Sihanoukville-Hong Kong (SHV-HK) cable: latency up to 2× normal, 17 Oct 2026
What we measured
| Cable | Sihanoukville-Hong Kong (SHV-HK) |
| Segment | Sihanoukville, KH → Tseung Kwan O, CN |
| Detected | 2026-10-17 13:01 UTC |
| Resolved | 2026-10-17 14:32 UTC |
| Duration | 1h 30m |
| Observed latency | 89.5 ms |
| Baseline | 52.3 ms · 2.01× |
| Increase | +101% |
| Severity | warning |
Who is affected
Countries where Sihanoukville-Hong Kong (SHV-HK) comes ashore, how much of their submarine diversity this cable represents, and what our measurements into them show.
| Country | Dependence on this cable | Other submarine cables | What the measurements show |
|---|---|---|---|
| Cambodia resilience index: 37 · vulnerable |
1 of 3 cables (33% of submarine diversity) | Asia Africa Europe-1 (AAE-1), Malaysia-Cambodia-Thailand (MCT) Cable | average 64 ms over 30 days |
| China resilience index: 100 · resilient |
1 of 24 cables (4% of submarine diversity) | APCN-2, Asia Africa Europe-1 (AAE-1), Asia Direct Cable (ADC) +20 more | median 159 ms today vs 160 ms over 30 days (99 routes) - unchanged |
Dependence is structural (share of the country's submarine cables), not a traffic share: real traffic distribution across cables is not public.
Path analysis
Traffic kept the same route. Latency rose without a visible path change, which points at congestion or a fault on the existing route rather than a reroute.
Cross-probe verdict. Our own cross-check concluded this was an operator reroute, not a cable fault. We publish it anyway, labelled as such.
Timeline
- Alert 2026101701: warning - ratio 2.01x
- Alert #229 improving: 1/3 consecutive OK
- Alert #229 resolved: RTT 89.48ms (baseline 52.33ms), 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.