Access to the data of the XA Network - Apollo Passive Seismic Experiment Network

XA station metadata

XA station metadata are available in dataless SEED format here:
Dataless SEED file by station or dataless SEED file of all the network are available.

XA seismic data (1969-1977)

Seismic data from the Apollo Passive Seismic Experiment Network (Network code XA) are accessible by FTP:
FTP anonymous server:
Directory: data/XA
(Direct link:

Data are organized as follows:
  • One tar file by year including miniSEED data of the year
  • In the tar file data are organized in sub-directories YYYY/STATION/CHANNEL and the name of each miniSEED file is NETWORK.STATION..CHANNEL.YYYY.DOY
    DOY : day of the year (no zero-padded 1..36[56])