Campus Alert Archive
UC Berkeley

Attempted assault with rocks reported as a possible anti-Asian hate crime

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CAaggravated assaulttimely warningmedium confidence
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Under Investigation

An unknown suspect attempted to assault a victim using rocks at the intersection of Durant Avenue and Ellsworth Street near UC Berkeley at 8:45 AM PDT on September 19, 2022. Based on initial information, UCPD believed the attack was anti-Asian hate-motivated and issued a WarnMe alert. The incident was not reported to police until 3:25 PM PDT that day -- nearly seven hours after it occurred -- delaying the timely warning.

Alerts
1
Response
min
Killed
—
Injured
—
Institution
University of California, Berkeley
Public R1 · CA
All UC Berkeley cases →
~45,000 studentsWarnMe
Official alert policy
Read when and how UC Berkeley says it will use WarnMe: summarized, quoted, and analyzed.
Documented Timeline

Alert Sequence

1 message in sequence · 1 verified verbatim

INITIAL ALERTEmail
Verified verbatimBerkeley Scanner and Daily Californian reporting that quote UCPD's WarnMe alert verbatim202 chars
An unknown individual attempted to assault a victim using several rocks. Based on information provided in the initial report of this crime, this crime was believed to have been an anti-Asian hate crime.
These are the two key sentences UCPD wrote in the WarnMe alert as quoted by Berkeley Scanner; surrounding boilerplate (timestamp/contact info) is omitted because the news sources did not preserve it verbatim
WarnMe categorized the incident as a possible anti-Asian hate crime explicitly -- a more direct framing than many peer institutions used during the pandemic-era surge
The incident occurred at 8:45 AM PDT but was not reported until 3:25 PM PDT via an anonymous tip; the Berkeley Scanner reported the delay complicated the investigation
Durant Avenue at Ellsworth is in the heart of UC Berkeley's Telegraph Avenue commercial district, frequented by students daily
Message elements

How the first alert is built

To check this alert, Claude (an AI) read it in full 25 separate times, independently. Each read decided whether the message answers each of the six questions and gave a short reason. A final reviewer then weighed all 25 and wrote the plain-English verdict you see when you open a row. The score (for example 22/25) is how many reads agreed; the 25 individual reads are tucked underneath if you want to check them.

An unknown individual attempted to assault a victim using several rocks. Based on information provided in the initial report of this crime, this crime was believed to have been an anti-Asian hate crime.

  • Sourceabsent0/25

    Final assessment

    All 25 reads agree the element is absent: no sender, agency, or branded signature identifies who issued the message.

    Who is sending the alert and who is responding. People act faster on a message from a clearly identifiable, credible sender, such as a named department, the police, or a branded alert system, than on an anonymous notice. A branded signature counts.

    See all 25 individual reads
    1. absent: No sender, agency, or branded signature identifies who issued this message.
    2. absent: No sender, brand, or agency identifies who issued this report.
    3. absent: No sender, agency, or branded signature identifies the issuer.
    4. absent: No sender tag, university, or agency identifies who issues the message.
    5. absent: No sender name, agency, or branded signature appears in the text.
    6. absent: No sender, agency, or branded signature identifies who issued this report.
    7. absent: No branded signature, sender tag, or named authority identifies who is sending the message.
    8. absent: No sender name, branded tag, or issuing authority appears in the text.
    9. absent: No branded signature, agency, or institution identifies the sender.
    10. absent: No sender, branded signature, or named authority appears in the text.
    11. absent: No sender, agency, or branded signature appears in the text.
    12. absent: No sender, branded tag, or authority is identified in the text.
    13. absent: No sender, university name, or agency is identified in the message.
    14. absent: No sender tag, agency, or institution identifies itself in the text.
    15. absent: No sender, agency, or branded signature is named in this message.
    16. absent: No sender, agency, or branded signature identifies who issued this alert.
    17. absent: No branded signature, agency, or institution names itself as sender.
    18. absent: No sender, signature, or issuing authority is named in the text.
    19. absent: No sender, branded tag, or named authority appears in the excerpt.
    20. absent: No sender, university, or agency is named in the text.
    21. absent: No sender, authority, or branded signature is named in the text.
    22. absent: No sender tag, agency, or institution names itself in the text.
    23. absent: No sender, signature, or authority is identified in the text.
    24. absent: No sender tag, agency, or branded signature identifies who issued this message.
    25. absent: No sender, university, or agency is named in the text.
  • Hazardpresent25/25

    Final assessment

    All 25 reads agree the element is present: it names an attempted assault using rocks described as an anti-Asian hate crime, a specific hazard.

    What the threat actually is. A complete warning names the specific danger, such as a shooter, a fire, a tornado, or a gas leak, rather than a vague emergency, because people decide what to do based on what they are facing.

    See all 25 individual reads
    1. present: It names an attempted assault "using several rocks" as an "anti-Asian hate crime".
    2. present: It describes an attempted assault "using several rocks", a hate crime.
    3. present: It names an attempted assault "using several rocks", an anti-Asian hate crime.
    4. present: It names an attempted assault "using several rocks", a hate crime.
    5. present: It names an attempt to "assault a victim using several rocks" as an "anti-Asian hate crime", a specific hazard.
    6. present: It names an attempted assault "using several rocks" believed to be a hate crime, a specific hazard.
    7. present: It names an attempted assault "using several rocks" believed an "anti-Asian hate crime", a specific threat.
    8. present: It names an attempted assault "using several rocks" believed an anti-Asian hate crime.
    9. present: It names an attempted "assault" and "anti-Asian hate crime", a specific threat.
    10. present: It names an attempted assault and "anti-Asian hate crime", a specific threat.
    11. present: It names an attempted assault "using several rocks", an anti-Asian hate crime, a specific threat.
    12. present: It names an attempted assault "using several rocks", believed an "anti-Asian hate crime".
    13. present: It names an attempt to "assault a victim using several rocks", an anti-Asian hate crime.
    14. present: It names an attempt "to assault a victim using several rocks" as an anti-Asian hate crime, a specific crime.
    15. present: It names an attempted "assault" and "anti-Asian hate crime", a specific threat.
    16. present: It names an assault "using several rocks" believed an "anti-Asian hate crime", a specific crime.
    17. present: It names an attempted "assault" with rocks, a hate crime, a specific threat.
    18. present: It names an assault "using several rocks", a specific crime hazard.
    19. present: It names an attempted assault using rocks, an "anti-Asian hate crime", a specific threat.
    20. present: It names an attempt "to assault a victim using several rocks", an anti-Asian hate crime.
    21. present: It describes an attempt "to assault a victim using several rocks", a crime.
    22. present: Names an attempt to "assault a victim using several rocks", an "anti-Asian hate crime".
    23. present: Names an attempted assault "using several rocks", an anti-Asian hate crime.
    24. present: It names an attempted assault "using several rocks" as an "anti-Asian hate crime", a specific threat.
    25. present: It describes an attempt to "assault a victim using several rocks", an anti-Asian hate crime.
  • Locationabsent0/25

    Final assessment

    All 25 reads agree the element is absent: no building, street, area, or campus reference appears.

    Where the threat is. Saying whether danger is in a specific building, a part of campus, or area-wide lets people judge their own proximity and choose a safe direction. Without a where, a warning is hard to act on precisely.

    See all 25 individual reads
    1. absent: No building, street, area, or "campus" is mentioned.
    2. absent: No building, area, or place is mentioned.
    3. absent: No building, area, or place is mentioned in this text.
    4. absent: No building, area, or place is named.
    5. absent: No building, area, or place is mentioned.
    6. absent: It identifies no building, area, or campus location.
    7. absent: It gives no building, area, or place.
    8. absent: It identifies no building, area, or campus.
    9. absent: No building, place, or area is named.
    10. absent: It names no building, street, area, or "campus".
    11. absent: No building, area, or place is identified in this text.
    12. absent: No location is given in this excerpt.
    13. absent: No building, street, area, or campus reference appears.
    14. absent: No building, area, or campus is named in this text.
    15. absent: No building, area, or place is mentioned in this text.
    16. absent: No building, area, or campus location is mentioned in the text.
    17. absent: No building, street, area, or "campus" reference is given.
    18. absent: It states no building, area, or place in the text.
    19. absent: It states no building, area, or location in this excerpt.
    20. absent: No building, area, or campus is stated.
    21. absent: No building, street, or place is named in the message.
    22. absent: No place, building, or "campus" reference appears.
    23. absent: No place or location is stated in the text.
    24. absent: No building, area, or "campus" location is mentioned in the text.
    25. absent: No building, area, or campus location is stated.
  • Guidanceabsent0/25

    Final assessment

    All 25 reads agree the element is absent: it narrates the incident but directs no protective action to recipients.

    The protective action to take. A clear, specific instruction, such as shelter in place, evacuate, avoid the area, or run-hide-fight, drives faster and more correct protective behavior than describing the threat alone.

    See all 25 individual reads
    1. absent: It narrates the incident but gives recipients no protective action.
    2. absent: It describes the crime but gives recipients no protective action.
    3. absent: It describes the crime but gives recipients no protective instruction.
    4. absent: No protective action is directed at recipients, only a narrative.
    5. absent: It describes the incident but gives recipients no protective instruction.
    6. absent: It describes the crime but gives recipients no protective action.
    7. absent: It narrates the crime but gives recipients no protective action.
    8. absent: It narrates the incident and gives recipients no protective action.
    9. absent: No protective action is directed at recipients; it only narrates.
    10. absent: It describes the crime but gives recipients no protective action.
    11. absent: It narrates the crime but gives recipients no protective action.
    12. absent: No protective action is directed to recipients; it only narrates the crime.
    13. absent: It describes the crime but gives recipients no protective action.
    14. absent: It describes the crime but gives recipients no protective-action instruction.
    15. absent: It narrates the incident but gives recipients no protective instruction.
    16. absent: It narrates the crime but gives recipients no protective action.
    17. absent: It describes the crime but gives no protective action instruction.
    18. absent: It describes the incident but gives recipients no protective action.
    19. absent: It describes the crime but gives recipients no protective instruction.
    20. absent: It describes the crime but gives recipients no protective action.
    21. absent: It recounts the incident but gives recipients no protective instruction.
    22. absent: Describes the crime but gives no protective action.
    23. absent: No protective action is instructed; it is a narrative report.
    24. absent: It describes the past crime but gives recipients no protective action instruction.
    25. absent: No protective instruction is given to recipients.
  • Timeabsent0/25

    Final assessment

    All 25 reads agree the element is absent: no clock time, date, or recency cue appears.

    When the message applies. A timestamp, the word now or immediately, or a phrase like until further notice tells the reader whether the danger is current and how quickly to act.

    See all 25 individual reads
    1. absent: No clock time, date, or recency cue appears.
    2. absent: No clock time, date, or recency cue appears.
    3. absent: No clock time, date, or recency cue appears in the text.
    4. absent: No clock time, date, or recency cue appears.
    5. absent: No clock time, date, or recency cue appears in the text.
    6. absent: No clock time, date, or recency cue appears in the text.
    7. absent: No clock time, date, or recency cue appears.
    8. absent: No clock time, date, or recency cue appears in the text.
    9. absent: No clock time, date, or recency cue appears.
    10. absent: No clock time, date, or recency cue appears in the text.
    11. absent: No clock time, date, or recency cue appears.
    12. absent: No clock time, date, or recency cue appears.
    13. absent: No clock time, date, or recency cue appears in the text.
    14. absent: No clock time, date, or recency cue appears.
    15. absent: No clock time, date, or recency cue appears in the text.
    16. absent: No clock time, date, or recency cue appears in the text.
    17. absent: No clock time, date, or recency cue appears.
    18. absent: No clock time, date, or recency cue appears in the text.
    19. absent: No clock time, date, or recency cue appears.
    20. absent: No clock time, date, or recency cue appears.
    21. absent: No clock time, date, or recency cue appears in the message.
    22. absent: No clock time, date, or recency cue appears.
    23. absent: No clock time, date, or recency cue appears in the text.
    24. absent: No clock time, date, or recency cue appears in the text.
    25. absent: No clock time, date, or recency cue appears.
  • Impactpresent25/25

    Final assessment

    Present, unanimous. Reads agree the alert describes a hate-crime assault, a stated harm to a person.

    What the hazard could do to the people in its path. Beyond naming the threat, a complete warning conveys its potential consequences or severity, such as that a tornado can level buildings or that a leak could be explosive, so recipients grasp how much danger they are in. Research on warning message content finds that a concrete impact statement helps people personalize their risk and act sooner.

    See all 25 individual reads
    1. present: Reports an attempted assault using rocks believed to be an anti-Asian hate crime, a stated attempt to harm.
    2. present: Describes an attempted assault using rocks as an anti-Asian hate crime, a stated attempted harm to a victim.
    3. present: Describes an attempted assault with rocks in a hate crime, conveying a threat of harm to the victim.
    4. present: It reports an attempted assault using rocks believed to be an anti-Asian hate crime, a stated harm and danger.
    5. present: States an individual attempted to assault a victim using rocks, conveying a clear threat of harm.
    6. present: Describes an attempted assault using rocks classified as a hate crime, conveying harm to a victim.
    7. present: It reports an attempted assault using rocks framed as a hate crime, conveying threatened harm.
    8. present: It reports an attempted assault using rocks as a believed hate crime, conveying harm to a victim.
    9. present: Describes an attempted assault using rocks as a hate crime, a stated harmful act against a victim.
    10. present: Describes an attempt to assault a victim using rocks, a stated attempted harm.
    11. present: It reports an attempted assault using rocks, a stated attempt to harm a victim.
    12. present: It reports an individual attempted to assault a victim using several rocks, conveying a violent harmful act.
    13. present: It reports an attempted assault using rocks believed to be an anti-Asian hate crime, a stated harm.
    14. present: It reports an attempted assault using rocks, a stated attempt to cause physical harm.
    15. present: Describes an attempted assault using rocks, a stated attempt to harm a victim.
    16. present: Describes an attempted assault using rocks and labels it a hate crime, a stated harm and danger.
    17. present: It reports an attempted assault using rocks and characterizes it as a hate crime, a stated harm and danger.
    18. present: It describes an attempted assault using rocks and labels it a hate crime, a stated harm and serious offense.
    19. present: It describes an attempted assault using rocks, a stated attempt to harm a victim.
    20. present: Describes an attempted assault using rocks and an anti-Asian hate crime, a stated harm to a person.
    21. present: It reports an attempted assault using rocks believed to be an anti-Asian hate crime, a stated attempted harm.
    22. present: It describes an attempted assault using rocks and an anti-Asian hate crime, conveying a harmful violent act against a victim.
    23. present: Describes an attempt to assault a victim using rocks, conveying threatened harm in a hate crime.
    24. present: It reports an attempted assault using rocks, a stated attempt to harm a victim.
    25. present: It reports an attempt to assault a victim using rocks in a hate crime, a stated attempted harm.

Systematic AI judgments with visible reasoning, not human-validated codings.

About this analysis
Context

Background

The September 19, 2022 attack at Durant and Ellsworth Streets was one of the few off-campus assaults near UC Berkeley that the university's WarnMe system explicitly categorized as a possible anti-Asian hate crime. According to reporting in the Daily Californian, an unknown suspect attempted to assault a victim using rocks at 8:45 AM PDT. UCPD did not learn of the incident until 3:25 PM PDT, when an anonymous tip prompted the investigation -- a delay that the Berkeley Scanner noted substantially complicated the investigation. UCPD released no suspect description. The incident occurred amid a sustained pandemic-era concern about anti-Asian violence in the East Bay -- a Berkeleyside survey in 2021 found that about half of Asian and Asian American Berkeley residents reported experiencing racial harassment, with 10 percent reporting physical attack during the pandemic. UC Berkeley's Office of the Chancellor and Asian American studies faculty had repeatedly addressed the trend in the preceding 18 months. KTVU reported that parents and students were increasingly concerned about safety in the South Side neighborhood that includes Durant Avenue.
Analysis

Key Findings

WarnMe explicitly named 'possible anti-Asian hate crime' in the alert title -- a more direct framing than many other universities used during the pandemic-era surge
The nearly 7-hour reporting delay between incident and report illustrates a common Clery-system limitation: timely warnings can only be as timely as victims' decisions to report
The alert included no suspect description, illustrating the tension between transparency timelines and investigative completeness
The intersection (Durant and Ellsworth) is in Berkeley's South Side near Telegraph Avenue -- a high-foot-traffic student commercial district
Outcome
No arrests reported. UCPD provided few public details about the suspect or victim. Incident reported in UCPD daily crime log as aggravated assault with hate-crime designation. Came amid sustained concern about [anti-Asian incidents in the East Bay](https://www.berkeleyside.org/2021/05/12/anti-asian-harassment-widespread-berkeley-survey) following the COVID-19 pandemic.
Provenance

Sources

  1. Student Paper
    Anti-Asian hate crime reported near Durant and Ellsworth -- Daily Californian
    dailycal.org
    archived copy
  2. News
    'Anti-Asian hate crime' reported near UC Berkeley -- Berkeley Scanner
    berkeleyscanner.com
    archived copy
  3. News
    UC Berkeley Police Investigating Possible Anti-Asian Hate Crime -- NBC Bay Area
    nbcbayarea.com
    archived copy
  4. News
    Police: Assault near UC Berkeley campus may be anti-Asian hate crime -- CBS San Francisco
    cbsnews.com
    archived copy
  5. News
    Anti-Asian harassment widespread in Berkeley, survey suggests -- Berkeleyside
    berkeleyside.org
    archived copy
Cite this case

Campus Alert Archive. "University of California, Berkeley: Attempted assault with rocks reported as a possible anti-Asian hate crime." Incident of September 19, 2022. Added May 2026; last updated July 2026. https://campusalertarchive.com/case/uc-berkeley-anti-asian-hate-crime-2022-09-19/

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Alert text quoted on this page remains the work of the issuing institution; the archive is a secondary source.

Tags
anti-asian-hate-crimehate-crimeaggravated-assaulttimely-warningcovid-eracaliforniawarnmetelegraph-avenuesouth-sidedelayed-reportingUnder Investigation
Added May 2026Updated July 2026Via ingestion