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#tehuantepec — Public Fediverse posts

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

  1. 💧🌏 Greg Cocks @[email protected] ·

    Mw 8.2 Tehuantepec, Mexico Earthquake Rupture Segmentation And A Plate Boundary Revealed By A Relocated Machine Learning Based Aftershock Catalog
    --
    doi.org/10.22541/essoar.150096 <-- shared paper
    --
    science.org/content/article/un <-- shared 2017 technical article
    --
    H/T @Allen Husker | Research Professor and Manager of the Southern California Seismic Network
    “The 2017 Mw8.2 Tehuantepec earthquake is the largest instrumentally recorded normal faulting earthquake in Mexico. It occurred offshore on a reactivated outer rise fault within the Tehuantepec megathrust seismic gap that is within the undefined intersection of the North American & Caribbean & Cocos plates. [The authors] analyze[d] a relocated machine learning generated aftershock catalog that used data from temporary and permanent seismic stations around the Gulf of Tehuantepec to further interpret the rupture process of this earthquake. Similar to other results, [they found] that the earthquake initiated 100 km offshore, running northwest 90 km into the intersection. [Their] findings then show that the rupture jumped 10 km inland as it crossed the trench-perpendicular Tehuantepec Ridge and continued another 60 km before stopping. [They] used finite fault inversions to distinguish between different possibilities for how the fault ruptured. A two-plane normal fault model offset at ridge, best represents the slip. Moment tensors reveal that the first section before the Ridge was highly complex with a large mix of moment tensors. After the jump across the Ridge, the earthquakes are solely thrust mechanism for 60 km. This indicates that the normal slip on the second half of the fault rupture probably over-slipped and the aftershocks represent the stress accommodation. There was a separate N-S trending divergent region at the location where the Tehuantepec earthquake stopped. [They] interpret this to be a break between the remaining sliver of the Caribbean plate and the North American plate…”
    #geology #risk #hazard #earthquake #Tehuantepec #Mexico #faulting #offshore #structuralgeology #megathrust #platetectonics #AI #machinelearning #model #modeling #seismic #seismology #GulfofTehuantepec #spatial #spatialanalysis #rupture #impacts #thrust #normalfaulting #aftershocks

    #aftershocks #normalfaulting #thrust #impacts #rupture #spatialanalysis
  2. 💧🌏 Greg Cocks @[email protected] ·

    Mw 8.2 Tehuantepec, Mexico Earthquake Rupture Segmentation And A Plate Boundary Revealed By A Relocated Machine Learning Based Aftershock Catalog
    --
    doi.org/10.22541/essoar.150096 <-- shared paper
    --
    science.org/content/article/un <-- shared 2017 technical article
    --
    H/T @Allen Husker | Research Professor and Manager of the Southern California Seismic Network
    “The 2017 Mw8.2 Tehuantepec earthquake is the largest instrumentally recorded normal faulting earthquake in Mexico. It occurred offshore on a reactivated outer rise fault within the Tehuantepec megathrust seismic gap that is within the undefined intersection of the North American & Caribbean & Cocos plates. [The authors] analyze[d] a relocated machine learning generated aftershock catalog that used data from temporary and permanent seismic stations around the Gulf of Tehuantepec to further interpret the rupture process of this earthquake. Similar to other results, [they found] that the earthquake initiated 100 km offshore, running northwest 90 km into the intersection. [Their] findings then show that the rupture jumped 10 km inland as it crossed the trench-perpendicular Tehuantepec Ridge and continued another 60 km before stopping. [They] used finite fault inversions to distinguish between different possibilities for how the fault ruptured. A two-plane normal fault model offset at ridge, best represents the slip. Moment tensors reveal that the first section before the Ridge was highly complex with a large mix of moment tensors. After the jump across the Ridge, the earthquakes are solely thrust mechanism for 60 km. This indicates that the normal slip on the second half of the fault rupture probably over-slipped and the aftershocks represent the stress accommodation. There was a separate N-S trending divergent region at the location where the Tehuantepec earthquake stopped. [They] interpret this to be a break between the remaining sliver of the Caribbean plate and the North American plate…”
    #geology #risk #hazard #earthquake #Tehuantepec #Mexico #faulting #offshore #structuralgeology #megathrust #platetectonics #AI #machinelearning #model #modeling #seismic #seismology #GulfofTehuantepec #spatial #spatialanalysis #rupture #impacts #thrust #normalfaulting #aftershocks

    #geology #risk #hazard #earthquake #tehuantepec #mexico
  3. 💧🌏 Greg Cocks @[email protected] ·

    Mw 8.2 Tehuantepec, Mexico Earthquake Rupture Segmentation And A Plate Boundary Revealed By A Relocated Machine Learning Based Aftershock Catalog
    --
    doi.org/10.22541/essoar.150096 <-- shared paper
    --
    science.org/content/article/un <-- shared 2017 technical article
    --
    H/T @Allen Husker | Research Professor and Manager of the Southern California Seismic Network
    “The 2017 Mw8.2 Tehuantepec earthquake is the largest instrumentally recorded normal faulting earthquake in Mexico. It occurred offshore on a reactivated outer rise fault within the Tehuantepec megathrust seismic gap that is within the undefined intersection of the North American & Caribbean & Cocos plates. [The authors] analyze[d] a relocated machine learning generated aftershock catalog that used data from temporary and permanent seismic stations around the Gulf of Tehuantepec to further interpret the rupture process of this earthquake. Similar to other results, [they found] that the earthquake initiated 100 km offshore, running northwest 90 km into the intersection. [Their] findings then show that the rupture jumped 10 km inland as it crossed the trench-perpendicular Tehuantepec Ridge and continued another 60 km before stopping. [They] used finite fault inversions to distinguish between different possibilities for how the fault ruptured. A two-plane normal fault model offset at ridge, best represents the slip. Moment tensors reveal that the first section before the Ridge was highly complex with a large mix of moment tensors. After the jump across the Ridge, the earthquakes are solely thrust mechanism for 60 km. This indicates that the normal slip on the second half of the fault rupture probably over-slipped and the aftershocks represent the stress accommodation. There was a separate N-S trending divergent region at the location where the Tehuantepec earthquake stopped. [They] interpret this to be a break between the remaining sliver of the Caribbean plate and the North American plate…”
    #geology #risk #hazard #earthquake #Tehuantepec #Mexico #faulting #offshore #structuralgeology #megathrust #platetectonics #AI #machinelearning #model #modeling #seismic #seismology #GulfofTehuantepec #spatial #spatialanalysis #rupture #impacts #thrust #normalfaulting #aftershocks

    #geology #risk #hazard #earthquake #tehuantepec #mexico
  4. 💧🌏 Greg Cocks @GregCocks ·

    Mw 8.2 Tehuantepec, Mexico Earthquake Rupture Segmentation And A Plate Boundary Revealed By A Relocated Machine Learning Based Aftershock Catalog
    --
    doi.org/10.22541/essoar.150096 <-- shared paper
    --
    science.org/content/article/un <-- shared 2017 technical article
    --
    H/T @Allen Husker | Research Professor and Manager of the Southern California Seismic Network
    “The 2017 Mw8.2 Tehuantepec earthquake is the largest instrumentally recorded normal faulting earthquake in Mexico. It occurred offshore on a reactivated outer rise fault within the Tehuantepec megathrust seismic gap that is within the undefined intersection of the North American & Caribbean & Cocos plates. [The authors] analyze[d] a relocated machine learning generated aftershock catalog that used data from temporary and permanent seismic stations around the Gulf of Tehuantepec to further interpret the rupture process of this earthquake. Similar to other results, [they found] that the earthquake initiated 100 km offshore, running northwest 90 km into the intersection. [Their] findings then show that the rupture jumped 10 km inland as it crossed the trench-perpendicular Tehuantepec Ridge and continued another 60 km before stopping. [They] used finite fault inversions to distinguish between different possibilities for how the fault ruptured. A two-plane normal fault model offset at ridge, best represents the slip. Moment tensors reveal that the first section before the Ridge was highly complex with a large mix of moment tensors. After the jump across the Ridge, the earthquakes are solely thrust mechanism for 60 km. This indicates that the normal slip on the second half of the fault rupture probably over-slipped and the aftershocks represent the stress accommodation. There was a separate N-S trending divergent region at the location where the Tehuantepec earthquake stopped. [They] interpret this to be a break between the remaining sliver of the Caribbean plate and the North American plate…”

    #geology #risk #hazard #earthquake #tehuantepec #mexico