CSS Ground-Truth Database: Version 1 Handbook

摘要

The Ground-Truth Database (GTDB) is a collection of regional waveforms and phaseparameters generated by seismic events of known type, (i.e. earthquake, quarry blast, etc.) where the event type is confirmed by some means in addition to seismic observations. The ground-truth data, in order of importance are: event type, location, depth, and origin time. References to the source of the ground-truth (usually a document or a person) are readily available in the OTDB. The most significant modification to CSS 3.0 tables is that the origin table is used to store event information collected from experts in the local areas. This has resulted in a 'hybrid' origin table that contains, in each field, the best information available at the time of this writing. Version 1 of the GTDB includes 82 events in three distinct regions. Dataset No. 1 consists of 11 earthquakes and 15 quarry blasts in the Vogtland region of northwest Bohemia, Czech Republic; Dataset No. 2 consists of 25 events from an earthquake swarm just off the west coast of northern Norway in the Steigen area; Dataset No. 3 consists of 31 induced mine tremors in a major mining district known as the Lubin Copper Basin in western Poland. The GTDB is part of the Center's Central Database Repository (CDR), available on-line under the account 'DISCRIM1'.