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Searching the IASPEI Ground Truth (GT) reference events

https://doi.org/10.31905/32NSJF7V

To search the IASPEI reference events, there is a standard 'Bulletin search' page. Additional search pages provide access to specific datasets within the reference events bulletin (e.g. an event catalogue or phase data).

Each search page has the option to define a search region using a Google Maps interface on an interactive page.

Bulletin search

The Bulletin search may be used to output a bulletin of event data in IASPEI Seismic Format or QuakeML. These data include:
  • hypocentres - both the prime (preferred) origin and secondary estimates;
  • magnitudes;
  • phase/arrival data;

Event catalogue

Outputs a catalogue of events only showing the prime (IASPEI) hypocentre for each event. The output can either be a CSV file (one line per event) or a QuakeML stream:
  • only the prime (IASPEI GT) hypocentre for an event is output;
  • magnitudes are also output where available.

Arrivals

Searches the IASPEI reference events for arrival (phase) data by station(s) and events. The search outputs the arrivals as either a CSV file (one arrival per line), in IMS1.0 'associated:arrivals' format, or QuakeML. Searches may limit data to only include arrivals with:
  • specific phase names (e.g. P, PKPdf, S etc.)
  • arrival-times (N.b. amplitude data do not always have arrival-times)
  • travel-time residuals (from ak135)
  • time-defining phases - phases used in the computation of the prime hypocentre
  • amplitudes


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