{
  "id": "2018-09-21-university-of-washington-uw-alert-seattle-hazmat-response-all-clear",
  "slug": "university-of-washington-uw-alert-seattle-hazmat-response-all-clear-2018-09-21",
  "institution": {
    "name": "University of Washington",
    "shortName": "UW",
    "state": "WA",
    "type": "public-r1",
    "alertSystemName": "UW Alert",
    "enrollment": 50000
  },
  "incident": {
    "date": "2018-09-21",
    "type": "hazmat",
    "cleryCategory": "emergency-notification",
    "resolution": "resolved",
    "headline": "UW Alert Seattle: HazMat response (all clear)",
    "headlinePublic": "UW Alert Seattle: HazMat response (all clear)",
    "summary": "University of Washington [published an official alert](https://emergency.uw.edu/2018/09/21/uw-alert-seattle-27/) on or about 2018-09-21. Full text is preserved from the official archive.",
    "outcome": "See official notice for status.",
    "casualties": {
      "killed": 0,
      "injured": 0
    }
  },
  "alerts": [
    {
      "sequence": 1,
      "type": "initial",
      "channel": "multi-channel",
      "timestampApprox": "Published on or about 2018-09-21",
      "verbatimText": "[UPDATE at 9:25 p.m.]: Approximately 12 people were evacuated from the building and there were no injuries or medical issues reported. Seattle firefighters used air monitoring equipment and have deemed the building safe to re-enter.\n\n[ORIGINAL POST]: The Seattle Fire Department is responding to a hazardous materials incident at the Physics/Astronomy Building. A hydrogen spill in Room 009 has been contained, but the response continues and the building has been evacuated. Please avoid the area.\n\nUpdates will be posted here as more information becomes available.",
      "isVerbatimConfirmed": true,
      "sourceUrl": "https://emergency.uw.edu/2018/09/21/uw-alert-seattle-27/",
      "sourceDescription": "UW Alert",
      "annotations": [
        "Transcribed from official institutional alert archive page.",
        "Confirmed-verbatim recovery from live institutional source."
      ],
      "characterCount": 565,
      "confidence": "high"
    }
  ],
  "context": "Official UW Alert archive entry.",
  "keyFindings": [
    "Official archive page preserves complete alert text."
  ],
  "sources": [
    {
      "type": "official-archive",
      "title": "UW Alert Seattle: HazMat response (all clear)",
      "url": "https://emergency.uw.edu/2018/09/21/uw-alert-seattle-27/",
      "accessDate": "2026-07-25"
    }
  ],
  "confidence": "high",
  "tags": [
    "washington",
    "uw",
    "uw-alert",
    "hazmat"
  ],
  "dateAdded": "2026-07-25",
  "lastUpdated": "2026-07-25",
  "addedBy": "ingestion"
}