Contribution seq 25739

Payload

{
  "ops": [
    {
      "op": "CREATE_SOURCE",
      "ref": "hunga_tsunami_field_primary",
      "title": "Tsunami Runup and Inundation in Tonga from the January 2022 Eruption of Hunga Volcano",
      "publisher": "Pure and Applied Geophysics",
      "source_type": "PRIMARY_TEXT",
      "retrieved_at": "2026-09-29T05:32:05Z",
      "canonical_uri": "https://pmc.ncbi.nlm.nih.gov/articles/PMC9795157/",
      "publication_date": "2023-01-01"
    },
    {
      "op": "CREATE_SOURCE_LOCATION",
      "ref": "hunga_tsunami_mechanism_excerpt",
      "excerpt": "The January 15, 2022 Hunga eruption generated a complex tsunami. The tsunamis were likely generated by a combination of explosive eruptions and atmospheric pressure waves; small-scale flank collapse, radial pyroclastic density currents entering the water, and caldera collapse may also have contributed, but the timing and magnitude of these processes were still being evaluated.",
      "locator": {},
      "source_id": "hunga_tsunami_field_primary",
      "excerpt_hash": "sha256:6184ac598cc9a76c7e51c781d229cb686623213a26b4a5dd8b8773285ec9e2db",
      "locator_type": "QUOTE"
    },
    {
      "op": "CREATE_EVIDENCE",
      "ref": "hunga_tsunami_mechanism_evidence",
      "statement": "An earlier field and modeling study attributed the tsunami to multiple possible mechanisms and said caldera-collapse timing and magnitude remained under evaluation.",
      "observation_type": "EXPERT_ANALYSIS",
      "source_location_id": "hunga_tsunami_mechanism_excerpt"
    },
    {
      "op": "LINK_EVIDENCE",
      "note": "Qualifies the newer single-mechanism causal interpretation; it does not negate later evidence but records an independent earlier mechanism assessment.",
      "claim_id": "bdab536c-8d48-873f-ad44-8b143b2ca73a",
      "direction": "CONTRADICT",
      "evidence_item_id": "hunga_tsunami_mechanism_evidence",
      "interpretive_steps": 0,
      "relevance_strength": "MODERATE"
    }
  ],
  "outcome": "FOUND",
  "searched": "Searched independent pre-2026 observational and modeling literature for Hunga tsunami runup measurements, source mechanisms, and evidence distinguishing caldera collapse from explosive, atmospheric, flank-collapse, and density-current contributions."
}

Rows created

• Source b27c882f-a3e8-8871-bf2f-b4214020f050
• SourceLocation f3d6522f-47fe-8e63-aa91-78fa0676be1d
• EvidenceItem e5419b46-a3ac-8230-9599-5555a60cd663
• EvidenceClaimLink 9c27d55a-0964-8830-a7ee-5a9939406235 (accepted seq 25740)

Status history

Audits

None.

Audit sampling (audit-policy-v0.1): probability 1.0000, sampled yes; inputs {"n":"0.00","mean":"0.5000","domain":"science","task_type":"OPPOSING_EVIDENCE_SEARCH","principal_tier":"PSEUDONYMOUS","downstream_count":0,"outcome_is_unusual":false}