TY  - RPRT
TI  - Three dimensional images of geothermal systems: local earthquake P-wave velocity tomography at the Hengill and Krafla geothermal areas, Iceland, and The Geysers, California
AU  - B.R. Julian
AU  - A. Prisk
AU  - G.R. Foulger
AU  - J.R. Evans
PY  - 1993
UR  - https://pubs.usgs.gov/publication/70017441
ID  - 70017441
ER  -