scholarly journals Near-source velocity structure and isotropic moment tensors: A case study of the Long Valley Caldera

2001 ◽  
Vol 28 (9) ◽  
pp. 1815-1818 ◽  
Author(s):  
Mark Panning ◽  
Douglas Dreger ◽  
Hrvoje Tkalčić
Keyword(s):  
Velocity Structure ◽  
Long Valley Caldera ◽  
Moment Tensors ◽  
Long Valley ◽  
Source Velocity

Velocity structure of the Long Valley Caldera from the inversion of local earthquakePandStravel times

1993 ◽  
Vol 98 (B11) ◽  
pp. 19869-19879 ◽  
Author(s):  
Arturo E. Romero ◽  
Thomas V. McEvilly ◽  
Ernest L. Majer ◽  
Alberto Michelini
Keyword(s):  
Velocity Structure ◽  
Long Valley Caldera ◽  
Long Valley

Pre-S observations at station SLK, NW of Long Valley caldera, California, and their relation to possible magma bodies

1989 ◽  
Vol 79 (6) ◽  
pp. 1894-1904
Author(s):  
William A. Peppin ◽  
Thomas W. Delaplain ◽  
J. Scott Lewis
Keyword(s):  
Least Squares ◽  
Particle Motion ◽  
Velocity Structure ◽  
Vertical Component ◽  
The Other ◽  
Long Valley Caldera ◽  
Distance Range ◽  
Single Station ◽  
Long Valley ◽  
Aperture Array

Abstract The authors describe and catalog 280 observations of a seismic phase taken at the single station SLK, NW of Long Valley caldera. These observations are observed to precede S by a more or less constant 1.6 sec in the distance range 30 to 90 km, and are closely fit by the least-squares line TSLK = (0.2853 ± 0.0009)Δ − (0.9029 ± 0.052). These observations can only be explained in terms of laterally heterogeneous velocity structure near the caldera. The model proposed here—that these so-called “SLK phases” result from an S-to-P conversion across a dipping planar structure NW of the caldera in the vicinity of Inyo Craters—fits not only these observations, but is consistent with the data presented in two recent papers (Luetgert and Mooney, 1985; Zucca et al., 1987). On the other hand, the data presented here are inconsistent with the models proposed by those authors involving deep reflections from magma bodies associated with the caldera. Furthermore, these observations are not related to the magma bodies within the caldera proposed by Sanders (1984), as suggested in previous abstracts. The original vertical-component observations at SLK are supplemented by three-component observations obtained on a small (several hundred meters aperture) array near SLK, which identify the SLK phase unambiguously as having longitudinal particle motion, consistent with the proposal that it is a S-to-P conversion occurring NW of the caldera boundary.

Bibliography of literature pertaining to Long Valley Caldera and associated volcanic fields

2005 ◽  
Author(s):  
John W. Ewert ◽  
Christopher J. Harpel ◽  
Suzanna K. Brooks
Keyword(s):  
Long Valley Caldera ◽  
Long Valley ◽  
Volcanic Fields
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