Catalog and moment rate function dataset of shallow VLFE southeast off the Kii Peninsula, in the Nankai subduction zone

<h2>Catalog</h2> <p>"VLFE_catalog_latestUTC" is the catalog file. Estimated origin time (JST), longitude, latitude, seismic moment, duration, seismic moment (half-value width), half-value width, Variance reduction, and estimated origin time (UTC) of each shallow VLFE are listed.&nbsp;</p> <p>"VLFE_catalog_SP_latestUTC" is the catalog file for shallow VLFEs evaluated via a single K&uuml;pper wavelet with various durations.&nbsp;</p> <h2>Inversion results</h2> <p>YYYYDDMMHHMM is the directory name of a shallow VLFE that occurred in HH:MM DD MM YYYY (JST).&nbsp;</p> <ul> <li>YYYYDDMMHHMM_VR.dat: spatiotemporal variation of variance reduction in inversion procedure.&nbsp;</li> <li>YYYYDDMMHHMM_param.stfvlf: parameter file for inversion. Station names and their weight in inversion are listed.</li> <li>YYYYDDMMHHMM_solution.png: Image file illustrating inversion result.&nbsp;</li> <li>YYYYDDMMHHMM_stf_optimal.sac: SAC format file for the estimated optimal moment rate function of a shallow VLFE.&nbsp;</li> <li>YYYYDDMMHHMM_stf_optimal.dat: ASCII format file for the estimated optimal moment rate function of a shallow VLFE.&nbsp; Estimation errors were evaluated from five-time simulated annealing procedures for different random seeds.&nbsp;</li> <li>YYYYDDMMHHMM_solution_SP.png: Image file illustrating inversion result based on the single-pulse assumption.</li> <li>YYYYDDMMHHMM_stf_optimal_SP.sac: SAC format file for the estimated optimal moment rate function of a shallow VLFE based on the single-pulse assumption.</li> <li>YYYYDDMMHHMM_stf_optimal_SP.dat: ASCII format file for the estimated optimal moment rate function of a shallow VLFE based on the single-pulse assumption.</li> </ul> <p><strong>Details for methods and results</strong></p> <p><span>Takemura,&nbsp;S.</span>,&nbsp;<span>Yabe,&nbsp;S.</span>,&nbsp;<span>Emoto,&nbsp;K.</span>, &amp;&nbsp;<span>Baba,&nbsp;S.</span>&nbsp;(<span>2025</span>).&nbsp;<span>Along-dip variations in source characteristics of shallow slow earthquakes controlled by topography of subducted oceanic plate</span>.&nbsp;<em>Journal of Geophysical Research: Solid Earth</em>,&nbsp;<span>130</span>, e2024JB030751.&nbsp;<a href="https://doi.org/10.1029/2024JB030751">https://doi.org/10.1029/2024JB030751</a></p>