Gruenthal, Gottfried and Wahlstroem, R. (2003) An Mw based earthquake Catalogue for central, northern and northwestern Europe using a hierarchy of magnitude conversions. Journal of Seismology, 7 (4). pp. 507-531. DOI: https://doi.org/10.1023/B:JOSE.0000005715.87363.13
Full text not available from this repository.Abstract
Data from 25 local catalogues and 30 special studies of earthquakes in central, northern and northwestern Europe have been incorporated into a Databank. The data processing includes discriminating event types, eliminating fake events and duplets and converting different magnitudes and intensities to Mw if this is not given by the original source. The magnitude conversion is a key task of the study and implies establishment of regression equations where no local relations exist. The Catalogue contains tectonic events from the Databank within the area 44°N–72°N, 25°W–32°E and the time period 1300–1993. The lower magnitude level for the Catalogue entries is set at Mw = 3.50. The area covered by the different catalogues are associated with polygons. Within each polygon only data from one or a small number of the local catalogues, supplemented by data from special studies, enter the Catalogue. If there are two or more such catalogues or studies providing a solution for an event, a priority algorithm selects one entry for the Catalogue. Then Mw is calculated from one of the magnitude types, or from macroseismic data, given by the selected entry according to another priority scheme. The origin time, location, Mw magnitude and reference are specified for each entry of the Catalogue. So is the epicentral intensity, I0, if provided by the original source. Following these criteria, a total of about 5,000 earthquakes constitute the Catalogue. Although originally derived for the purpose of seismic hazard calculation within GSHAP, the Catalogue provides a data base for many types of seismicity and seismic hazard studies.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | central, northern and northwestern Europe, earthquake catalogues, moment magnitude |
| Subjects: | Methodology > Method and procesing > Collective properties of seismicity > Source size distribution |
| Project: | IS-EPOS project |