Incident report · 2026081501
Matrix Cable System: 0.67× baseline latency
Resolved · 6d 10h
What we measured
| Cable | Matrix Cable System |
| Segment | Jakarta, ID → Changi South, SG |
| Detected | 2026-08-15 11:01 UTC |
| Resolved | 2026-08-21 21:02 UTC |
| Duration | 6d 10h |
| Observed latency | 13.6 ms |
| Baseline | 20.2 ms · 0.67× |
| Increase | +143% |
| Severity | warning |
Who is affected
Countries where Matrix Cable System 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 |
|---|---|---|---|
| Indonesia resilience index: 100 · resilient |
1 of 73 cables (1% of submarine diversity) | Apricot, Asia Connect Cable-1 (ACC-1), Asia United Gateway East (AUG East) +69 more | median 240 ms today vs 232 ms over 30 days (60 routes) - unchanged |
| Singapore resilience index: 78 · resilient |
1 of 46 cables (2% of submarine diversity) | APCN-2, Apricot, Asia Connect Cable-1 (ACC-1) +42 more | median 107 ms today vs 188 ms over 30 days (81 routes) - faster |
Dependence is structural (share of the country's submarine cables), not a traffic share: real traffic distribution across cables is not public.
Timeline
- Alert 2026081501: warning - ratio 2.43x
- Alert #169 improving: 1/3 consecutive OK
- Alert #169 improving: 1/3 consecutive OK
- Alert #169 improving: 2/3 consecutive OK
- Alert #169 resolved: RTT 13.64ms (baseline 20.22ms), 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 2026081501: Matrix Cable System. https://geocables.com/incident/2026081501
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