Incident report · 2026083101
Africa-1 cable: latency up to 2.6× normal, 31 Aug 2026
Resolved · 20h 1m
What we measured
| Cable | Africa-1 |
| Segment | Mombasa, KE → Marseille, FR |
| Detected | 2026-08-31 10:31 UTC |
| Resolved | 2026-09-01 06:32 UTC |
| Duration | 20h 1m |
| Observed latency | 40.6 ms |
| Baseline | 735.8 ms · 2.61× |
| Increase | +161% |
| Severity | warning |
Who is affected
Countries where Africa-1 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 |
|---|---|---|---|
| Algeria resilience index: 88 · resilient |
1 of 7 cables (14% of submarine diversity) | Alpal-2, Med Cable Network, Medusa Submarine Cable System +3 more | average 55 ms over the last day vs 50 ms over 30 days - unchanged |
| Djibouti resilience index: 68 · moderate |
1 of 12 cables (8% of submarine diversity) | 2Africa, Aden-Djibouti, Asia Africa Europe-1 (AAE-1) +8 more | no measurement today; median 174 ms over 30 days (48 routes) |
| Egypt resilience index: 100 · resilient |
1 of 25 cables (4% of submarine diversity) | 2Africa, Aletar, Asia Africa Europe-1 (AAE-1) +21 more | median 29 ms today vs 144 ms over 30 days (59 routes) - faster |
| France resilience index: 100 · resilient |
1 of 35 cables (3% of submarine diversity) | 2Africa, Africa Coast to Europe (ACE), Amitie +31 more | median 79 ms today vs 72 ms over 30 days (657 routes) - unchanged |
| Kenya resilience index: 66 · moderate |
1 of 9 cables (11% of submarine diversity) | 2Africa, Daraja, Djibouti Africa Regional Express 1 (DARE 1) +5 more | median 227 ms today vs 185 ms over 30 days (225 routes) - slower |
| Pakistan resilience index: 61 · moderate |
1 of 9 cables (11% of submarine diversity) | 2Africa, Asia Africa Europe-1 (AAE-1), IMEWE +5 more | median 179 ms today vs 161 ms over 30 days (59 routes) - unchanged |
| Saudi Arabia resilience index: 100 · resilient |
1 of 25 cables (4% of submarine diversity) | 2Africa, Asia Africa Europe-1 (AAE-1), EMC West-1 +21 more | median 137 ms today vs 145 ms over 30 days (58 routes) - unchanged |
| Somalia resilience index: 69 · moderate |
1 of 6 cables (17% of submarine diversity) | 2Africa, Djibouti Africa Regional Express 1 (DARE 1), Eastern Africa Submarine System (EASSy) +2 more | median 29 ms today vs 28 ms over 30 days (7 routes) - unchanged |
| United Arab Emirates resilience index: 100 · resilient |
1 of 22 cables (5% of submarine diversity) | 2Africa, Asia Africa Europe-1 (AAE-1), Bay of Bengal Gateway (BBG) +18 more | median 181 ms today vs 119 ms over 30 days (222 routes) - slower |
| Yemen resilience index: 65 · moderate |
1 of 5 cables (20% of submarine diversity) | Aden-Djibouti, Asia Africa Europe-1 (AAE-1), FALCON +1 more | no measurement today; median 97 ms over 30 days (17 routes) |
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 changed route and the original path stopped responding. This is the pattern a real cable break produces.
Cross-probe verdict. Too few independent vantage points were watching this endpoint to reach a cross-probe verdict.
Timeline
- Alert 2026083101: warning - ratio 2.61x
- Alert #181 improving: 1/3 consecutive OK
- Alert #181 improving: 1/3 consecutive OK
- Alert #181 improving: 1/3 consecutive OK
- Alert #181 improving: 1/3 consecutive OK
- Alert #181 improving: 2/3 consecutive OK
- Alert #181 improving: 1/3 consecutive OK
- Alert #181 improving: 1/3 consecutive OK
- Alert #181 improving: 2/3 consecutive OK
- Alert #181 improving: 1/3 consecutive OK
- Alert #181 improving: 1/3 consecutive OK
- Alert #181 resolved: RTT 40.61ms (baseline 735.75ms), 8 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 2026083101: Africa-1. https://geocables.com/incident/2026083101
Embed this map
<iframe src="https://geocables.com/embed.php?type=map&id=africa-1" width="640" height="420" frameborder="0" loading="lazy" style="border:0;border-radius:10px"></iframe>