An analysis of the 'Benham' aftershock, sequence using Canadian recordings
| Autor: | D. H. Weichert, F. M. Anglin, P. W. Basham |
|---|---|
| Rok vydání: | 1970 |
| Předmět: |
Atmospheric Science
Ecology Spectral ratio Test site Paleontology Soil Science Magnitude (mathematics) Forestry Aquatic Science Oceanography Latitude symbols.namesake Sequence (geology) Geophysics Space and Planetary Science Geochemistry and Petrology Earth and Planetary Sciences (miscellaneous) symbols Rayleigh wave Longitude Aftershock Seismology Geology Earth-Surface Processes Water Science and Technology |
| Zdroj: | Journal of Geophysical Research. 75:1545-1556 |
| ISSN: | 0148-0227 |
| DOI: | 10.1029/jb075i008p01545 |
| Popis: | The Nevada Test Site (NTS) explosion Benham caused a series of aftershocks well distributed over the magnitude range up to m 4.6, a range of particular interest to Canadian studies of detection and identification of NTS events. The results of an analysis of the aftershocks and other NTS explosions are reported here. The Yellowknife array (Δ = 25°) and the Canadian network (12°≤Δ≤49°) short-period facilities can detect P waves for all aftershocks larger than m 3.6, but not for aftershocks smaller than m 3.3; long-period facilities can detect Rayleigh waves for all aftershocks larger than m 4.0. The M versus m and P-wave spectral ratio discriminants produce excellent separation between the larger aftershocks and similar body-wave magnitude NTS explosions. An rms scatter of about 80 km in latitude and 50 km in longitude of the Yellowknife array epicenters does not allow resolution of the real differences in aftershock and explosion locations. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|
Plný text