Astronomical modulation of global seismic energy release at the 18.6-year lunar nodal period
Carlo Doglioni
Astronomical cycles have long been proposed as potential modulators of seismicity, yet their influence remains controversial due to inconsistent results and methodological limitations. In this study it was tested whether the 18.6-year lunar nodal cycle, expressed in Earth rotation through length-of-day (LOD) variations, is detectable in global seismicity using independent earthquake catalogs (ISC–GEM, GCMT, USGS/NEIC) and a fully reproducible statistical framework. Monthly time series of earthqu