{
  "id": "2025-09-11-umass-boston-false-shooting-report",
  "slug": "umass-boston-false-shooting-report-2025-09-11",
  "institution": {
    "name": "University of Massachusetts Boston",
    "shortName": "UMass Boston",
    "state": "MA",
    "type": "public-r1",
    "alertSystemName": "UMass Boston Alert",
    "enrollment": 16000
  },
  "incident": {
    "date": "2025-09-11",
    "type": "swatting",
    "cleryCategory": "emergency-notification",
    "resolution": "confirmed-hoax",
    "headline": "False report of shots fired brings a multi-agency response and campus lockdown",
    "headlinePublic": "False report of shots fired brings a multi-agency response and campus lockdown",
    "summary": "On September 11, 2025, a single 911 call reporting shots fired near [UMass Boston's campus](https://dorchesterpost.com/2025/09/11/umass-boston-issues-emergency-alert-amid-active-shooter-report/) triggered a massive multi-agency police response, campus lockdown, and evacuation. Boston police confirmed there had been [no shots fired and no firearms found on campus](https://www.wbur.org/news/2025/09/12/umass-boston-police-response-shoots-fired-report-clear). The all-clear was issued at 5:11 PM EDT after a nearly 90-minute investigation.",
    "outcome": "Police found no evidence of gunfire or firearms on campus. No injuries were reported. UMass Boston cancelled all remaining classes and activities for the evening. The incident occurred amid a nationwide wave of swatting hoaxes targeting colleges and universities.",
    "casualties": {
      "killed": 0,
      "injured": 0
    }
  },
  "alerts": [
    {
      "sequence": 1,
      "type": "initial",
      "timestamp": "2025-09-11T15:40:00-04:00",
      "channel": "twitter-x",
      "verbatimText": "UMass Boston Alert: Public Safety threat in/near Residence Hall East Building. Avoid area. More information to come.",
      "isVerbatimConfirmed": true,
      "sourceUrl": "https://x.com/UMassBoston/status/1966230571186573757",
      "sourceDescription": "Verbatim from official @UMassBoston post on X, September 11, 2025",
      "annotations": [
        "First in a series of rapidly escalating alerts posted to UMass Boston's X account beginning shortly after 3:40 PM EDT",
        "Boston police received the 911 call at approximately 3:43 PM EDT",
        "The 'public safety threat' framing was deliberately less specific than 'active shooter,' a calibration choice during the unverified initial reports"
      ],
      "characterCount": 116
    },
    {
      "sequence": 2,
      "type": "update",
      "timestamp": "2025-09-11T16:01:00-04:00",
      "channel": "twitter-x",
      "verbatimText": "UMass Boston Alert: Police incident in/near Campus Center. Avoid area. More information to come.",
      "isVerbatimConfirmed": true,
      "sourceUrl": "https://x.com/UMassBoston/status/1966233802964910511",
      "sourceDescription": "Verbatim from the official @UMassBoston post on X, September 11, 2025",
      "annotations": [
        "The alert footprint expanded from Residence Hall East to also flag the Campus Center as the perceived threat moved across campus",
        "A separate alert flagging the Edward M. Kennedy Institute (EMKI) used the same template language",
        "Students in residence halls received text alerts around 4:00 PM EDT telling dorm residents to stay in their rooms and not answer doors for anyone except police"
      ],
      "characterCount": 96
    },
    {
      "sequence": 3,
      "type": "update",
      "timestamp": "2025-09-11T16:55:00-04:00",
      "channel": "sms",
      "verbatimText": "UMB Emergency Alert: Classes and activities are canceled for the evening. Police investigation ongoing. More information to follow.",
      "isVerbatimConfirmed": true,
      "sourceUrl": "https://x.com/UMassBoston/status/1966244152087077325",
      "sourceDescription": "Verbatim from the official @UMassBoston post on X, September 11, 2025",
      "annotations": [
        "This alert cancelled all evening classes and activities while the investigation continued",
        "Boston College High School, located nearby, was also placed on lockdown and issued its own all-clear around 4:50 PM EDT",
        "The system identifier shifted from 'UMass Boston Alert' to 'UMB Emergency Alert,' a template the university uses for all-campus directives"
      ],
      "characterCount": 131
    },
    {
      "sequence": 4,
      "type": "all-clear",
      "timestamp": "2025-09-11T17:11:00-04:00",
      "channel": "twitter-x",
      "verbatimText": "UMB Emergency Alert: Police have reported the incident on campus all clear. There is no ongoing threat to the community.",
      "isVerbatimConfirmed": true,
      "sourceUrl": "https://x.com/UMassBoston/status/1966248243567747143",
      "sourceDescription": "Verbatim from official @UMassBoston post on X, September 11, 2025; the same all-clear was also quoted in Dorchester Post, Boston 25, NBC Boston, and Patch coverage",
      "annotations": [
        "The all-clear came approximately 90 minutes after the initial alert",
        "Chancellor Marcelo Suarez-Orozco confirmed that police found no evidence of gunfire on campus or in any adjacent buildings",
        "The phrasing 'reported the incident on campus all clear' is unusually formal for a template all-clear, reflecting institutional caution after a mass-evacuation event"
      ],
      "characterCount": 120
    }
  ],
  "context": "On the afternoon of September 11, 2025, Boston police received a [single 911 call reporting shots fired](https://www.wbur.org/news/2025/09/12/umass-boston-police-response-shoots-fired-report-clear) near UMass Boston's campus at approximately 3:43 PM EDT. UMass Boston began issuing a series of escalating alerts starting at 3:40 PM EDT, first reporting a police incident near the [Edward M. Kennedy Institute](https://dorchesterpost.com/2025/09/11/umass-boston-issues-emergency-alert-amid-active-shooter-report/), then expanding to the Residence Hall East Building and Campus Center. By 4:00 PM EDT, students in dorms received text messages telling them to stay in their rooms and not answer doors for anyone except police. A [massive multi-agency police response](https://www.nbcboston.com/news/local/umass-boston-public-safety-incident-thursday/3807283/) descended on the campus at 240 Morrissey Boulevard in Dorchester. Boston College High School, located nearby, also went into lockdown. An officer already patrolling the area had neither heard nor seen anything suspicious, and the university's [gunshot detection system had not triggered](https://www.wgbh.org/news/local/2025-09-11/all-clear-at-umass-boston-campus-no-confirmed-shots-fired). By 5:11 PM EDT, police issued the all-clear after finding no evidence of gunfire, no firearms, and no injuries. Chancellor Marcelo Suarez-Orozco confirmed the incident was a false alarm. UMass Boston [cancelled all evening classes and activities](https://www.boston.com/news/local-news/2025/09/11/umass-boston-students-told-to-stay-in-their-dorms-amid-public-safety-threat/). The incident occurred as approximately [45 U.S. colleges and universities had been targeted by similar hoaxes](https://www.campussafetymagazine.com/news/surge-in-swatting-incidents-u-s-colleges-continue-to-be-targeted-by-false-active-shooter-reports/173172/) during the fall 2025 semester.",
  "keyFindings": [
    "A single 911 call triggered a massive multi-agency response despite no corroborating evidence, demonstrating the resource cost of swatting",
    "UMass Boston's gunshot detection system provided a rapid counter-indicator, helping police confirm the false alarm",
    "The incident occurred on September 11, a date with heightened security sensitivity, potentially amplifying the emergency response"
  ],
  "sources": [
    {
      "title": "All clear at UMass Boston campus after reports of shots fired (WBUR)",
      "url": "https://www.wbur.org/news/2025/09/12/umass-boston-police-response-shoots-fired-report-clear",
      "type": "local-media"
    },
    {
      "title": "UMass Boston issues all clear after unconfirmed shooting report (The Dorchester Post)",
      "url": "https://dorchesterpost.com/2025/09/11/umass-boston-issues-emergency-alert-amid-active-shooter-report/",
      "type": "local-media"
    },
    {
      "title": "All clear at UMass Boston after unconfirmed report of shooting (NBC Boston)",
      "url": "https://www.nbcboston.com/news/local/umass-boston-public-safety-incident-thursday/3807283/",
      "type": "local-media"
    },
    {
      "title": "All clear at UMass Boston campus; no confirmed shots fired (GBH)",
      "url": "https://www.wgbh.org/news/local/2025-09-11/all-clear-at-umass-boston-campus-no-confirmed-shots-fired",
      "type": "local-media"
    },
    {
      "title": "Surge in Swatting Incidents: Number of Hoax Threats Continues to Grow (Campus Safety Magazine)",
      "url": "https://www.campussafetymagazine.com/news/surge-in-swatting-incidents-u-s-colleges-continue-to-be-targeted-by-false-active-shooter-reports/173172/",
      "type": "other"
    },
    {
      "title": "Verbatim from official @UMassBoston post on X, September 11, 2025",
      "url": "https://x.com/UMassBoston/status/1966230571186573757",
      "type": "official-archive"
    },
    {
      "title": "Verbatim from the official @UMassBoston post on X, September 11, 2025",
      "url": "https://x.com/UMassBoston/status/1966233802964910511",
      "type": "official-archive"
    },
    {
      "title": "Verbatim from the official @UMassBoston post on X, September 11, 2025",
      "url": "https://x.com/UMassBoston/status/1966244152087077325",
      "type": "official-archive"
    },
    {
      "title": "Verbatim from official @UMassBoston post on X, September 11, 2025; the same all-clear was also quoted in Dorchester Post",
      "url": "https://x.com/UMassBoston/status/1966248243567747143",
      "type": "official-archive"
    }
  ],
  "confidence": "medium",
  "tags": [
    "swatting",
    "false-alarm",
    "massachusetts",
    "boston",
    "multi-agency-response",
    "campus-lockdown",
    "gunshot-detection",
    "public-university",
    "verbatim-from-official-x"
  ],
  "dateAdded": "2026-05-03",
  "lastUpdated": "2026-07-16",
  "addedBy": "ingestion"
}