Read the linked page, and its infographic. 38% + 25% = 63% ~ "two thirds". There are another 11% caused by "human activity", it's just neither "fishing" (trawle

Read the linked page, and its infographic. 38% + 25% = 63% ~ "two thirds". There are another 11% caused by "human activity", it's just neither "fishing" (trawler nets) nor "anchorage", but "other", which could even be a keel severing the cable close to shore. https://blog.telegeography.com/hs-fs/hubfs/2017/submarine-cable-map/faq-graphics/causes-of-cable-faults.png https://blog.telegeography.com/hs-fs/hubfs/2017/submarine-ca... 74% human caused (38% fishing, 25% anchorage, 11% other) 14% environmental (8% natural, 6% abrasion) 12% neither human nor environmental (6% component failure, 6% other) "Deliberate sabotage and shark bites are exceedingly rare"