Elastic multipole theory and seismic moment
- 1 October 1971
- journal article
- Published by Seismological Society of America (SSA) in Bulletin of the Seismological Society of America
- Vol. 61 (5) , 1321-1326
- https://doi.org/10.1785/bssa0610051321
Abstract
Relationships between dynamic and static elastic multipoles derived from a general solution of the elastic-wave equation allow the direct application of results from elastostatic theory to problems in earthquake mechanism. For any theoretical model, the impulse of wave displacement (with can easily be found from long-period seismograms) can be simply derived from the far-field static dilation. Application to a generalized dislocation model shows that seismic moment is properly a tensor.Keywords
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