LAUSR

The research of geomagnetic disturbances plays an important role in the analysis and assessment of the impacts that the Sun has on technology and society. Recent results established the importance of evaluating local geomagnetic records and the role of local geomagnetic indices when assessing extreme space weather events like the Carrington or the Halloween geomagnetic storms (Cid et al., 2014, 2015; Saiz et al., 2016, 2021). These results gave evidence of a certain type of geomagnetic disturbances (the H-spikes) not previously recognized as hazardous to technology and has been analyzed in the literature as part of other topics of interest. This might have been due to a lack of perspective of the phenomenon associated with this type of magnetic disturbances, both in its temporal and spatial scale.