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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.

[List staff by discipline] [List staff alphabetically] [List staff by office location]
* When listing staff by discipline, some individuals may be listed more than once.

Ronni Grapenthin
Website: http://www.grapenthin.org
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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

Angarita, Mario, Grapenthin, Ronni, Plank, Simon, Meyer, F.J., and Dietterich, Hannah, 2022, Quantifying large-scale surface change using SAR amplitude images: crater morphology changes during the 2019-2020 Shishaldin Volcano Eruption: Journal of Geophysical Research: Solid Earth, v. 127, 19 p., 10.1029/2022JB024344.

Kasatkina, E., Koulakov, I., Grapenthin, R., Izbekov, P., Larsen, J. F., Al Arifi, N., and Saleh Ismail Qaysi, 2022, Multiple magma sources beneath the Okmok caldera as inferred from local earthquake tomography: Journal of Geophysical Research: Solid Earth, v. 127. doi.org/10.1029/2022JB024656.
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Grapenthin, Ronni, Cheng, Yitian, Angarita, Mario, Tan, Darren, Meyer, F.J., Fee, David, and Wech, Aaron, 2022, Return from dormancy: Reapid inflation and seismic unrest driven by transcrustal magma transfer at Mt. Edgecumbe (L'ux Shaa) Volcano, Alaska: Geophysical Research Letters, v. 49, 10p., 10.1029/2022GL099464.

citation imageGrapenthin, Ronni, Freymueller, J.T., and Kaufman, A.M., 2013, Geodetic observations during the 2009 eruption of Redoubt Volcano, Alaska: Journal of Volcanology and Geothermal Research, v. 259, p. 115-132, doi:10.1016/j.jvolgeores.2012.04.021

Grapenthin, R., 2012, Volcano deformation and subdaily GPS products: University of Alaska Fairbanks Ph.D. dissertation, 169 p.

Grapenthin, Ronni, Sigmundsson, Freysteinn, Ofeigsson, Benedikt, and Sturkell, Erik, 2010, Surface loading affects internal pressure source characteristics derived from volcano deformation signals [abs.]: Geophysical Research Abstracts, v. 12, 1 p.

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