Most people are already well aware of Carrington events, so I'm not going to elaborate on them. I was not aware of Miyake events prior to seeing this news. They are like Carrington Events on steroids, with perhaps 80 times the disruptive potential of Carrington. Fortunately the Miyake events are less frequent.
Anyway, either one of these events threatens likelihood of disabling the technology currently supporting modern banking. In my opinion it will do little good to worry about these things. But people should be aware the potential for such as this exists.
You know, it's funny. When the largest recent Carrington event struck back in the late summer of 1859, technology was very primitive. All that happened was disruption of then-emerging telegraph service. That same event today would take banking back to the 1940's, or earlier. I don't even want to think about Miyake.
Here is an explanatory reference that just came out a couple of days ago: