#seismicity — Public Fediverse posts
Live and recent posts from across the Fediverse tagged #seismicity, aggregated by home.social.
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Anatomy Of A Seafloor Spreading Event Captured By In Situ Seismogeodesy
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https://doi.org/10.1038/s41586-026-10785-0 <-- shared paper
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https://www.smithsonianmag.com/smart-news/in-a-first-scientists-witness-the-seafloor-spread-in-real-time-giving-them-a-rare-glimpse-at-a-mysterious-geologic-process-180989123/ <-- 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 -
Anatomy Of A Seafloor Spreading Event Captured By In Situ Seismogeodesy
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https://doi.org/10.1038/s41586-026-10785-0 <-- shared paper
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https://www.smithsonianmag.com/smart-news/in-a-first-scientists-witness-the-seafloor-spread-in-real-time-giving-them-a-rare-glimpse-at-a-mysterious-geologic-process-180989123/ <-- shared technical media article
--
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…”
--
“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 -
Venezuela’s Powerful Earthquakes Were a Rare ‘Seismic Doublet’
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Venezuela’s Powerful Earthquakes Were a Rare ‘Seismic Doublet’
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Two Massive Earthquakes Struck Venezuela. Thousands Are Feared Dead
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Two Massive Earthquakes Struck Venezuela. Thousands Are Feared Dead
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Thoughts and light to those in #Caracas , #Venezuela and proximity. Sadly these are mass casualty events. Japan has had close in time events also but less severe, as has the US pacific coast and inland. It takes time to derive correlation from shock swarms to determine propagation and observables. The #weather (and weather like) element in #Seismicity is much more challenging and vexing than predictions we are already pretty good at . Rain is probably in the forecast
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2/n…there is something else totally unrelated to that last but even more bizarre. I’ve seen several papers over the course of two weeks now involving recent #Earthquakes, #Seismicity interactions, #Volcanism and plate boundaries, two of which involve having to lift one’s jaw off the floor. These are not simulations or predictions . They are papers on data, measurements and observations post the recent events they refer to in #Japan, the #Philippines and elsewhere. Taken together they point to…
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1/2 Keep an Eye and a Half on The Planet Dept : #SpaceWeather, #Seismicity, #Volcanism, #WeatherExtrema, #TidalExtrema.
We are primed for unusual coinciding strangeness. That sounds about as far from a scientific statement as you can make.
The danger is that with all the other ongoing geopolitical drama and noise we miss opportunities where otherwise we’d have gotten people out of the way. Adults need to be minding the store. Even if that rules out the #US entirely at this point… -
1/2 Keep an Eye and a Half on The Planet Dept : #SpaceWeather, #Seismicity, #Volcanism, #WeatherExtrema, #TidalExtrema.
We are primed for unusual coinciding strangeness. That sounds about as far from a scientific statement as you can make.
The danger is that with all the other ongoing geopolitical drama and noise we miss opportunities where otherwise we’d have gotten people out of the way. Adults need to be minding the store. Even if that rules out the #US entirely at this point… -
The Cascadia Subduction Zone Isn’t Shutting Down – But It’s More Complicated Than We Thought
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https://theconversation.com/the-cascadia-subduction-zone-isnt-shutting-down-but-its-more-complicated-than-we-thought-279730 <-- shared technical article
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https://doi.org/10.1126/sciadv.ady8347 <-- shared paper
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#SciComm #ScienceCommunication #Earthquakes #engineeringgeology #geology #risk #hazard #fault #faulting #Vancouver #VancouverIsland #BritishColumbia #Seattle #OlympicPeninsula #PugetSound #WashingtonState #PNW #PacificNorthwest #NorthAmerica #plateboundary #subduction #platetectonics #spatialanalysis #spatiotemporal #seismicity #seismic #geophysics #offshore #remotesensing #Cascadia #CascadiaSubductionZone #mechanics #lithosphere## -
The Cascadia Subduction Zone Isn’t Shutting Down – But It’s More Complicated Than We Thought
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https://theconversation.com/the-cascadia-subduction-zone-isnt-shutting-down-but-its-more-complicated-than-we-thought-279730 <-- shared technical article
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https://doi.org/10.1126/sciadv.ady8347 <-- shared paper
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#SciComm #ScienceCommunication #Earthquakes #engineeringgeology #geology #risk #hazard #fault #faulting #Vancouver #VancouverIsland #BritishColumbia #Seattle #OlympicPeninsula #PugetSound #WashingtonState #PNW #PacificNorthwest #NorthAmerica #plateboundary #subduction #platetectonics #spatialanalysis #spatiotemporal #seismicity #seismic #geophysics #offshore #remotesensing #Cascadia #CascadiaSubductionZone #mechanics #lithosphere## -
Slab Tearing Along A Subducted Oceanic Plate Joint Beneath The Alaska Peninsula
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https://doi.org/10.1038/s41561-025-01749-6 <-- shared paper
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#fault #faulting #subduction #slab #oceanic #plate #trench #Alaska #USA #geophysics #seismic #seismology #remotesensing #tomography #model #modeling #seismicity #volcano #vulcanism #Aniakchak #asthenosphere #geology #structuralgeology #mantle -
Slab Tearing Along A Subducted Oceanic Plate Joint Beneath The Alaska Peninsula
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https://doi.org/10.1038/s41561-025-01749-6 <-- shared paper
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#fault #faulting #subduction #slab #oceanic #plate #trench #Alaska #USA #geophysics #seismic #seismology #remotesensing #tomography #model #modeling #seismicity #volcano #vulcanism #Aniakchak #asthenosphere #geology #structuralgeology #mantle -
Implications Of Earthquakes Triggered By Massive Injection Of Produced Water In Saline Aquifers For Large-Scale Geologic Storage Of CO2
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https://doi.org/10.1016/j.ijggc.2025.104447 <-- shared paper
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#largescale #CO2 #storage #inducedseismicity #seismicity #carboncapture #geology #decarbonization #climatechange #globalwarming #subsurface #scCO2 #earthquake #model #modeling #injectiom #oilandgas #reservoir #volume #Oklahoma #Texas #USA #magnitude #pressure #lubrication #sediment #structure -
Implications Of Earthquakes Triggered By Massive Injection Of Produced Water In Saline Aquifers For Large-Scale Geologic Storage Of CO2
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https://doi.org/10.1016/j.ijggc.2025.104447 <-- shared paper
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#largescale #CO2 #storage #inducedseismicity #seismicity #carboncapture #geology #decarbonization #climatechange #globalwarming #subsurface #scCO2 #earthquake #model #modeling #injectiom #oilandgas #reservoir #volume #Oklahoma #Texas #USA #magnitude #pressure #lubrication #sediment #structure -
#Naples residents camp #outdoors after overnight #quake https://www.bbc.com/news/articles/cgkm8dxky82o
Many people in and around the Italian city spend the night on the streets and in their cars, fearing aftershocks.
#megavolcanoes #volcanoes #seismicity -
#Naples residents camp #outdoors after overnight #quake https://www.bbc.com/news/articles/cgkm8dxky82o
Many people in and around the Italian city spend the night on the streets and in their cars, fearing aftershocks.
#megavolcanoes #volcanoes #seismicity -
Escalation Of Caldera Unrest Indicated By Increasing Emission Of Isotopically Light Sulfur
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https://doi.org/10.1038/s41561-024-01632-w <-- shared paper
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#GIS #spatial #mapping #geology #structuralgeology #volcano #vulcanism #caldera #numerical #model #modeling #eruption #risk #hazard #seismicity #deformation #gases #engineeringgeology #physicochemical #monitoring #CampiFlegrei #Italy #sulfur #fumaroles #hydrothermal #magma #dataanalysis #global -
Escalation Of Caldera Unrest Indicated By Increasing Emission Of Isotopically Light Sulfur
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https://doi.org/10.1038/s41561-024-01632-w <-- shared paper
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#GIS #spatial #mapping #geology #structuralgeology #volcano #vulcanism #caldera #numerical #model #modeling #eruption #risk #hazard #seismicity #deformation #gases #engineeringgeology #physicochemical #monitoring #CampiFlegrei #Italy #sulfur #fumaroles #hydrothermal #magma #dataanalysis #global -
Large Magma Bodies Found Beneath Dormant Volcanoes, Surprising Scientists
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https://phys.org/news/2025-01-large-magma-bodies-beneath-dormant.html <-- shared technical article
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https://doi.org/10.1038/s41561-024-01630-y <-- shared paper
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#GIS #spatial #mapping #remotesensing #seismology #seismic #teleseismic #magma #volcano #vulcanism #geophysics #geophysical #geology #structuralgeology #crust #hotspot #PNW #PacificNorthwest #MountRainer #MountSaintHelens #eruption #dormant #Cascades #CascadeRange #spatialanalysis #spatiotemporal #MountHood #ThreeSisters #Oregon #Washington #California #NewberryVolcano #CraterLake #MountShasta #LassenPeak #partialmelt #model #modeling #seismicity #earthquake #risk #hazard #active #threat #monitoring #engineeringgeology #EarlyWarningSystem -
Large Magma Bodies Found Beneath Dormant Volcanoes, Surprising Scientists
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https://phys.org/news/2025-01-large-magma-bodies-beneath-dormant.html <-- shared technical article
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https://doi.org/10.1038/s41561-024-01630-y <-- shared paper
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#GIS #spatial #mapping #remotesensing #seismology #seismic #teleseismic #magma #volcano #vulcanism #geophysics #geophysical #geology #structuralgeology #crust #hotspot #PNW #PacificNorthwest #MountRainer #MountSaintHelens #eruption #dormant #Cascades #CascadeRange #spatialanalysis #spatiotemporal #MountHood #ThreeSisters #Oregon #Washington #California #NewberryVolcano #CraterLake #MountShasta #LassenPeak #partialmelt #model #modeling #seismicity #earthquake #risk #hazard #active #threat #monitoring #engineeringgeology #EarlyWarningSystem -
Deep Beneath California's Sierra Nevada, Earth's Lithosphere May Be Peeling Away
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https://phys.org/news/2025-01-deep-beneath-california-sierra-nevada.html <-- shared technical article
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https://doi.org/10.1029/2024GL111290 <-- shared paper
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#GIS #spatial #mapping #geology #lithosphere #California #SierraNevada #continentalcrust #crust #mantle #foundering #remotesensing #geophysics #geophysical #earthquake #spatialanalysis #spatiotemporal #structuralgeology #earthquake #seismic #seismology #Moho #platetectonics #tectonics #shearzone #faults #faulting #seismicity #model #modeling #3dmodel -
Deep Beneath California's Sierra Nevada, Earth's Lithosphere May Be Peeling Away
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https://phys.org/news/2025-01-deep-beneath-california-sierra-nevada.html <-- shared technical article
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https://doi.org/10.1029/2024GL111290 <-- shared paper
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#GIS #spatial #mapping #geology #lithosphere #California #SierraNevada #continentalcrust #crust #mantle #foundering #remotesensing #geophysics #geophysical #earthquake #spatialanalysis #spatiotemporal #structuralgeology #earthquake #seismic #seismology #Moho #platetectonics #tectonics #shearzone #faults #faulting #seismicity #model #modeling #3dmodel -
The 2023 US 50-State National Seismic Hazard Model - Overview And Implications
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https://www.usgs.gov/programs/earthquake-hazards/science/2023-national-seismic-hazard-model-whats-shaking <-- USGS technical article
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https://doi.org/10.1177/87552930231215428 <-- shared paper
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#GIS #spatial #mapping #earthquake #seismichazard #risk #hazard #shakemap #cost #economics #geology #engineeringgeology #hazardmodel #model #modeling #seismicity #faultruptures #groundmotions #probabilistic #probability #geostatistics #engineering #planning #management #mitigation #NSHM #forecast #infrastructure #publicsafety #hazardassessment #fault #faulting #structuralgeology #intensity #mercalli #buildingcode #design #publicpolicy #shakemap #engineeringrisk #future
@USGS @FEMA -
The 2023 US 50-State National Seismic Hazard Model - Overview And Implications
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https://www.usgs.gov/programs/earthquake-hazards/science/2023-national-seismic-hazard-model-whats-shaking <-- USGS technical article
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https://doi.org/10.1177/87552930231215428 <-- shared paper
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#GIS #spatial #mapping #earthquake #seismichazard #risk #hazard #shakemap #cost #economics #geology #engineeringgeology #hazardmodel #model #modeling #seismicity #faultruptures #groundmotions #probabilistic #probability #geostatistics #engineering #planning #management #mitigation #NSHM #forecast #infrastructure #publicsafety #hazardassessment #fault #faulting #structuralgeology #intensity #mercalli #buildingcode #design #publicpolicy #shakemap #engineeringrisk #future
@USGS @FEMA -
Do large surface creep events link to deeper earthquakes?
Huang et al.'s research on the Calaveras Fault suggests that structural controls are more important than surface creep transients in driving seismicity.
Read more: https://doi.org/10.26443/seismica.v3i2.1337
#Calaveras #fault #seismicity #Seismology #EarthquakeScience #peerreviewed #DiamondOpenAccess #Earthquake #OpenAccess #OpenScience
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Latest Earthquakes Interactive [Global] Map – USGS
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https://earthquake.usgs.gov/earthquakes/map/ <-- shared global map
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https://www.usgs.gov/programs/earthquake-hazards <-- USGS earthquake hazards home page
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“The USGS monitors and reports on earthquakes, assesses earthquake impacts and hazards, and conducts targeted research on the causes and effects of earthquakes. [They] undertake these activities as part of the larger National Earthquake Hazards Reduction Program (NEHRP)…”
The interactive map shows “Latest earthquakes map and list (past 24 hours, M2.5+) from the ANSS (Advanced National Seismic System)…”
#GIS #spatial #mapping #earthquakes #webmap #onlinemap #mapportal #earthquake #earthquakehazard #risk #hazard #catalogue #impacts #cause #effect #geology #engineeringgeology #global #USGS #NEHRP #ANSS #seismicity #mitigation
@USGS -
Latest Earthquakes Interactive [Global] Map – USGS
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https://earthquake.usgs.gov/earthquakes/map/ <-- shared global map
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https://www.usgs.gov/programs/earthquake-hazards <-- USGS earthquake hazards home page
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“The USGS monitors and reports on earthquakes, assesses earthquake impacts and hazards, and conducts targeted research on the causes and effects of earthquakes. [They] undertake these activities as part of the larger National Earthquake Hazards Reduction Program (NEHRP)…”
The interactive map shows “Latest earthquakes map and list (past 24 hours, M2.5+) from the ANSS (Advanced National Seismic System)…”
#GIS #spatial #mapping #earthquakes #webmap #onlinemap #mapportal #earthquake #earthquakehazard #risk #hazard #catalogue #impacts #cause #effect #geology #engineeringgeology #global #USGS #NEHRP #ANSS #seismicity #mitigation
@USGS -
"Control of Seismicity Migration in Earthquake Swarms by Injected Fluid Volume and Aseismic Crack Propagation"
Research Article: JGR Solid Earth, AGU https://agupubs.onlinelibrary.wiley.com/doi/10.1029/2023JB027276
Philippe Danré and al.The evolution of #fluid injection-induced seismicity, generally characterized through the number of events or their seismic moment, depends on, among other factors, the injected fluid volume. Migration of #seismicity is observed during those sequences and might be caused by a range of mechanisms...
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"Control of Seismicity Migration in Earthquake Swarms by Injected Fluid Volume and Aseismic Crack Propagation"
Research Article: JGR Solid Earth, AGU https://agupubs.onlinelibrary.wiley.com/doi/10.1029/2023JB027276
Philippe Danré and al.The evolution of #fluid injection-induced seismicity, generally characterized through the number of events or their seismic moment, depends on, among other factors, the injected fluid volume. Migration of #seismicity is observed during those sequences and might be caused by a range of mechanisms...
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InSAR-Observed Surface Deformation In New Mexico’s Permian Basin Shows Threats And Opportunities Presented By Leaky Injection Wells [remote sensing]
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https://www.nature.com/articles/s41598-023-42696-9 <-- shared paper
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#GIS #spatial #mapping #remotesensing #InSAR #radar #deformation #NewMexico #aquifer #groundwater #waterresources #numericmodeling #model #modeling #injection #well #injectionwell #oilandgas #risk #hazard #grounddeformation #inducedseismicity #seismicity #surfacedeformation #waterresources #waterquality #watersecurity #water #hydrology -
InSAR-Observed Surface Deformation In New Mexico’s Permian Basin Shows Threats And Opportunities Presented By Leaky Injection Wells [remote sensing]
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https://www.nature.com/articles/s41598-023-42696-9 <-- shared paper
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#GIS #spatial #mapping #remotesensing #InSAR #radar #deformation #NewMexico #aquifer #groundwater #waterresources #numericmodeling #model #modeling #injection #well #injectionwell #oilandgas #risk #hazard #grounddeformation #inducedseismicity #seismicity #surfacedeformation #waterresources #waterquality #watersecurity #water #hydrology