Can someone please help me obtain the effective dates of operation, location and sensitivities for seismic stations used to create the centennial catalog? I am analyzing ~90 regions of the world for completeness of the series (including potential clumping or trends) for events >= M6.5? I have requested this from the USGS, but the request appears to be lost with no answer.
The centennial catalogue has been recently superseded by the Global Earthquake Model / International Seismological Centre Instrumental Earthquake Catalogue (1900-2009):
http://www.isc.ac.uk/iscgem/index.php
The authors of the Centennial Catalogue (Engdahl and Villaseñor) are coauthors of this updated and more complete GEM/ISC version:
http://www.seismosoc.org/publications/srl/SRL_84/srl_84-5_es/srl_84-5_es.pdf
This catalogue is mostly based on an extensive dataset of phase picks collected from a large number of historical bulletins. A overall analysis of the catalogue completeness in included in the publication above. Also, Andrew J. Michael (USGS) presented some other results about the catalogue completeness in the AGU Fall Meeting 2013:
http://adsabs.harvard.edu/abs/2013AGUFM.S13C..01M
If you are interested in the instrumentation, operation dates, etc. of the stations used, I would contact directly the catalogue authors. However, analyzing this vast amount of information seems a cumbersome task.
Best regards,
Álvaro
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