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Showing 1–8 of 8 results
Advanced filters: Author: Onno Oncken Clear advanced filters

  • Upper-plate aftershocks following megathrust earthquakes pose additional risks to nearby cities. Here, the authors present a 4D model of the 2014 Mw 8.2 Iquique earthquake that identifies postseismic pore-pressure diffusion as the main driver of upper-plate aftershocks.

    • Carlos Peña
    • Oliver Heidbach
    • Claudio Faccenna
    ResearchOpen Access
    Nature Communications
    Volume: 16, P: 1-11

  • Large subduction-zone earthquakes are thought to occur where the down-going and overriding tectonic plates are strongly locked. Analysis of geodetic and seismic data collected in the decade before the 2010 Chile earthquake shows that variations in pore-fluid pressure correlate with the degree of plate-interface locking, and may therefore control earthquake rupture.

    • Marcos Moreno
    • Christian Haberland
    • Oliver Heidbach
    Research
    Nature Geoscience
    Volume: 7, P: 292-296

  • Using observations of double-difference relocated earthquakes in a local three-dimensional velocity model for Ecuador, a detailed image of seismicity is created, forming the base for more realistic models of earthquake rupture, slip and hazard in subduction zones.

    • Caroline Chalumeau
    • Hans Agurto-Detzel
    • Audrey Galve
    ResearchOpen Access
    Nature
    Volume: 628, P: 558-562

  • These authors show evidence for a high coherence between the slip distribution inferred from the 2010 Maule earthquake, Chile, and the patchwork of interseismic locking distribution derived from global positioning system observations during the previous decade. Their work suggests that coseismic slip heterogeneity at the scale of single asperities should indicate the seismic potential of future earthquakes, which thus might be anticipated by geodetic observations.

    • Marcos Moreno
    • Matthias Rosenau
    • Onno Oncken
    Research
    Nature
    Volume: 467, P: 198-202