- California Geological Survey16
- California. Department of Conservation14
- Marshall, Gerald14
- Mendes, Eric14
- Navarro, Fernando10
- Powell, Susan10
- International Association of Seismology and Physics of the Earth's Interior7
- International Heat Flow Commission7
- Oklahoma State University. Department of Geography. Cartography Service7
- Rosenberg, Lewis I.4
- Monterey County (Calif.)2
- Bethe, Anne-Laure1
- Blackburn, Laura1
- Faucherre, Nicolas, 1957-1
- Fire and Resource Assessment Program (Calif.)1
- Geological Survey (U.S.)1
- Gherdevich, Davide1
- Henriot, Christian1
- Hopkins Marine Station1
- Instituto Brasileiro de Geografia e EstatÃstica1
