Journal of Disaster Research
Online ISSN : 1883-8030
Print ISSN : 1881-2473
ISSN-L : 1881-2473
Mini Special Issue on Disasters and Human Survivability: Preliminary Analysis
Extreme Solar Flare as a Catastrophic Risk
Hiroaki IsobeTakuya TakahashiDaikichi SekiYosuke Yamashiki
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2022 Volume 17 Issue 2 Pages 230-236


Space weather, or the disturbances of the plasma environment driven by the magnetic activities in the Sun in geospace, has become a potential source of disaster for modern society, which is increasingly dependent on its space infrastructure and large-scale power grids. Recently, independent pieces of evidence have been found that support the possibility of extremely intense space weather driven by a “superflare,” a solar phenomenon that modern society has never experienced. This paper reviews state-of-art studies of superflares and their potential impacts.

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