@misc{indiciae2c965c4defd8,
  title = {Three dimensional images of geothermal systems: local earthquake P-wave velocity tomography at the Hengill and Krafla geothermal areas, Iceland, and The Geysers, California},
  author = {B.R. Julian and A. Prisk and G.R. Foulger and J.R. Evans},
  year = {1993},
  url = {https://pubs.usgs.gov/publication/70017441},
  note = {Source identifier: 70017441}
}