Natural Catastrophe·Monitoring
Indonesia Issues Tsunami Warning for Northeast Coastal Areas
🇮🇩 Northeast coastal areas of Indonesia· Country8 Jun
7 reportsPROPMHMC+2
LowAI Refreshed
ClosedLow impactAI Generated
M6.6 Earthquake – Southern East Pacific Rise, 20 May 2026
Occurred 20 May 2026·Detected 20 May 2026·
🇮🇳 Southern East Pacific Rise, remote mid-ocean ridge, South Pacific Ocean1 reportEnded 29 May 2026
Natural CatastrophePropertyMarine CargoEnergyReinsurance
A magnitude 6.6 earthquake occurred at shallow depth (10km) in the Southern East Pacific Rise on 20 May 2026 at 17:43 UTC. The event was assigned a Green alert level by GDACS, indicating low humanitarian and economic impact. The Southern East Pacific Rise is a remote mid-ocean ridge with no known populated land areas in the immediate vicinity, substantially limiting insured loss potential.
AI-generated from linked source reports. See our correction policy.
Impact verdict
Low impact. The event occurred in a remote mid-ocean ridge with no populated land areas nearby and received only a Green GDACS alert, indicating negligible humanitarian or economic impact and minimal insured loss potential.
View assessment methodologyHow we grade what we know -- Known · Reported · Uncertain. Methodology →
Intelligence ledger
Each line expands in place to its underlying sourced claim.
Known5 lines
Earthquake magnitude: 6.6M▾
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Depth: 10km (shallow)▾
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Date/time: 20 May 2026, 17:43 UTC▾
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Location: Southern East Pacific Rise (remote mid-ocean ridge)▾
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GDACS alert level: Green▾
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Reported1 line
No populated areas identified as potentially affected▾
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Uncertain2 lines
Whether any secondary effects (e.g. minor tsunami potential) were assessed▾
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Exact epicentre coordinates not provided in source▾
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Affected countries
🇮🇳 International Waters
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 Detection20 May 2026, 18:34
Initial Detection
A magnitude 6.6 earthquake occurred at shallow depth (10km) in the Southern East Pacific Rise on 20 May 2026 at 17:43 UTC. The event was assigned a Green alert level by GDACS, indicating low humanitarian and economic impact. The Southern East Pacific Rise is a remote mid-ocean ridge with no known populated land areas in the immediate vicinity, substantially limiting insured loss potential.
On 5/20/2026 5:43:02 PM, an earthquake occurred in Southern East Pacific Rise potentially affecting [unknown]. The earthquake had Magnitude 6.6M, Depth:10km. Alert level: Green.
Source: GDACS Alerts (Official Advisory) · View source
Lloyd's classifications
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