Incident report · 2026040401
Southeast Asia-Japan Cable (SJC): 1.15× baseline latency
Resolved · 4h 17m
What we measured
| Cable | Southeast Asia-Japan Cable (SJC) |
| Segment | Tuas, SG → Chikura, JP |
| Detected | 2026-04-04 05:00 UTC |
| Resolved | 2026-04-04 09:17 UTC |
| Duration | 4h 17m |
| Observed latency | 122.7 ms |
| Baseline | 106.9 ms · 1.15× |
| Increase | +414% |
| Severity | critical |
Path analysis
No usable traceroute data for this window.
Cross-probe verdict. Too few independent vantage points were watching this endpoint to reach a cross-probe verdict.
Timeline
- Alert #40: critical — Chikura
- Alert #40 improving: 1/3 consecutive OK checks
- Alert #40 improving: 2/3 consecutive OK checks
- Alert #40 resolved: RTT 122.7ms (baseline 106.91ms)
Detection method
Latency is sampled continuously from our probe network. An alert opens when round-trip time to a monitored endpoint holds above its rolling baseline, and closes automatically once it returns. Full method is described on the methodology page.
How to cite
GeoCables (2026). Incident 2026040401: Southeast Asia-Japan Cable (SJC). https://geocables.com/incident/2026040401
Embed this map
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