Pre-S phases recorded north of Long Valley Caldera: An investigation into their nature and geologic significance
AuthorLewis, John S.
AdvisorPeppin, William A.
Geological Sciences and Engineering
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A three-dimensional seismic array was set up to record pre-S phases north of the Long Valley caldera. Results indicate that the pre-S phase is a compressional wave approaching from the same azimuth and dip as the P phase. The pre-S phase is interpreted as possibly being the result of an S to P conversion.
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