"Miyake event" poses greater threat than "Carrington event" to modern technology.

Miyake events, sudden, single-year leaps in the concentration of carbon-14 in trees, as well as beryllium-10 and chlorine-36 in ice sheets, exhibit significantly greater intensity than the solar or stellar events that could have triggered the Carrington event in 1859. Scientists are using Miyake events to precisely date historic occurrences or specimens. However, a Miyake event powerful enough to leave its mark in the rings of trees would cripple modern society, collapsing telecommunications systems, flooding satellites, and toppling power grids, leaving anything reliant on electricity inoperable.