RiskEvents
ClosedLow impactAI Generated

M5.6 Green Earthquake in United States – 22 May 2026

Occurred 22 May 2026·Detected 22 May 2026·
🇺🇸 United States (exact epicentre unspecified)1 reportEnded 29 May 2026
Natural CatastrophePropertyMarine CargoEnergyCasualty & LiabilityReinsurance

A magnitude 5.6 earthquake struck the United States on 22 May 2026 at 12:16 UTC, at a shallow depth of approximately 13.6 km. GDACS issued a Green alert level, indicating minimal impact, with only a few people estimated to be affected at MMI III shaking intensity. At MMI III, shaking is felt but rarely causes damage to structures. The event is considered low severity from an emergency and insurance loss perspective.

AI-generated from linked source reports. See our correction policy.

Impact verdict

Low impact. GDACS Green alert with MMI III shaking and few people affected indicates minimal structural damage potential and negligible insured loss expectation from this event.

View assessment methodology

How we grade what we know -- Known · Reported · Uncertain. Methodology →

Intelligence ledger

Each line expands in place to its underlying sourced claim.

Known6 lines

Earthquake magnitude: 5.6M▾
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Depth: approximately 13.576 km (shallow)▾
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Occurred at 12:16:14 UTC on 22 May 2026▾
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Location: United States▾
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GDACS alert level: Green▾
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Maximum MMI reported: III (weak shaking, felt by some but little to no damage expected)▾
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Reported1 line

Few people affected at MMI III intensity▾
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Uncertain3 lines

Exact epicentre location within the United States not specified▾
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Whether any structural damage or injuries occurred▾
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Urban vs. rural setting of affected area▾
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Geographic Zone Matches

2 active matches

  • TRIA Certified Areas
    Rule-basedConfidence 100%
  • Pacific Ring of Fire
    Rule-basedConfidence 100%

Geographic zone matches are RiskEvents spatial/analytical indicators, not coverage determinations or Lloyd's official classifications.

Affected countries

🇺🇸 United States

Timeline

Status Change2 Jun 2026, 13:05

Lifecycle changed

monitoring → closed

Closure2 Jun 2026, 13:05

Event Closed

auto_closed_monitoring_timeout

Status Change29 May 2026, 05:30

Status changed to monitoring

Auto-transitioned: no updates for 6 hours

active → monitoring

Status Change28 May 2026, 22:36

Status changed to active

remediation: existing authoritative signal

signal → active

Initial Detection22 May 2026, 13:04

Initial Detection

A magnitude 5.6 earthquake struck the United States on 22 May 2026 at 12:16 UTC, at a shallow depth of approximately 13.6 km. GDACS issued a Green alert level, indicating minimal impact, with only a few people estimated to be affected at MMI III shaking intensity. At MMI III, shaking is felt but rarely causes damage to structures. The event is considered low severity from an emergency and insurance loss perspective.

Alert level: Green. Severity: Magnitude 5.6M, Depth:13.6km. Country: United States. Few people affected in MMI III.

Source: GDACS Alerts (Official Advisory) · View source

Lloyd's classifications

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