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AVO is a very extended family. Some people work full time for the observatory, others well under half time. Others perform essential work, but only draw operating expenses. Several agencies contribute personnel at several locations. A wide variety of disciplines are represented, including geophysics, geology, glaciology, hydrology, geochemistry, remote sensing, computing, electronics, and administration. The following people are the paid staff, and share among themselves about 22 Full Time Equivalent positions.

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* When listing staff by discipline, some individuals may be listed more than once.

Tim Orr
Department: Alaska Volcano Observatory
Institute: USGS
Address: Anchorage, AK 99508
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Geologic mapping and interpretation of Quaternary and recent eruptive products at active Alaskan volcanoes; hazards assessment; eruption crisis response including observation and documentation of volcanic activity, and dissemination of information to Federal, State, and local authorities as well as the media, scientific community, and the general public.

Orr, T.R., Cameron, C.E., Dietterich, H.R., Dixon, J.P., Enders, M.L., Grapenthin, R., Iezzi, A.M., Loewen, M.W., Power, J.A., Searcy, C., Tepp, G., Toney, L., Waythomas, C.F., and Wech, A.G., 2023, 2019 Volcanic activity in Alaska - Summary of events and response of the Alaska Volcano Observatory: U.S. Geological Survey Scientific Investigations Report 2023-5039, 64 p., https://doi.org/10.3133/sir20235039.
Download PDF Full-text PDF : 14.3 MB

Cameron, C.E., Orr, T.R., Dixon, J.P., Dietterich, H.R., Waythomas, C.F., Iezzi, A.M., Power, J.A., Searcy, C., Grapenthin, R., Tepp, G., Wallace, K.L., Lopez, T.M., Degrandpre, K., and Perreault, J.M., 2023, 2018 Volcanic activity in Alaska - Summary of events and response of the Alaska Volcano Observatory: U.S. Geological Survey Scientific Investigations Report 2023-5029, 68 p., https://doi.org/10.3133/sir20235029.
Download PDF Full-text PDF : 35.5 MB

Orr, T.R., Llewellin, E.W.,and Patrick, M.R., 2022, Development, structure, and behavior of a perched lava channel at Kilauea Volcano, Hawaiʻi, during 2007: Journal of Volcanology and Geothermal Research, v. 430, 18 p., doi.org/10.1016/j.jvolgeores.2022.107637.

Dietterich, H.R., Loewen, M.W., Laker, M., Orr, T., and Hults, C., 2021, Digital elevation models and orthoimagery from the 2018 eruption of Veniaminof, Alaska: U.S. Geological Survey data release, https://doi.org/10.5066/P9VEFFRX.
Download publication on ScienceBase

citation imageHoughton, B.F., Swanson, D.A., Rausch, J., Carey, R.J., Fagents, S.A., and Orr, T.R., 2013, Pushing the Volcanic Explosivity Index to its limits and beyond: Constraints from exceptionally weak explosive eruptions at Kilauea in 2008: Geology, v. 41, n. 6, p. 627- 630, doi:10.1130/G34146.1 .

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