Incident report · 2026080502
High-capacity Undersea Guernsey Optical-fibre (HUGO): 0.62× baseline latency
Resolved · 1h 30m
What we measured
| Cable | High-capacity Undersea Guernsey Optical-fibre (HUGO) |
| Segment | Porthcurno, GB → Saints Bay, GG |
| Detected | 2026-08-05 21:02 UTC |
| Resolved | 2026-08-05 22:32 UTC |
| Duration | 1h 30m |
| Observed latency | 29.8 ms |
| Baseline | 48.3 ms · 0.62× |
| Increase | +141% |
| Severity | warning |
Timeline
- Alert 2026080502: warning — ratio 2.41x
- Alert #166 improving: 1/3 consecutive OK
- Alert #166 resolved: RTT 29.83ms (baseline 48.31ms), 3 consecutive OK
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 2026080502: High-capacity Undersea Guernsey Optical-fibre (HUGO). https://geocables.com/incident/2026080502
Embed this map
<iframe src="https://geocables.com/embed.php?type=map&id=high-capacity-undersea-guernsey-optical-fibre-hugo" width="640" height="420" frameborder="0" loading="lazy" style="border:0;border-radius:10px"></iframe>