The alerts icon (triangle with a ! in it) shows a text list of the outages. There are many active; only one happened recently. They seem spaced out from each other, not indicative of a burst of Chinese naval activity.
[1] https://globaltaiwan.org/2025/03/countering-chinas-subsea-ca.... [2] https://www.bbc.com/news/articles/cwy3zy9jvd4o