Magnitude Scaling of Early-Warning Parameters for the Mw 7.8 Tocopilla, Chile, Earthquake and Its Aftershocks

  title={Magnitude Scaling of Early-Warning Parameters for the Mw 7.8 Tocopilla, Chile, Earthquake and Its Aftershocks},
  author={Maria Lancieri and Andres Fuenzalida and Sergio Ruiz and Ra{\'u}l Madariaga},
  journal={Bulletin of the Seismological Society of America},
We studied the correlation between the final event magnitude and four parameters obtained from the early portion of P and S phases for a set of high quality subduction events. These relationships are used in the framework of earthquake early- warning systems for real-time magnitude estimation. The investigated parameters are thelow-pass-filteredpeakdisplacement(PD),theintegralofthevelocitysquared (IV2), and the predominant and characteristic periods (τp and τc). We created a dataset from the… 

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