2022 Volcanic activity in Alaska and the Northern Mariana Islands—Summary of events and response of the Alaska Volcano Observatory, 2025

Orr, T.R., Dietterich, H.R., Grapenthin, R., Haney, M.M., Loewen, M.W., Saunders-Schultz, P., Tan, D., Waythomas, C.F., and Wech, A.G., 2025, 2022 Volcanic activity in Alaska and the Northern Mariana Islands-Summary of events and response of the Alaska Volcano Observatory: U.S. Geological Survey Scientific Investigations Report 2024-5108, 46 p. https://doi.org/ 10.3133/sir20245108

Identifying precursors and tracking pulses of magma ascent in multidisciplinary data during the 2018–2023 phreatomagmatic eruption at Semisopochnoi Island, Alaska, 2025

Lyons, J.J., Tan, D., Angarita, M., Loewen, M.W., Lopez, T., Grapenthin, R., Hotovec-Ellis, A.J., Fee, D., and Haney, M.W., 2025, Identifying precursors and tracking pulses of magma ascent in multidisciplinary data during the 2018–2023 phreatomagmatic eruption at Semisopochnoi Island, Alaska: Journal of Volcanology and Geothermal Research v. 463, 108329. https://doi.org/10.1016/j.jvolgeores.2025.108329

Inferring eruption dynamics from seismometer tilt - A case study of Erebus and Augustine Volcanoes, 2025

Christofferson, M.S., Grapenthin, R., Angarita, M., Aster, R.C., Chaput, J., and Kyle, P.R., 2025, Inferring eruption dynamics from seismometer tilt: A case study of Erebus and Augustine Volcanoes: Journal of Geophysical Research Solid Earth v. 130, no. 4, e2024JB030657, https://doi.org/10.1029/2024JB030657.

Vent-specific unrest at Pavlof Volcano, Alaska - Insights from multidisciplinary data, 2025

Tan, D., Fee, D., Izbekov, P., Lopez, T., Girona, T., Burgos, V., McNutt, S., Haney, M., Wasser, V., Larsen, J., Grapenthin, R., Angarita, M., Saunders-Shultz, P., Shreve, T., and Moshrefzadeh, J., 2025, Vent-specific unrest at Pavlof Volcano, Alaska - Insights from multidisciplinary data: Journal of Volcanology and Geothermal Research v. 468, 108465. https://doi.org/10.1016/j.jvolgeores.2025.108465

2021 Volcanic activity in Alaska and the Commonwealth of the Northern Mariana Islands - Summary of events and response of the Alaska Volcano Observatory, 2024

Orr, T.R., Dietterich, H.R., Fee D., Girona, T., Grapenthin, R., Haney, M.M., Loewen, M.W., Lyons, J.J., Power, J.A., Schwaiger, H.F., Schneider, D.J., Tan, D., Toney, L., Wasser, V.K., and Waythomas, C.F., 2024, 2021 Volcanic activity in Alaska and the Commonwealth of the Northern Mariana Islands - Summary of events and response of the Alaska Volcano Observatory: U.S. Geological Survey Scientific Investigations Report 2024-5014, 64 p. https://doi.org/10.3133/sir20245014.

From field station to forecast: managing data at the Alaska Volcano Observatory, 2024

Coombs, M.L., Cameron, C.E., Dietterich, H.R., Boyce, E.S., Wech, A.G., Grapenthin, R., Wallace, K.L., Parker, T., Lopez, T., Crass, S., Fee, D., Haney, M.M., Ketner, D., Loewen, M.W., Lyons, J.J., Nakai, J.S., Power, J.A., Botnick, S., Brewster, I., Enders, M.L., Harmon, D., Kelly, P.J., and Randall, M., 2024, From field station to forecast: managing data at the Alaska Volcano Observatory: Bulletin of Volcanology v. 86, 79. https://doi.org/10.1007/s00445-024-01766-0

The Alaska Makushin Volcano 2016–2018 inflation and its potential relation to the 2020 earthquake swarm, from GNSS observations, 2024

Cheng, Y., and Grapenthin, R., 2024, The Alaska Makushin Volcano 2016–2018 inflation and its potential relation to the 2020 earthquake swarm, from GNSS observations: Journal of Volcanology and Geothermal Research in press, 108010. https://doi.org/10.1016/j.jvolgeores.2024.108010

Versatile modeling of deformation (VMOD) inversion framework - Application to 20 years of observations at Westdahl Volcano and Fisher Caldera, Alaska, US, 2024

Angarita, M., Grapenthin, R., Henderson, S., Christofferson, M., and Anderson, K.R., 2024, Versatile modeling of deformation (VMOD) inversion framework - Application to 20 years of observations at Westdahl Volcano and Fisher Caldera, Alaska, US: Geochemistry, Geophysics, Geosystems v. 25, no. 4, e2023GC011341. https://doi.org/10.1029/2023GC011341

Multiple magma sources beneath the Okmok Caldera as inferred from local earthquake tomography, 2022

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.

Quantifying large-scale surface change using SAR amplitude images: crater morphology changes during the 2019–2020 Shishaldin Volcano eruption, 2022

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.

Return from dormancy: Rapid inflation and seismic unrest driven by transcrustal magma transfer at Mt. Edgecumbe (L'ux Shaa) Volcano, Alaska., 2022

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.

Geodetic observations during the 2009 eruption of Redoubt Volcano, Alaska, 2013

Grapenthin, 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

Volcano deformation and subdaily GPS products, 2012

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