Our Seattle network is seeing degraded performance to/from China resulting in higher latency and packet loss due to China Unicom, who we use for our network to China (including Telecom, Unicom and Mobile), suffering backbone issues.
The cause is a fiber cut in the APCN-2 submarine cable between Shanghai and Japan which China Unicom uses for a lot of their traffic. China Unicom is working to repair but has provided no estimated fix time yet.