Surface motion of a semi-cylindrical alluvial valley for incident plane SH waves
- 1 December 1971
- journal article
- Published by Seismological Society of America (SSA) in Bulletin of the Seismological Society of America
- Vol. 61 (6) , 1755-1770
- https://doi.org/10.1785/bssa0610061755
Abstract
The nature of surface motion in and around a semi-cylindrical alluvial valley is investigated for the case of incident plane SH waves. The closed-form analytical solution of this two-dimensional wave-propagation problem displays complicated wave-interference phenomena characterized by nearly-standing wave patterns, rapid changes in the ground-motion amplification along the free surface of the valley, and significant dependence of motion on the incidence angle of SH waves. Although simple, this model may qualitatively explain some vibrating characteristics of long and deep alluvial valleys.Keywords
This publication has 6 references indexed in Scilit:
- Gravity waves in the 1954 Fallon, Nevada, earthquakeBulletin of the Seismological Society of America, 1971
- Some observations of gravity waves in the 1960 Chile earthquakeBulletin of the Seismological Society of America, 1970
- Love waves in nonuniform wave guides: Finite difference calculationsJournal of Geophysical Research, 1970
- Surface motion of a layered medium having an irregular interface due to incident planeSHwavesJournal of Geophysical Research, 1970
- Crustal reflection of planeSHwavesJournal of Geophysical Research, 1960
- SEISMIC EXPLORATIONS ON THE FLOOR OF YOSEMITE VALLEY, CALIFORNIAGSA Bulletin, 1956