Geomagnetic Storms - Classified - 1993 - 2025

List of Geomagnetic Storms from 1993 to 2025 classified in main and recovery phase. The requirement for a storm to be identified is that it reaches an SMR index of -50 [nT] More information on the SMR ring current index can be found here : http://supermag.jhuapl.edu This version is based on the work published on Geophysical Research letters (GRL) "Plasma sheet Magnetic Flux Transport During Geomagnetic Storms" : https://agupubs.onlinelibrary.wiley.com/doi/epdf/10.1029/2024GL110839 Columns are in order: index, storm number, minimum SMR, start time, end time, phase characterization, and duration. Comapred to version V2 the latest storms require manual verification