Comment on 'A new analysis of the magnitude of the February 1663 earthquake at Charlevoix, Quebec' by John E. Ebel (Note)

摘要

Modern seismologists perhaps too easily become enamored of their modern seismographs and instrumental arrays that can do wonders for the analysis of recent events. In the instrumental era, we tend to forget that such recordings are barely 110 years old and that we are trying to understand seismic-source zones with an activity return period in the order of 300-600 years. Documenting and understanding preinstrumental historic events is still a necessary endeavor and requires the input of our allies in the field of history.