Here is a high quality article from last year about how these cables are repaired. https://www.theverge.com/c/24070570/internet-cables-undersea-deep-repair-ship

Here is a high quality article from last year about how these cables are repaired. https://www.theverge.com/c/24070570/internet-cables-undersea-deep-repair-ships https://www.theverge.com/c/24070570/internet-cables-undersea...