CSN Format
CSN's specifications for this format
CSN's specifications used by this site are provided below for convenience.
(The version below may not be as up-to-date as the CSN specification linked above, but was the most recent specification at the last update of this web tool.)
II NATIONAL SEISMOLOGICAL CENTER
Data is provided in binary or ASCII file.
Binary file corresponds to Kimetrics EVT file (Typically Basalt).
ASCII file is divided in three files per record. Two horizontal and on vertical component.
Data name of files corresponds to date time separated by dots followed by station name and
component.
In each ASCII file we find six lines initiate by #, Figure 2
Line 1. Origen Time
Line 2. Samples per second (200 sps typical)
Line 3. Total number of samples
Line 4. Station Name. and Component (HNE, HNN and HNZ)
Line 5. Latitude – Longitude
Line 6. Unit (typical m/s/s)