Special issue “The 2024 M7.6 Noto Peninsula Earthquake and Seismic Swarm”

The 2024 Mw7.5 (M JMA 7.6) Noto Peninsula earthquake struck the Noto Peninsula, central Japan on January 1, 2024, causing widespread damage.This Mw7.5 mainshock, together with the prolonged seismic swarm that persisted in the northeastern Noto Peninsula since the end of 2020, of which the largest event was the 2023 M JMA 6.5 earthquake, constitutes one of the most significant seismic sequences in Japan in recent decades.The sequence provides a rare opportunity to investigate the complex interplay among swarm activity, fluid migration, fault geometry and distribution, and the preparatory conditions required for a large inland crustal earthquake.Motivated by this scientific context, this special issue brings together studies examining the sequence from diverse disciplinary perspectives, incorporating seismic, geodetic, and tsunami-related observations and modelling.Fluids are considered to play a key role in the preceding swarm activity in the Noto Peninsula.The contribution of fluids has been examined from multiple geophysical perspectives, such as seismic tomography, tidal response, focal mechanisms, and static stress drops.Okada et al. (2024) conducted shear-wave splitting analysis and seismic tomography around the swarm source region.The