Peter Kelly
I am a research geologist based at the Cascades Volcano Observatory. I work to better understand magmatic and hydrothermal systems through research and monitoring of volcanic gas emissions.
I work on US volcanoes as a member of the USGS Volcano Emissions Project and internationally as a member of the USAID-USGS Volcano Disaster Assistance Program (VDAP). This work includes an emphasis on developing and applying new technologies to implement real-time gas monitoring on volcanoes. Prior to joining the USGS in 2008, I spent two years at the University of New Hampshire working on a NOAA-funded project to monitor air pollution.
Education and Certifications
M.S., Geochemistry, New Mexico Institute of Mining and Technology, Socorro, NM, 2006
B.S., Geology, Northeastern University, Boston, MA, 2003
Science and Products
The 2017-19 activity at Mount Agung in Bali (Indonesia): Intense unrest, monitoring, crisis response, evacuation, and eruption
The 2018 rift eruption and summit collapse of Kilauea Volcano
Insights into the mechanisms of phreatic eruptions from continuous high frequency volcanic gas monitoring: Rincón de la Vieja volcano, Costa Rica
Evolution of the 2015 Cotopaxi eruption revealed by combined geochemical & seismic observations
Multi-year high-frequency hydrothermal monitoring of selected high-threat Cascade Range volcanoes
Construction of probabilistic event trees for eruption forecasting at Sinabung volcano, Indonesia 2013–14
Monitoring gas and heat emissions at Norris Geyser Basin, Yellowstone National Park, USA based on a combined eddy covariance and Multi-GAS approach
Evidence for degassing of fresh magma during the 2004-2008 eruption of Mount St. Helens: Subtle signals from the hydrothermal system
Magmatic degassing, lava dome extrusion, and explosions from Mount Cleveland volcano, Alaska, 2011–2015: Insight into the continuous nature of volcanic activity over multi-year timescales
Long period seismicity and very long period infrasound driven by shallow magmatic degassing at Mount Pagan, Mariana Islands
Long period (LP) seismicity and very long period infrasound (iVLP) were recorded during continuous degassing from Mount Pagan, Mariana Islands, in July 2013 to January 2014. The frequency content of the LP and iVLP events and delay times between the two arrivals were remarkably stable and indicate nearly co-located sources. Using phase-weighted stacking over similar events to dampen noise, we find
Decadal-scale variability of diffuse CO2 emissions and seismicity revealed from long-term monitoring (1995–2013) at Mammoth Mountain, California, USA
Rapid chemical evolution of tropospheric volcanic emissions from Redoubt Volcano, Alaska, based on observations of ozone and halogen-containing gases
Science and Products
The 2017-19 activity at Mount Agung in Bali (Indonesia): Intense unrest, monitoring, crisis response, evacuation, and eruption
The 2018 rift eruption and summit collapse of Kilauea Volcano
Insights into the mechanisms of phreatic eruptions from continuous high frequency volcanic gas monitoring: Rincón de la Vieja volcano, Costa Rica
Evolution of the 2015 Cotopaxi eruption revealed by combined geochemical & seismic observations
Multi-year high-frequency hydrothermal monitoring of selected high-threat Cascade Range volcanoes
Construction of probabilistic event trees for eruption forecasting at Sinabung volcano, Indonesia 2013–14
Monitoring gas and heat emissions at Norris Geyser Basin, Yellowstone National Park, USA based on a combined eddy covariance and Multi-GAS approach
Evidence for degassing of fresh magma during the 2004-2008 eruption of Mount St. Helens: Subtle signals from the hydrothermal system
Magmatic degassing, lava dome extrusion, and explosions from Mount Cleveland volcano, Alaska, 2011–2015: Insight into the continuous nature of volcanic activity over multi-year timescales
Long period seismicity and very long period infrasound driven by shallow magmatic degassing at Mount Pagan, Mariana Islands
Long period (LP) seismicity and very long period infrasound (iVLP) were recorded during continuous degassing from Mount Pagan, Mariana Islands, in July 2013 to January 2014. The frequency content of the LP and iVLP events and delay times between the two arrivals were remarkably stable and indicate nearly co-located sources. Using phase-weighted stacking over similar events to dampen noise, we find