Alaska Volcano Observatory

Tim Orr

Department:	Alaska Volcano Observatory
Institute:	USGS
Address:	Anchorage, AK 99508
Discipline(s):	Geology

send email message

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.

2019 Volcanic activity in Alaska—Summary of events and response of the Alaska Volcano Observatory, 2023

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.

http://dx.doi.org/10.3133/sir20235039

Full-text PDF : 14.3 MB

2018 Volcanic activity in Alaska—Summary of events and response of the Alaska Volcano Observatory, 2023

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.

http://dx.doi.org/10.3133/sir20235029

Full-text PDF : 35.5 MB

Development, structure, and behavior of a perched lava channel at Kīlauea Volcano, Hawaiʻi, during 2007, 2022

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.

http://dx.doi.org/10.1016/j.jvolgeores.2022.107637.

Digital elevation models and orthoimagery from the 2018 eruption of Veniaminof, Alaska, 2021

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.

http://dx.doi.org/10.5066/P9VEFFRX

publication on ScienceBase

Pushing the Volcanic Explosivity Index to its limits and beyond: Constraints from exceptionally weak explosive eruptions at Kilauea in 2008, 2013

Houghton, 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 .

http://dx.doi.org/10.1130/G34146.1