Matches in SemOpenAlex for { <https://semopenalex.org/work/W4322009997> ?p ?o ?g. }
Showing items 1 to 54 of
54
with 100 items per page.
- W4322009997 abstract "Large megathrust earthquakes like the 2011 Mw 9.0 Tohoku earthquake (Japan) are followed by numerous aftershocks in the subduction zone forearc overlying the seismogenic fault. The aftershocks in the forearc can include normal-faulting events despite the thrust mechanism of the main shock. Postseismic normal faulting has been explained by stress changes induced by the coseismic stress drop along the megathrust. However, details of stress changes in the forearc and aftershock triggering mechanisms remain poorly constrained. Here we use numerical force-balance models combined with Coulomb failure analysis to show that the megathrust stress drop indeed supports normal faulting, but that forearc-wide triggering of aftershocks is feasible within a narrow range of megathrust stress-drop values and forearc stress states only. We determine this range for the Tohoku earthquake and show that the associated stress changes explain the aftershock seismicity in unprecedented detail. In particular, our analysis reveals that ~78% of the aftershocks and ~92% of the seismic moment release occurred in areas where the Tohoku earthquake caused a stress increase, and that the detailed aftershock distribution was also governed by spatial variability in fault strength and forearc topography. Our findings provide new insights into aftershock triggering and help to understand where aftershocks occur after great earthquakes at subduction zones." @default.
- W4322009997 created "2023-02-26" @default.
- W4322009997 creator A5004390590 @default.
- W4322009997 creator A5024207469 @default.
- W4322009997 creator A5030094722 @default.
- W4322009997 creator A5040861368 @default.
- W4322009997 creator A5069754150 @default.
- W4322009997 creator A5078649459 @default.
- W4322009997 date "2023-05-15" @default.
- W4322009997 modified "2023-09-29" @default.
- W4322009997 title "Megathrust stress drop as trigger of aftershock seismicity in subduction zone forearcs: Insights from the 2011 Mw 9.0 Tohoku earthquake, Japan" @default.
- W4322009997 doi "https://doi.org/10.5194/egusphere-egu23-8028" @default.
- W4322009997 hasPublicationYear "2023" @default.
- W4322009997 type Work @default.
- W4322009997 citedByCount "0" @default.
- W4322009997 crossrefType "posted-content" @default.
- W4322009997 hasAuthorship W4322009997A5004390590 @default.
- W4322009997 hasAuthorship W4322009997A5024207469 @default.
- W4322009997 hasAuthorship W4322009997A5030094722 @default.
- W4322009997 hasAuthorship W4322009997A5040861368 @default.
- W4322009997 hasAuthorship W4322009997A5069754150 @default.
- W4322009997 hasAuthorship W4322009997A5078649459 @default.
- W4322009997 hasConcept C127313418 @default.
- W4322009997 hasConcept C156801008 @default.
- W4322009997 hasConcept C165205528 @default.
- W4322009997 hasConcept C175551986 @default.
- W4322009997 hasConcept C58097730 @default.
- W4322009997 hasConcept C77928131 @default.
- W4322009997 hasConcept C83176761 @default.
- W4322009997 hasConcept C94436079 @default.
- W4322009997 hasConceptScore W4322009997C127313418 @default.
- W4322009997 hasConceptScore W4322009997C156801008 @default.
- W4322009997 hasConceptScore W4322009997C165205528 @default.
- W4322009997 hasConceptScore W4322009997C175551986 @default.
- W4322009997 hasConceptScore W4322009997C58097730 @default.
- W4322009997 hasConceptScore W4322009997C77928131 @default.
- W4322009997 hasConceptScore W4322009997C83176761 @default.
- W4322009997 hasConceptScore W4322009997C94436079 @default.
- W4322009997 hasLocation W43220099971 @default.
- W4322009997 hasOpenAccess W4322009997 @default.
- W4322009997 hasPrimaryLocation W43220099971 @default.
- W4322009997 hasRelatedWork W1545323341 @default.
- W4322009997 hasRelatedWork W1900036548 @default.
- W4322009997 hasRelatedWork W1972932088 @default.
- W4322009997 hasRelatedWork W2013280151 @default.
- W4322009997 hasRelatedWork W2047671768 @default.
- W4322009997 hasRelatedWork W2177578780 @default.
- W4322009997 hasRelatedWork W3093509342 @default.
- W4322009997 hasRelatedWork W3093999978 @default.
- W4322009997 hasRelatedWork W4322009997 @default.
- W4322009997 hasRelatedWork W785961321 @default.
- W4322009997 isParatext "false" @default.
- W4322009997 isRetracted "false" @default.
- W4322009997 workType "article" @default.