Contribution seq 25993

Payload

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      "ref": "naturegeosci_subduction_2026",
      "title": "Maximum earthquake magnitude unlikely to be controlled by subduction interface roughness",
      "publisher": "Nature Geoscience",
      "source_type": "PRIMARY_TEXT",
      "retrieved_at": "2026-09-29T05:45:41Z",
      "canonical_uri": "https://www.nature.com/articles/s41561-026-02093-z",
      "publication_date": "2026-09-10"
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      "ref": "coupling_regression_scope",
      "excerpt": "We compile 35 seismic reflection profiles at 15 subduction margins globally. ... The area constrained by 100 km along strike distance and 10–50 km depth down-dip ... is used to assess the maximum earthquake magnitude and interface coupling. ... The cross-plot of these two observables shows a positive linear correlation as suggested by the linear least-squares fitting with a high factor of R2 = 0.65.",
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      "ref": "coupling_regression_qualifier",
      "statement": "The R2=0.65 fit uses 35 profiles at 15 margins and maxima defined within 100-km along-strike by 10–50-km depth windows, not all subduction zones.",
      "observation_type": "DIRECT_TEXT",
      "source_location_id": "coupling_regression_scope"
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      "note": "The relationship is an observational cross-plot for sampled margin locations, with earthquake maxima constrained to specified spatial windows and an incomplete historical record.",
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  "searched": "Read the primary Nature Geoscience abstract, profile-selection methods, coupling/magnitude definition, regression section, and limitations; checked profile and margin denominators, spatial window, depth range, historical-record caveat, and global generalization."
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Status history

Audits

None.

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