Susan E. Hough
Susan Hough is a scientist in the Earthquake Science Center.
Science and Products
Filter Total Items: 131
Ground motions from the 2015Mw 7.8 Gorkha, Nepal, earthquake constrained by a detailed assessment of macroseismic data Ground motions from the 2015Mw 7.8 Gorkha, Nepal, earthquake constrained by a detailed assessment of macroseismic data
To augment limited instrumental recordings of the Mw 7.8 Gorkha, Nepal, earthquake on 25 April 2015 (Nepali calendar: 12 Baisakh 2072, Bikram Samvat), we collected 3831 detailed media and first-person accounts of macroseismic effects that include sufficiently detailed information to assign intensities. The resulting intensity map reveals the distribution of shaking within and outside of...
Authors
Stacey Martin, Susan E. Hough, Charleen Hung
Introduction to the focus section on the 2015 Gorkha, Nepal, earthquake Introduction to the focus section on the 2015 Gorkha, Nepal, earthquake
It has long been recognized that Nepal faces high earthquake hazard, with the most recent large (Mw>7.5) events in 1833 and 1934. When the 25 April 2015Mw 7.8 Gorkha earthquake struck, it appeared initially to be a realization of worst fears. In spite of its large magnitude and proximity to the densely populated Kathmandu valley, however, the level of damage was lower than anticipated...
Authors
Susan E. Hough
The 21 May 2014 Mw 5.9 Bay of Bengal earthquake: macroseismic data suggest a high‐stress‐drop event The 21 May 2014 Mw 5.9 Bay of Bengal earthquake: macroseismic data suggest a high‐stress‐drop event
A modest but noteworthy Mw 5.9 earthquake occurred in the Bay of Bengal beneath the central Bengal fan at 21:51 Indian Standard Time (16:21 UTC) on 21 May 2014. Centered over 300 km from the eastern coastline of India (Fig. 1), it caused modest damage by virtue of its location and magnitude. However, shaking was very widely felt in parts of eastern India where earthquakes are uncommon...
Authors
Stacey Martin, Susan E. Hough
Shaking from injection-induced earthquakes in the central and eastern United States Shaking from injection-induced earthquakes in the central and eastern United States
In this study I consider the ground motions generated by 11 moderate (Mw4.0-5.6) earthquakes in the central and eastern United States that are thought or suspected to be induced by fluid injection. Using spatially rich intensity data from the USGS “Did You Feel It?” system, I show that the distance decay of intensities for all events is consistent with that observed for tectonic...
Authors
Susan E. Hough
Earthquake intensity distributions: a new view Earthquake intensity distributions: a new view
Pioneering work by Nicolas Ambraseys and many collaborators demonstrates both the tremendous value of macroseismic data and the perils of its uncritical assessment. In numerous publications he shows that neglect of original sources and/or failure to appreciate the context of historical accounts, as well as use of unreliable indicators such as landslid- ing to determine intensities...
Authors
Susan E. Hough
Crustal structure and fault geometry of the 2010 Haiti earthquake from temporary seismometer deployments Crustal structure and fault geometry of the 2010 Haiti earthquake from temporary seismometer deployments
Haiti has been the locus of a number of large and damaging historical earthquakes. The recent 12 January 2010 Mw 7.0 earthquake affected cities that were largely unprepared, which resulted in tremendous losses. It was initially assumed that the earthquake ruptured the Enriquillo Plantain Garden fault (EPGF), a major active structure in southern Haiti, known from geodetic measurements and...
Authors
Roby Douilly, Jennifer S. Haase, William L. Ellsworth, Marie-Paule Bouin, Eric Calais, Steeve J. Symithe, John G. Armbruster, Bernard Mercier de Lepinay, Anne Deschamps, Saint‐Louis Mildor, Mark E. Meremonte, Susan E. Hough
Spatial variability of "Did You Feel It?" intensity data: insights into sampling biases in historical earthquake intensity distributions Spatial variability of "Did You Feel It?" intensity data: insights into sampling biases in historical earthquake intensity distributions
Recent parallel development of improved quantitative methods to analyze intensity distributions for historical earthquakes and of web‐based systems for collecting intensity data for modern earthquakes provides an opportunity to reconsider not only important individual historical earthquakes but also the overall characterization of intensity distributions for historical events. The focus...
Authors
Susan E. Hough
Reverberations on the watery element: A significant tsunamigenic historical earthquake offshore the Carolina coast Reverberations on the watery element: A significant tsunamigenic historical earthquake offshore the Carolina coast
We investigate an early nineteenth-century earthquake that has been previously cataloged but not previously investigated in detail or recognized as a significant event. The earthquake struck at approximately 4:30 a.m. LT on 8 January 1817 and was widely felt throughout the southeastern and mid-Atlantic United States. Around 11:00 a.m. the same day, an eyewitness described a 12-inch tide...
Authors
Susan E. Hough, Jeffrey Munsey, Steven N. Ward
Missing great earthquakes Missing great earthquakes
The occurrence of three earthquakes with moment magnitude (Mw) greater than 8.8 and six earthquakes larger than Mw 8.5, since 2004, has raised interest in the long-term global rate of great earthquakes. Past studies have focused on the analysis of earthquakes since 1900, which roughly marks the start of the instrumental era in seismology. Before this time, the catalog is less complete...
Authors
Susan E. Hough
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
Science and Products
Filter Total Items: 131
Ground motions from the 2015Mw 7.8 Gorkha, Nepal, earthquake constrained by a detailed assessment of macroseismic data Ground motions from the 2015Mw 7.8 Gorkha, Nepal, earthquake constrained by a detailed assessment of macroseismic data
To augment limited instrumental recordings of the Mw 7.8 Gorkha, Nepal, earthquake on 25 April 2015 (Nepali calendar: 12 Baisakh 2072, Bikram Samvat), we collected 3831 detailed media and first-person accounts of macroseismic effects that include sufficiently detailed information to assign intensities. The resulting intensity map reveals the distribution of shaking within and outside of...
Authors
Stacey Martin, Susan E. Hough, Charleen Hung
Introduction to the focus section on the 2015 Gorkha, Nepal, earthquake Introduction to the focus section on the 2015 Gorkha, Nepal, earthquake
It has long been recognized that Nepal faces high earthquake hazard, with the most recent large (Mw>7.5) events in 1833 and 1934. When the 25 April 2015Mw 7.8 Gorkha earthquake struck, it appeared initially to be a realization of worst fears. In spite of its large magnitude and proximity to the densely populated Kathmandu valley, however, the level of damage was lower than anticipated...
Authors
Susan E. Hough
The 21 May 2014 Mw 5.9 Bay of Bengal earthquake: macroseismic data suggest a high‐stress‐drop event The 21 May 2014 Mw 5.9 Bay of Bengal earthquake: macroseismic data suggest a high‐stress‐drop event
A modest but noteworthy Mw 5.9 earthquake occurred in the Bay of Bengal beneath the central Bengal fan at 21:51 Indian Standard Time (16:21 UTC) on 21 May 2014. Centered over 300 km from the eastern coastline of India (Fig. 1), it caused modest damage by virtue of its location and magnitude. However, shaking was very widely felt in parts of eastern India where earthquakes are uncommon...
Authors
Stacey Martin, Susan E. Hough
Shaking from injection-induced earthquakes in the central and eastern United States Shaking from injection-induced earthquakes in the central and eastern United States
In this study I consider the ground motions generated by 11 moderate (Mw4.0-5.6) earthquakes in the central and eastern United States that are thought or suspected to be induced by fluid injection. Using spatially rich intensity data from the USGS “Did You Feel It?” system, I show that the distance decay of intensities for all events is consistent with that observed for tectonic...
Authors
Susan E. Hough
Earthquake intensity distributions: a new view Earthquake intensity distributions: a new view
Pioneering work by Nicolas Ambraseys and many collaborators demonstrates both the tremendous value of macroseismic data and the perils of its uncritical assessment. In numerous publications he shows that neglect of original sources and/or failure to appreciate the context of historical accounts, as well as use of unreliable indicators such as landslid- ing to determine intensities...
Authors
Susan E. Hough
Crustal structure and fault geometry of the 2010 Haiti earthquake from temporary seismometer deployments Crustal structure and fault geometry of the 2010 Haiti earthquake from temporary seismometer deployments
Haiti has been the locus of a number of large and damaging historical earthquakes. The recent 12 January 2010 Mw 7.0 earthquake affected cities that were largely unprepared, which resulted in tremendous losses. It was initially assumed that the earthquake ruptured the Enriquillo Plantain Garden fault (EPGF), a major active structure in southern Haiti, known from geodetic measurements and...
Authors
Roby Douilly, Jennifer S. Haase, William L. Ellsworth, Marie-Paule Bouin, Eric Calais, Steeve J. Symithe, John G. Armbruster, Bernard Mercier de Lepinay, Anne Deschamps, Saint‐Louis Mildor, Mark E. Meremonte, Susan E. Hough
Spatial variability of "Did You Feel It?" intensity data: insights into sampling biases in historical earthquake intensity distributions Spatial variability of "Did You Feel It?" intensity data: insights into sampling biases in historical earthquake intensity distributions
Recent parallel development of improved quantitative methods to analyze intensity distributions for historical earthquakes and of web‐based systems for collecting intensity data for modern earthquakes provides an opportunity to reconsider not only important individual historical earthquakes but also the overall characterization of intensity distributions for historical events. The focus...
Authors
Susan E. Hough
Reverberations on the watery element: A significant tsunamigenic historical earthquake offshore the Carolina coast Reverberations on the watery element: A significant tsunamigenic historical earthquake offshore the Carolina coast
We investigate an early nineteenth-century earthquake that has been previously cataloged but not previously investigated in detail or recognized as a significant event. The earthquake struck at approximately 4:30 a.m. LT on 8 January 1817 and was widely felt throughout the southeastern and mid-Atlantic United States. Around 11:00 a.m. the same day, an eyewitness described a 12-inch tide...
Authors
Susan E. Hough, Jeffrey Munsey, Steven N. Ward
Missing great earthquakes Missing great earthquakes
The occurrence of three earthquakes with moment magnitude (Mw) greater than 8.8 and six earthquakes larger than Mw 8.5, since 2004, has raised interest in the long-term global rate of great earthquakes. Past studies have focused on the analysis of earthquakes since 1900, which roughly marks the start of the instrumental era in seismology. Before this time, the catalog is less complete...
Authors
Susan E. Hough
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