In order to provide Web access to the NCSN waveform before the SEED conversion and instrument response for the NCSN has been completed, the NCEDC implemented EVT_FAST, an interim email-based waveform request system similar to the BREQ_FAST email request system. Users can email EVT_FAST requests to the NCEDC and request NCSN waveform data based on the NCSN event id. The NCSN waveform data is converted to either SAC ASCII, SAC binary, or AH format, and placed in the anonymous ftp directory so that users can retrieve the data. The EVT_FAST waveforms are currently named with the USGS's native NCSN channel names. We have just begun the work to provide EVT_FAST waveform data in SEED format with SEED channel names.
Berkeley Seismological Laboratory
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