SeisFile is a library for reading and writing seismic file formats in java.

Currently support exists for:
  • SAC
  • MiniSEED with limited support for full SEED
  • FDSN Station web service, which returns FDSN StationXML
  • FDSN Event web service, which returns QuakeML
  • FDSN DataSelect web service, which returns miniseed
  • IRIS Virtual Network web service
  • SeedLink
  • Datalink
  • Earthworm/Waveserver and ImportGeneric/ExportGeneric

These are low level routines that provide basic connection to the services and basic parsing of the file formats into objects that closely mirror those formats. Hence they are intended to be used as a library rather than an application. The clients, available in a separate jar to keep the main library small, are functional, but mainly serve as an example of how to connect to these services.

Full SEED support was also not intended. However there are cases of almost miniseed, such as one or two control records before the data records. SeisFile can handle the basic structure of these control records, allowing these mixed files to be read without crashing, but not all blockettes are parsed into fields.

Please see the seisFile project on Github,, for more information and to get the latest release,


Manager: Philip Crotwell