Due to an ongoing update by INGV, the main SISMOS website is currently not accessible. The updated website is expected to be back online in a few months. The SeismogramRequest service, the search and download platform for raster images of historical seismograms from the SISMOS database (https://seismogramrequest.rm.ingv.it/), remains active throughout this process.
For further questions on this matter, feel free to contact Monia Maresci (monia.maresci@ingv.it) or Graziano Ferrari (graziano.ferrari@ingv.it).