False Alarm Probabilities for Mixed Events
Abstract
Analysis of 1,471 P- and PKP-coda indicates that the probability of an unexplained phase occurring in a coda of an event as recorded at a single station is 0.12 for a detection threshold on the order of 3.5db (signal-to-coda background). The average coda length is roughly six minutes (343 seconds) for the events examined. The probability, therefore, that the seismograms at four stations out of thirteen will exhibit unexplained phases in the coda of a given earthquake is 0.045.
Document Details
- Document Type
- Technical Report
- Publication Date
- Nov 05, 1973
- Accession Number
- AD0775635
Entities
People
- E. I. Sweetser
- T. J. Cohen