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To better illustrate the recovery for these 23 hosts in 13 countries, in the Figure below we show the median RTT seen from SLAC to these hosts for the last week in January. It is seen that the median RTT goes from a very stable ~300ms to almost 1000ms (a factor of more than 3) on January 30th. It partially recovers on January 31st to about 550 ms. The error bars show the variability of the results (as the Inter Quartile Range), which is seen to increase dramatically after January 29th.
It also needs to be stressed Not that not all hosts in all countries were impacted, e.g. India: 2 of 8; Sri Lanka 3 of 5; Malvinas 3 of 5; Indonesia 1 of 7; Turkey: 1 of 3; Thailand 1 of 6. On the other hand all monitored hosts were impacted in: UAE(1), Bangladesh(2), Bhutan(2), Djibouti(1), Jordan(4), Oman(1), Qatar(1), Saudi Arabia(2). The numbers in parentheses are the number of hosts monitored.
The list of countries that have PingER monitored hosts, but none of the hosts were noticeably impacted is also interesting. It includes: Egypt, Ethiopia, Iran, Israel, Lebanon, Pakistan, Palestine, Sudan, Central Asia, the Caucasus and East Asia. Some of these were lucky that they did not make major use of either of the two cables (e.g. Palestine is mainly served by SEAMEWE3), others had totally different routes from SLAC (e.g. via the Pacific for East Asia), others such as Israel had alternate paths, other used satellite (e.g. Central Asia).