Susan E. Hough
Susan Hough is a scientist in the Earthquake Hazards Program.
Science and Products
Filter Total Items: 127
Initial assessment of the intensity distribution of the 2011 Mw5.8 Mineral, Virginia, earthquake Initial assessment of the intensity distribution of the 2011 Mw5.8 Mineral, Virginia, earthquake
The intensity data collected by the U.S. Geological Survey (USGS) "Did You Feel It?" (DYFI) Website (USGS, DYFI; http://earthquake.usgs.gov/earthquakes/dyfi/events/se/082311a/us/index.html, last accessed Sept 2011) for the Mw5.8 Mineral, Virginia, earthquake, are unprecedented in their spatial richness and geographical extent. More than 133,000 responses were received during the first...
Authors
Susan E. Hough
Frequency-dependent attenuation of the Hispaniola Island region of the Caribbean Sea Frequency-dependent attenuation of the Hispaniola Island region of the Caribbean Sea
We determine frequency-dependent attenuation 1/Q(f) for the Hispaniola region using direct S and Lg waves over five distinct passbands from 0.5 to 16 Hz. Data consist of 832 high-quality vertical and horizontal component waveforms recorded on short-period and broadband seismometers from the devastating 12 January 2010 M 7.0 Haiti earthquake and the rich sequence of aftershocks. For the...
Authors
D. McNamara, M. Meremonte, J.Z. Maharrey, S-L. Mildor, J.R. Altidore, D. Anglade, S. E. Hough, D. Given, H. Benz, L. Gee, A. Frankel
A terrain-based site characterization map of California with implications for the contiguous United States A terrain-based site characterization map of California with implications for the contiguous United States
We present an approach based on geomorphometry to predict material properties and characterize site conditions using the VS30 parameter (time‐averaged shear‐wave velocity to a depth of 30 m). Our framework consists of an automated terrain classification scheme based on taxonomic criteria (slope gradient, local convexity, and surface texture) that systematically identifies 16 terrain...
Authors
Alan K. Yong, Susan E. Hough, Junko Iwahashi, Amy Braverman
Site characterization and site response in Port-au-Prince, Haiti Site characterization and site response in Port-au-Prince, Haiti
Waveform analysis of aftershocks of the Mw7.0 Haiti earthquake of 12 January 2010 reveals amplification of ground motions at sites within the Cul de Sac valley in which Port-au-Prince is situated. Relative to ground motions recorded at a hard-rock reference site, peak acceleration values are amplified by a factor of approximately 1.8 at sites on low-lying Mio-Pliocene deposits in central...
Authors
Susan E. Hough, Alan K. Yong, Jean Robert Altidor, Dieuseul Anglade, Douglas D. Given, Saint-Louis Mildor
Seismic zonation of Port-Au-Prince using pixel- and object-based imaging analysis methods on ASTER GDEM Seismic zonation of Port-Au-Prince using pixel- and object-based imaging analysis methods on ASTER GDEM
We report about a preliminary study to evaluate the use of semi-automated imaging analysis of remotely-sensed DEM and field geophysical measurements to develop a seismic-zonation map of Port-au-Prince, Haiti. For in situ data, VS30 values are derived from the MASW technique deployed in and around the city. For satellite imagery, we use an ASTER GDEM of Hispaniola. We apply both pixel-...
Authors
Alan Yong, Susan E. Hough, Brady R. Cox, Ellen M. Rathje, Jeff Bachhuber, Ranon Dulberg, David Hulslander, Lisa Christiansen, Michael J. Abrams
Toward a consistent model for strain accrual and release for the New Madrid Seismic Zone, central United States Toward a consistent model for strain accrual and release for the New Madrid Seismic Zone, central United States
At the heart of the conundrum of seismogenesis in the New Madrid Seismic Zone is the apparently substantial discrepancy between low strain rate and high recent seismic moment release. In this study we revisit the magnitudes of the four principal 1811–1812 earthquakes using intensity values determined from individual assessments from four experts. Using these values and the grid search...
Authors
S. E. Hough, M. Page
Science and Products
Filter Total Items: 127
Initial assessment of the intensity distribution of the 2011 Mw5.8 Mineral, Virginia, earthquake Initial assessment of the intensity distribution of the 2011 Mw5.8 Mineral, Virginia, earthquake
The intensity data collected by the U.S. Geological Survey (USGS) "Did You Feel It?" (DYFI) Website (USGS, DYFI; http://earthquake.usgs.gov/earthquakes/dyfi/events/se/082311a/us/index.html, last accessed Sept 2011) for the Mw5.8 Mineral, Virginia, earthquake, are unprecedented in their spatial richness and geographical extent. More than 133,000 responses were received during the first...
Authors
Susan E. Hough
Frequency-dependent attenuation of the Hispaniola Island region of the Caribbean Sea Frequency-dependent attenuation of the Hispaniola Island region of the Caribbean Sea
We determine frequency-dependent attenuation 1/Q(f) for the Hispaniola region using direct S and Lg waves over five distinct passbands from 0.5 to 16 Hz. Data consist of 832 high-quality vertical and horizontal component waveforms recorded on short-period and broadband seismometers from the devastating 12 January 2010 M 7.0 Haiti earthquake and the rich sequence of aftershocks. For the...
Authors
D. McNamara, M. Meremonte, J.Z. Maharrey, S-L. Mildor, J.R. Altidore, D. Anglade, S. E. Hough, D. Given, H. Benz, L. Gee, A. Frankel
A terrain-based site characterization map of California with implications for the contiguous United States A terrain-based site characterization map of California with implications for the contiguous United States
We present an approach based on geomorphometry to predict material properties and characterize site conditions using the VS30 parameter (time‐averaged shear‐wave velocity to a depth of 30 m). Our framework consists of an automated terrain classification scheme based on taxonomic criteria (slope gradient, local convexity, and surface texture) that systematically identifies 16 terrain...
Authors
Alan K. Yong, Susan E. Hough, Junko Iwahashi, Amy Braverman
Site characterization and site response in Port-au-Prince, Haiti Site characterization and site response in Port-au-Prince, Haiti
Waveform analysis of aftershocks of the Mw7.0 Haiti earthquake of 12 January 2010 reveals amplification of ground motions at sites within the Cul de Sac valley in which Port-au-Prince is situated. Relative to ground motions recorded at a hard-rock reference site, peak acceleration values are amplified by a factor of approximately 1.8 at sites on low-lying Mio-Pliocene deposits in central...
Authors
Susan E. Hough, Alan K. Yong, Jean Robert Altidor, Dieuseul Anglade, Douglas D. Given, Saint-Louis Mildor
Seismic zonation of Port-Au-Prince using pixel- and object-based imaging analysis methods on ASTER GDEM Seismic zonation of Port-Au-Prince using pixel- and object-based imaging analysis methods on ASTER GDEM
We report about a preliminary study to evaluate the use of semi-automated imaging analysis of remotely-sensed DEM and field geophysical measurements to develop a seismic-zonation map of Port-au-Prince, Haiti. For in situ data, VS30 values are derived from the MASW technique deployed in and around the city. For satellite imagery, we use an ASTER GDEM of Hispaniola. We apply both pixel-...
Authors
Alan Yong, Susan E. Hough, Brady R. Cox, Ellen M. Rathje, Jeff Bachhuber, Ranon Dulberg, David Hulslander, Lisa Christiansen, Michael J. Abrams
Toward a consistent model for strain accrual and release for the New Madrid Seismic Zone, central United States Toward a consistent model for strain accrual and release for the New Madrid Seismic Zone, central United States
At the heart of the conundrum of seismogenesis in the New Madrid Seismic Zone is the apparently substantial discrepancy between low strain rate and high recent seismic moment release. In this study we revisit the magnitudes of the four principal 1811–1812 earthquakes using intensity values determined from individual assessments from four experts. Using these values and the grid search...
Authors
S. E. Hough, M. Page