Center for Engineering Strong Motion Data (CESMD)
Small Records/Earthquakes FTP

This ftp folder contains:
1) All records for earthquakes with magnitude smaller than 3.5 in California
2) Records with Peak Ground Acceleration less than 0.5%g regardless of earthquake magnitude

The format of ftp folders name is like yyyymmdd_hhmmss_eventID_Mx.y in which:
yyyymmdd is the event date in UTC
hhmmss is the event hour, minute and second
eventID is the ID assigned to event by the authoritative seismic network
Mx.y is the event magnitude

Each earthquake folder contains compressed files for raw (V1) and processed (V2, V3) data, and a plot of time series and spectra.

For any question regarding the records at the CESMD ftp, please write to: 

cesmd@strongmotioncenter.org