Lg and Rg waves on the California regional networks from the December 23, 1985 Nahanni earthquake
Journal of Geophysical Research
By: L. A. Wald and T. H. Heaton
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Abstract
Investigates Lg and Rg propagation in California using the central and southern California regional networks. The waveforms recorded from the December 23, 1985, Nahanni, Canada, earthquake are used to construct three profiles along the propagation path (almost N-S) and three perpendicular to the propagation path (almost E-W) to look at the nature of propagation of these two types of surface waves. Groups of records from stations in various geological and tectonic provinces in California are also examined in order to establish regional characteristics of the surface waves, it is found that the propagation characteristics of Lg differ from those of Rg across California; Lg waves are apparently more sensitive to crustal heterogeneities. The most striking observations are the similarity of coda for both the Lg and the Rg waves within geologic provinces and the marked difference in coda between regions. -from Authors
| Publication type | Article |
|---|---|
| Publication Subtype | Journal Article |
| Title | Lg and Rg waves on the California regional networks from the December 23, 1985 Nahanni earthquake |
| Series title | Journal of Geophysical Research |
| Volume | 96 |
| Issue | B7 |
| Year Published | 1991 |
| Language | English |
| Larger Work Type | Article |
| Larger Work Subtype | Journal Article |
| Larger Work Title | Journal of Geophysical Research |
| Google Analytic Metrics | Metrics page |