Understanding how faults and tectonic systems evolve requires reconciling observations from seconds to years for earthquake swarms, slow-slip events and aseismic creep; numerous years for geodetic strain accumulation; and thousands to millions of years for cumulative fault-slip, exhumation, and landscape evolution. These timescales are typically studied using diverse tools, from earthquake catalogues and GNSS timeseries to paleoseismology and geomorphology, yet the underlying question is shared: what physical processes underlie (or control) elastic strain accumulation on faults, and what is their impact on fault growth?

This session invites contributions that explicitly connect short- and long-term perspectives on active tectonics and seismicity. Topics of interest include, but are not limited to: earthquake swarms and their relation to fluid migration, pore-pressure transients and aseismic slip; interseismic strain accumulation and fault creep from geodetic and seismological observations; fault slip rates over geodetic, earthquake and geological timescales; paleoseismology and earthquake histories from geological and geomorphological archives; the role of fluids and rheology in modulating seismic versus aseismic deformation across the brittle to ductile transition; and numerical or conceptual models that bridge earthquake-cycle and long-term tectonic evolution. We particularly welcome studies from actively extending, contracting, or transform continental settings (e.g. the Aegean-Anatolian region, the Apennines, the Basin and Range, East African and other rifts) and encourage interdisciplinary contributions linking seismic hazard assessment with the longer-term geological record.