{
  "id": "2023-10-30-oregon-state-university-11th-monroe-explosion",
  "slug": "oregon-state-university-11th-monroe-explosion-2023-10-30",
  "institution": {
    "name": "Oregon State University",
    "shortName": "Oregon State",
    "state": "OR",
    "type": "public-r1",
    "alertSystemName": "OSU Alert",
    "enrollment": 34000
  },
  "incident": {
    "date": "2023-10-30",
    "type": "explosion",
    "cleryCategory": "emergency-notification",
    "resolution": "all-clear",
    "headline": "Alert explosion at 11th St and Monroe Ave",
    "headlinePublic": "Alert explosion at 11th St and Monroe Ave",
    "summary": "Oregon State [Urgent Corvallis OSU Alert](https://x.com/OregonState/status/1719111184790794410) ordered avoid-area for an explosion at 11th St and Monroe Ave, [updated that there was no current threat](https://x.com/OregonState/status/1719111997403570333), then [issued ALL CLEAR](https://x.com/OregonState/status/1719140607657197844).",
    "outcome": "ALL CLEAR issued; vehicles trapped in parking lot directed to call 737-3010.",
    "casualties": {
      "killed": 0,
      "injured": 0
    }
  },
  "alerts": [
    {
      "sequence": 1,
      "type": "initial",
      "timestamp": "2023-10-30T14:57:00-07:00",
      "channel": "twitter-x",
      "verbatimText": "Urgent Corvallis OSU Alert: Explosion Avoid area at 11th St and Monroe Ave. Follow instructions from authorities. Call 911 if injured.",
      "isVerbatimConfirmed": true,
      "sourceUrl": "https://x.com/OregonState/status/1719111184790794410",
      "sourceDescription": "@OregonState on X (official university alerts)",
      "annotations": [
        "Full text from official @OregonState status 1719111184790794410",
        "EXPANSION continuation batch 497 thread-completion: walked @OregonState self-reply thread + timeline ±48h; Update and ALL CLEAR appended as seq 2-3."
      ],
      "characterCount": 134
    },
    {
      "sequence": 2,
      "type": "update",
      "timestamp": "2023-10-30T15:00:14-07:00",
      "channel": "twitter-x",
      "verbatimText": "Update: There is no current threat to the community. Stay out of the area so responders can investigate.",
      "isVerbatimConfirmed": true,
      "confidence": "high",
      "sourceUrl": "https://x.com/OregonState/status/1719111997403570333",
      "sourceDescription": "@OregonState self-reply residual",
      "annotations": [
        "Dual independent X fetch match 2026-08-03 (keyword_search family + thread_fetch). SPN 523.",
        "EXPANSION continuation batch 497 thread-completion sweep Tier 1."
      ],
      "characterCount": 104
    },
    {
      "sequence": 3,
      "type": "all-clear",
      "timestamp": "2023-10-30T16:53:55-07:00",
      "channel": "twitter-x",
      "verbatimText": "ALL CLEAR. If you have a vehicle trapped in the parking lot, contact 737-3010 for assistance.",
      "isVerbatimConfirmed": true,
      "confidence": "high",
      "sourceUrl": "https://x.com/OregonState/status/1719140607657197844",
      "sourceDescription": "@OregonState self-reply residual",
      "annotations": [
        "Dual independent X fetch match 2026-08-03 (keyword_search family + thread_fetch). SPN 523.",
        "EXPANSION continuation batch 497 thread-completion sweep Tier 1."
      ],
      "characterCount": 93
    }
  ],
  "context": "Oregon State University transmitted campus operational and emergency notices via the official @OregonState X account.",
  "keyFindings": [
    "Complete official short-form weather/emergency text",
    "Campus operational change or avoid-area guidance"
  ],
  "sources": [
    {
      "title": "@OregonState initial",
      "url": "https://x.com/OregonState/status/1719111184790794410",
      "type": "official-social",
      "accessDate": "2026-08-03",
      "archiveUrl": null,
      "archiveNotes": "SPN 523"
    },
    {
      "title": "@OregonState update",
      "url": "https://x.com/OregonState/status/1719111997403570333",
      "type": "official-social",
      "accessDate": "2026-08-03",
      "archiveUrl": null,
      "archiveNotes": "SPN 523"
    },
    {
      "title": "@OregonState all-clear",
      "url": "https://x.com/OregonState/status/1719140607657197844",
      "type": "official-social",
      "accessDate": "2026-08-03",
      "archiveUrl": null,
      "archiveNotes": "SPN 523"
    },
    {
      "title": "@OregonState",
      "url": "https://x.com/OregonState",
      "type": "official-social"
    },
    {
      "title": "OSU Alerts",
      "url": "https://oregonstate.edu/alerts",
      "type": "official-archive"
    }
  ],
  "confidence": "high",
  "tags": [
    "explosion",
    "osu-alert",
    "oregon-state"
  ],
  "dateAdded": "2026-07-21",
  "lastUpdated": "2026-08-03",
  "addedBy": "ingestion"
}