Emily Montgomery-Brown
As a research geophysicist focusing on volcano geodesy, I analyze ground- and satellite-based data to explore how magma moves underground, and discover other ways volcanoes deform.
Prior to joining the USGS, I was a visiting researcher at the Earthquake Research Institute at the University of Tokyo studying hydrothermal deformation at Miyake Jima volcano and an NSF post-doctoral fellow at the University of Wisconsin studying the seismic signals associated with flank sector failure at Kilauea volcano.
Professional Experience
Co-chair of the joint IAVCEI/IAG Volcano Geodesy Commission
Prior AGU Geodesy section OSPA Coordinator
Education and Certifications
Ph.D. in Geophysics, Stanford University, September 2008
Thesis Title: Time dependent deformation of Kilauea volcano, Hawaii Advisor: Paul Segall
M.S. in Geophysics, Stanford University, June 2005
B.S. with High Honors in Geology with minor in Mathematics, New Mexico Institute of Mining and Technology, May 2002
Affiliations and Memberships*
American Geophysical Union
IAVCEI
Science and Products
Filter Total Items: 29
Inflation leading to a Slow Slip Event and volcanic unrest at Mt. Etna in 2016: Insights from CGPS data Inflation leading to a Slow Slip Event and volcanic unrest at Mt. Etna in 2016: Insights from CGPS data
Global Positioning System (CGPS) data from Mount Etna between May 2015 and September 2016 show intense inflation and a concurrent Slow Slip Event (SSE) from 11 December 2015 to 17 May 2016. In May 2016, an eruptive phase started from the summit craters, temporarily stopping the ongoing inflation. The CGPS data presented here give us the opportunity to determine (1) the source of the...
Authors
V. Bruno, M. Mattia, Emily K. Montgomery-Brown, M. Rossi, D. Scandura
Long Valley caldera and the UCERF depiction of Sierra Nevada range-front faults Long Valley caldera and the UCERF depiction of Sierra Nevada range-front faults
Long Valley caldera lies within a left-stepping offset in the north-northwest-striking Sierra Nevada range-front normal faults with the Hilton Creek fault to the south and Hartley Springs fault to the north. Both Uniform California Earthquake Rupture Forecast (UCERF) 2 and its update, UCERF3, depict slip on these major range-front normal faults as extending well into the caldera, with...
Authors
David P. Hill, Emily K. Montgomery-Brown
Tremor-genic slow slip regions may be deeper and warmer and may slip slower than non-tremor-genic regions Tremor-genic slow slip regions may be deeper and warmer and may slip slower than non-tremor-genic regions
Slow slip events (SSEs) are observed worldwide and often coincide with tectonic tremor. Notable examples of SSEs lacking observed tectonic tremor, however, occur beneath Kīlauea Volcano, Hawaii, the Boso Peninsula, Japan, near San Juan Bautista on the San Andreas Fault, California, and recently in Central Ecuador. These SSEs are similar to other worldwide SSEs in many ways (e.g., size or...
Authors
Emily Montgomery-Brown, Ellen M. Syracuse
Renewed inflation of Long Valley Caldera, California (2011 to 2014) Renewed inflation of Long Valley Caldera, California (2011 to 2014)
Slow inflation began at Long Valley Caldera in late 2011, coinciding with renewed swarm seismicity. Ongoing deformation is concentrated within the caldera. We analyze this deformation using a combination of GPS and InSAR (TerraSAR-X) data processed with a persistent scatterer technique. The extension rate of the dome-crossing baseline during this episode (CA99 to KRAC) is 1 cm/yr...
Authors
Emily Montgomery-Brown, Charles W. Wicks, Peter F. Cervelli, John O. Langbein, Jerry L. Svarc, David R. Shelly, David P. Hill, Michael Lisowski
Delicate balance of magmatic-tectonic interaction at Kilauea Volcano, Hawai`i, revealed from slow slip events: Chapter 13 Delicate balance of magmatic-tectonic interaction at Kilauea Volcano, Hawai`i, revealed from slow slip events: Chapter 13
Eleven slow slip events (SSEs) have occurred on the southern flank of Kilauea Volcano, Hawai’i, since 1997 through 2014. We analyze this series of SSEs in the context of Kilauea’s magma system to assess whether or not there are interactions between these tectonic events and eruptive/intrusive activity. Over time, SSEs have increased in magnitude and become more regular, with interevent...
Authors
Emily Montgomery-Brown, Michael P. Poland, Asta Miklius
Magma supply, storage, and transport at shield-stage Hawaiian volcanoes Magma supply, storage, and transport at shield-stage Hawaiian volcanoes
The characteristics of magma supply, storage, and transport are among the most critical parameters governing volcanic activity, yet they remain largely unconstrained because all three processes are hidden beneath the surface. Hawaiian volcanoes, particularly Kīlauea and Mauna Loa, offer excellent prospects for studying subsurface magmatic processes, owing to their accessibility and...
Authors
Michael P. Poland, Asta Miklius, Emily K. Montgomery-Brown
Science and Products
Filter Total Items: 29
Inflation leading to a Slow Slip Event and volcanic unrest at Mt. Etna in 2016: Insights from CGPS data Inflation leading to a Slow Slip Event and volcanic unrest at Mt. Etna in 2016: Insights from CGPS data
Global Positioning System (CGPS) data from Mount Etna between May 2015 and September 2016 show intense inflation and a concurrent Slow Slip Event (SSE) from 11 December 2015 to 17 May 2016. In May 2016, an eruptive phase started from the summit craters, temporarily stopping the ongoing inflation. The CGPS data presented here give us the opportunity to determine (1) the source of the...
Authors
V. Bruno, M. Mattia, Emily K. Montgomery-Brown, M. Rossi, D. Scandura
Long Valley caldera and the UCERF depiction of Sierra Nevada range-front faults Long Valley caldera and the UCERF depiction of Sierra Nevada range-front faults
Long Valley caldera lies within a left-stepping offset in the north-northwest-striking Sierra Nevada range-front normal faults with the Hilton Creek fault to the south and Hartley Springs fault to the north. Both Uniform California Earthquake Rupture Forecast (UCERF) 2 and its update, UCERF3, depict slip on these major range-front normal faults as extending well into the caldera, with...
Authors
David P. Hill, Emily K. Montgomery-Brown
Tremor-genic slow slip regions may be deeper and warmer and may slip slower than non-tremor-genic regions Tremor-genic slow slip regions may be deeper and warmer and may slip slower than non-tremor-genic regions
Slow slip events (SSEs) are observed worldwide and often coincide with tectonic tremor. Notable examples of SSEs lacking observed tectonic tremor, however, occur beneath Kīlauea Volcano, Hawaii, the Boso Peninsula, Japan, near San Juan Bautista on the San Andreas Fault, California, and recently in Central Ecuador. These SSEs are similar to other worldwide SSEs in many ways (e.g., size or...
Authors
Emily Montgomery-Brown, Ellen M. Syracuse
Renewed inflation of Long Valley Caldera, California (2011 to 2014) Renewed inflation of Long Valley Caldera, California (2011 to 2014)
Slow inflation began at Long Valley Caldera in late 2011, coinciding with renewed swarm seismicity. Ongoing deformation is concentrated within the caldera. We analyze this deformation using a combination of GPS and InSAR (TerraSAR-X) data processed with a persistent scatterer technique. The extension rate of the dome-crossing baseline during this episode (CA99 to KRAC) is 1 cm/yr...
Authors
Emily Montgomery-Brown, Charles W. Wicks, Peter F. Cervelli, John O. Langbein, Jerry L. Svarc, David R. Shelly, David P. Hill, Michael Lisowski
Delicate balance of magmatic-tectonic interaction at Kilauea Volcano, Hawai`i, revealed from slow slip events: Chapter 13 Delicate balance of magmatic-tectonic interaction at Kilauea Volcano, Hawai`i, revealed from slow slip events: Chapter 13
Eleven slow slip events (SSEs) have occurred on the southern flank of Kilauea Volcano, Hawai’i, since 1997 through 2014. We analyze this series of SSEs in the context of Kilauea’s magma system to assess whether or not there are interactions between these tectonic events and eruptive/intrusive activity. Over time, SSEs have increased in magnitude and become more regular, with interevent...
Authors
Emily Montgomery-Brown, Michael P. Poland, Asta Miklius
Magma supply, storage, and transport at shield-stage Hawaiian volcanoes Magma supply, storage, and transport at shield-stage Hawaiian volcanoes
The characteristics of magma supply, storage, and transport are among the most critical parameters governing volcanic activity, yet they remain largely unconstrained because all three processes are hidden beneath the surface. Hawaiian volcanoes, particularly Kīlauea and Mauna Loa, offer excellent prospects for studying subsurface magmatic processes, owing to their accessibility and...
Authors
Michael P. Poland, Asta Miklius, Emily K. Montgomery-Brown
*Disclaimer: Listing outside positions with professional scientific organizations on this Staff Profile are for informational purposes only and do not constitute an endorsement of those professional scientific organizations or their activities by the USGS, Department of the Interior, or U.S. Government