- International Association of Seismology and Physics of the Earth's Interior29
- International Heat Flow Commission29
- Oklahoma State University. Department of Geography. Cartography Service29
- California Geological Survey20
- Marshall, Gerald18
- Mendes, Eric18
- California. Department of Conservation16
- Daly, Chris13
- National Climatic Data Center (U.S.)13
- National Water and Climate Center (U.S.)13
- Patterson, Will13
- Taylor, George13
- United States. Defense Mapping Agency13
- Rosenberg, Lewis I.4
- California. Dept. of Conservation.2
- Fire and Resource Assessment Program (Calif.)2
- Monterey County (Calif.)2
- Bethe, Anne-Laure1
- Blackburn, Laura1
- Faucherre, Nicolas, 1957-1
