Tomographic Mapping of Lg Propagation in Northern Europe
Abstract
How Important is the Tornquist Zone? We look at crustal differences across the geologically significant Tornquist zone. Recordings of regional earthquakes in Northern Europe have been collected in attempt to find the Lg-surface wave propagation. We classify the Lg-wave propagation paths according to weather the Lg wave propagation is good, intermediate or poor. We have included the available data from the period 1994-2004, accepting earthquakes with at least three amplitude measurements. With the relatively dense areal coverage provided by paths crossing the region it is possible to invert for the pattern of crustal heterogeneity which gives rise to the observed character of the Lg-wave propagation. We are using data from permanent seismic stations.
- Publication:
-
AGU Fall Meeting Abstracts
- Pub Date:
- December 2007
- Bibcode:
- 2007AGUFM.S33A1043B
- Keywords:
-
- 1219 Gravity anomalies and Earth structure (0920;
- 7205;
- 7240);
- 6982 Tomography and imaging (7270;
- 8180);
- 8180 Tomography (6982;
- 7270)