forearc

  4. Unravelling The Dance Of Earthquakes - Evidence Of Partial Synchronization Of The Northern San Andreas Fault And Cascadia Megathrust
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    doi.org/10.1130/GES02857.1 <-- shared paper
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    “Previous paleoseismic work has suggested a possible stress triggering relationship between the Cascadia subduction zone and the northern San Andreas fault based on similar event timings. Turbidite successions correlated to both systems may support this hypothesis. Historic earthquakes in 1980 and 1992 in the Cascadia subduction zone and the 1906 earthquake on the northern San Andreas fault left turbidite records that are temporally well constrained by bomb-carbon−supported age-depth models..."
    #geology #USWest #Seattle #Washington #California #earthquake #engineeringeology #fault #faulting #SanAndreas #Cascadiasubductionzone #linked #Cascadia #research #sediment #sedimentology #Turbidite #paleoseismology #historic #spatial #spatialanalysis #spatiotemporal #model #modeling #stress #subduction #dating #radiocarbon #Holocene

  5. Preliminary Observations of the 5 April 2024 Mw 4.8 New Jersey Earthquake
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    doi.org/10.1785/0320240024 <-- shared paper
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    doi.org/10.1785/0320240020 <-- shared paper
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    doi.org/10.1177/87552930231215 <-- shared paper
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    [This is ‘unusual’ seismic activity and shaking patterns for this part of the USA, on an ‘unmapped’ fault, and seemingly challenging existing models of earthquake risk in the region; while a 4.8 is not big, it must have been quite a surprise for the people in this heavily populated U.S. Northeast not used to such things (per the paper, the USGS estimated it was felt by some 42 million people.]
    #GIS #spatial #mapping #earthquake #risk #hazard #spatialanalysis #model #modeling #NewJersey #USA #geology #engineeringgeology #seismic #USGS #seismology #fault #faulting #Tewksbury #DidYouFeelIt #geotechnical #NIST #remotesensing #InSAR #strikeslip #mechanism #thrust