NCEDC News/Blog

Byteorder problem detected in some NCSN waveform files

Categories:   Northern California Earthquake Data Center (NCEDC)  |  Bugs  |  Berkeley Digital Seismic Network (BDSN, BK)  |  USGS Northern California Seismic Network (NCSN)

March 12, 1999 

We recently discovered that we loaded 33,933 grm files onto the NCEDC in the WRONG BYTE ORDER. These events were inadvertently stored in VAX byte order instead of Sun byte order. The list of eventids can be found in the file


The grm file have now been renamed with a ".unknown" suffix on the jukebox until we can correct this error. In the meantime, if you have downloaded any of these events, the data will be in the wrong byteorder. We apologize for this SNAFU.

Note: this problem was resolved on October 20, 1999.