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Chokepoint

El Segundo: A Crucial Hub for Global Submarine Cables

📈 Live RTT from our measurements · last 30 days
Daily average per cable, in ms; red dots mark days with detected anomalies.
10015020025030035040026.0702.0809.0816.0823.08Tata TGN-Pacific · 26.07 · 208 msTata TGN-Pacific · 27.07 · 176 msTata TGN-Pacific · 28.07 · 169 msTata TGN-Pacific · 29.07 · 197 msTata TGN-Pacific · 30.07 · 203 msTata TGN-Pacific · 31.07 · 197 msTata TGN-Pacific · 01.08 · 201 msTata TGN-Pacific · 02.08 · 198 msTata TGN-Pacific · 03.08 · 199 msTata TGN-Pacific · 04.08 · 205 msTata TGN-Pacific · 05.08 · 140 msTata TGN-Pacific · 06.08 · 138 msTata TGN-Pacific · 07.08 · 197 msTata TGN-Pacific · 08.08 · 205 msTata TGN-Pacific · 09.08 · 201 msTata TGN-Pacific · 10.08 · 160 msTata TGN-Pacific · 11.08 · 138 msTata TGN-Pacific · 12.08 · 136 msTata TGN-Pacific · 13.08 · 136 msTata TGN-Pacific · 14.08 · 138 msTata TGN-Pacific · 15.08 · 183 msTata TGN-Pacific · 16.08 · 137 msTata TGN-Pacific · 17.08 · 202 msTata TGN-Pacific · 18.08 · 137 msTata TGN-Pacific · 19.08 · 138 msTata TGN-Pacific · 20.08 · 163 msTata TGN-Pacific · 21.08 · 137 msTata TGN-Pacific · 22.08 · 185 msTata TGN-Pacific · 23.08 · 189 msAsia Connect Cable-1 (ACC-1) · 26.07 · 199 msAsia Connect Cable-1 (ACC-1) · 27.07 · 200 msAsia Connect Cable-1 (ACC-1) · 29.07 · 203 msAsia Connect Cable-1 (ACC-1) · 30.07 · 198 msAsia Connect Cable-1 (ACC-1) · 31.07 · 197 msAsia Connect Cable-1 (ACC-1) · 01.08 · 201 msAsia Connect Cable-1 (ACC-1) · 02.08 · 200 msAsia Connect Cable-1 (ACC-1) · 03.08 · 198 msAsia Connect Cable-1 (ACC-1) · 04.08 · 201 msAsia Connect Cable-1 (ACC-1) · 05.08 · 200 msAsia Connect Cable-1 (ACC-1) · 06.08 · 201 msAsia Connect Cable-1 (ACC-1) · 10.08 · 198 msAsia Connect Cable-1 (ACC-1) · 15.08 · 202 msAsia Connect Cable-1 (ACC-1) · 19.08 · 218 msAsia Connect Cable-1 (ACC-1) · 20.08 · 198 msAsia Connect Cable-1 (ACC-1) · 21.08 · 199 msAsia Connect Cable-1 (ACC-1) · 22.08 · 197 msAsia Connect Cable-1 (ACC-1) · 23.08 · 199 msAsia Connect Cable-1 (ACC-1) · 24.08 · 195 msProject Waterworth · 26.07 · 243 msProject Waterworth · 27.07 · 242 msProject Waterworth · 28.07 · 292 msProject Waterworth · 29.07 · 255 msProject Waterworth · 30.07 · 236 msProject Waterworth · 31.07 · 235 msProject Waterworth · 01.08 · 229 msProject Waterworth · 02.08 · 225 msProject Waterworth · 03.08 · 222 msProject Waterworth · 04.08 · 226 msProject Waterworth · 05.08 · 223 msProject Waterworth · 06.08 · 229 msProject Waterworth · 07.08 · 236 msProject Waterworth · 08.08 · 289 msProject Waterworth · 09.08 · 226 msProject Waterworth · 10.08 · 235 msProject Waterworth · 11.08 · 287 msProject Waterworth · 12.08 · 351 msProject Waterworth · 13.08 · 278 msProject Waterworth · 14.08 · 319 msProject Waterworth · 15.08 · 310 msProject Waterworth · 16.08 · 360 msProject Waterworth · 17.08 · 259 msProject Waterworth · 18.08 · 286 msProject Waterworth · 19.08 · 314 msProject Waterworth · 20.08 · 284 msProject Waterworth · 21.08 · 234 msProject Waterworth · 22.08 · 244 msProject Waterworth · 23.08 · 223 msProject Waterworth · 24.08 · 223 msJUPITER · 26.07 · 236 msJUPITER · 27.07 · 203 msJUPITER · 28.07 · 204 msJUPITER · 29.07 · 200 msJUPITER · 30.07 · 206 msJUPITER · 31.07 · 203 msJUPITER · 07.08 · 207 msJUPITER · 08.08 · 208 msJUPITER · 09.08 · 209 msJUPITER · 20.08 · 208 msJUPITER · 22.08 · 208 msJUPITER · 23.08 · 207 ms

El Segundo: Where Cables Converge

El Segundo, located off the coast of California (latitude 34.0000, longitude -118.5000), is a critical hub for submarine cable infrastructure. This location was chosen strategically: it is close to major U.S. tech hubs like Los Angeles and provides convenient access to Pacific routes. Geographically, it is positioned to efficiently connect North America with Asia, Oceania and South America.

Proximity to major data centers and telecommunications nodes makes this point strategically vital for the global internet. However, the concentration of cables in one location also creates a vulnerability that requires attention.

What Passes Through El Segundo

This chokepoint is traversed by 13 submarine cables, including some of the longest and most important routes in the world:

  • Project Waterworth: 50,000 km, one of the largest global connectivity projects.
  • Tata TGN-Pacific: 22,300 km, connecting the U.S. with Asia.
  • Asia Connect Cable-1 (ACC-1): 19,000 km, linking North America and Asia.
  • JUPITER: 14,557 km, providing low latency between Japan, the Philippines and the U.S.
  • SEA-US: 14,500 km, connecting the U.S. with Southeast Asia via Guam.
  • Southern Cross NEXT: 13,700 km, linking the U.S., Australia and New Zealand.
  • ORCA: 12,482 km, covering routes between the U.S. and Oceania.
  • Pacific Light Cable Network (PLCN): 11,806 km, connecting the U.S. with Hong Kong and the Philippines.
  • Curie: 10,476 km, linking the U.S. and South America.
  • Unity/EAC-Pacific: 9,620 km, connecting the U.S. with Japan.

The list also includes cables such as Tabua, Zayo Festoon and Unity, although their exact lengths or roles remain partially undisclosed in available data.

Who Relies on This Hub

El Segundo serves numerous countries and regions. In the event of cable disruptions here, significant connectivity issues would be felt by:

  • The U.S.: as the country hosting data centers and transit nodes.
  • Japan, The Philippines, Indonesia, Guam, Micronesia, Palau: key Asia-Pacific nodes.
  • Australia and New Zealand: users of Southern Cross NEXT.
  • South America (Panama, Brazil): via Curie.
  • South Africa and India: through globally spanning routes.

Additionally, countries like Timor-Leste and Fiji depend on stable connectivity through this chokepoint.

Risks: From Earthquakes to Sabotage

The risks in the El Segundo area are diverse:

  • Seismic activity: California's coastline is known for high tectonic activity. An earthquake could damage cables on the ocean floor.
  • Ship anchors: proximity to the Port of Los Angeles increases the risk of cable damage from improper anchor use.
  • Fishing: trawling can accidentally snag cables.
  • Sabotage: cables remain vulnerable to intentional attacks, especially given their strategic importance.
  • Geopolitics: tensions between nations could lead to deliberate damage or sanctions affecting cable operations.

The specifics of the Tabua and Zayo Festoon cables mentioned in the data require further analysis: their lengths are listed as -1 km, which may indicate data errors or incomplete information.

How GeoCables Monitors the Situation

GeoCables actively monitors the status of cables in the El Segundo area. The following approaches are used:

  • Latency monitoring: tracking changes in data transmission speeds to identify potential damage.
  • Ship tracking: analyzing the routes of vessels near cables to prevent incidents.
  • Seismic activity analysis: using earthquake data to assess potential cable damage.

El Segundo remains one of the most critical points for the global network, and its security demands constant attention.

🗺 The zone on the live map
Open the full map →
⚓ Cables in this zone: live status
From our monitoring network; baseline is the cable's normal RTT.
CableLengthRFSRTT nowBaselineStatus
Project Waterworth50,000 km-407 ms461 msnominal
Tata TGN-Pacific22,300 km2002137 ms151 msnominal
Asia Connect Cable-1 (ACC-1)19,000 km2028333 ms338 msnominal
JUPITER14,557 km2020-201 msnominal
ORCA12,482 km2027244 ms244 msnominal
Tabua-2026--nominal
SEA-US14,500 km2017250 ms-nominal
Curie10,476 km2020192 ms192 msnominal
Evgeny K.
Written by
Evgeny K.
Infrastructure Engineer · Founder of GeoCables
Built GeoCables to monitor submarine cables in real time. Runs his own distributed network of measurement servers, including in regions poorly covered by public internet measurements.

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