Mark Reid
Mark Reid is a research hydrologist for California Volcano Observatory.
Science and Products
Landslide monitoring data for the Cleveland Corral landslide near U.S. Highway 50, El Dorado County, California Landslide monitoring data for the Cleveland Corral landslide near U.S. Highway 50, El Dorado County, California
The Cleveland Corral landslide complex located near U.S. Highway 50 in El Dorado County, California is episodically active. This USGS data release presents graphical and tabular data from near real-time monitoring of the Cleveland Corral landslide conducted between 1997 and 2018. The monitoring data include 15-minute and daily measurements (in separate files) for four types of sensors on...
Model input and output data covering Lares Municipio, Utuado Municipio, and Naranjito Municipio, Puerto Rico, for landslide initiation susceptibility assessment after Hurricane Maria Model input and output data covering Lares Municipio, Utuado Municipio, and Naranjito Municipio, Puerto Rico, for landslide initiation susceptibility assessment after Hurricane Maria
Hurricane Maria induced about 70,000 landslides throughout Puerto Rico, USA (Hughes and others, 2019). Data in this project pertain to two areas situated in Puerto Rico’s rugged Cordillera Central range. Combined, these areas account for more than half of the hurricane-induced landslides. One of these areas encloses two neighboring municipalities, Lares Municipio, and Utuado Municipio...
GPS monitoring data from spider units on the post-disaster 2014 Oso landslide, Snohomish County, Washington GPS monitoring data from spider units on the post-disaster 2014 Oso landslide, Snohomish County, Washington
Data in this release record ground-surface positions obtained during post-disaster emergency response following the 2014 catastrophic Oso (SR 530) landslide, Snohomish County, Washington. Global Positioning System (GPS) data were collected using three USGS GPS-seismometer spider units deployed adjacent to (OSO1), upslope of (OSO2), and on (OSO3) the landslide (see image for locations)...
Survey monument positions for the Cleveland Corral landslide near U.S. Highway 50, El Dorado County, California (ver. 2.0, December 2024) Survey monument positions for the Cleveland Corral landslide near U.S. Highway 50, El Dorado County, California (ver. 2.0, December 2024)
Data in this document record the ground-surface positions from 1996 to 2018 of monuments located on different kinematic elements of the Cleveland Corral landslide, or on nearby more stable ground. Data were collected about once a year in campaign mode, at times when the landslide was dormant and not moving (typically late spring or fall). Survey timing was selected to identify wet-season...
Data from ring shear strength testing of glaciolacustrine silty clay from the 2014, Oso, Washington landslide Data from ring shear strength testing of glaciolacustrine silty clay from the 2014, Oso, Washington landslide
We performed ring shear strength testing of three specimens from a glaciolacustrine silty clay unit involved in a large landslide that occurred March 22, 2014 near the town of Oso, Washington. Ring shear tests utilized apparatus DPRI-5 at Kyoto University, Japan and test results are presented herein. We refer to the specimens as the clay, clayey silt, and silt. Some tests were performed...
Filter Total Items: 41
Hazard analysis of landslides triggered by Typhoon Chata’an on July 2, 2002, in Chuuk State, Federated States of Micronesia Hazard analysis of landslides triggered by Typhoon Chata’an on July 2, 2002, in Chuuk State, Federated States of Micronesia
More than 250 landslides were triggered across the eastern volcanic islands of Chuuk State in the Federated States of Micronesia by torrential rainfall from tropical storm Chata’an on July 2, 2002. Landslides triggered during nearly 20 inches of rainfall in less than 24 hours caused 43 fatalities and the destruction or damage of 231 structures, including homes, schools, community centers...
Authors
Edwin L. Harp, Mark E. Reid, John A. Michael
When hazard avoidance is not an option: Lessons learned from monitoring the postdisaster Oso landslide, USA When hazard avoidance is not an option: Lessons learned from monitoring the postdisaster Oso landslide, USA
On 22 March 2014, a massive, catastrophic landslide occurred near Oso, Washington, USA, sweeping more than 1 km across the adjacent valley flats and killing 43 people. For the following 5 weeks, hundreds of workers engaged in an exhaustive search, rescue, and recovery effort directly in the landslide runout path. These workers could not avoid the risks posed by additional large-scale...
Authors
Mark E. Reid, Jonathan W. Godt, Richard G LaHusen, Stephen L Slaughter, Thomas C. Badger, Brian D. Collins, William H. Schulz, Rex L. Baum, Jeffrey A. Coe, Edwin L Harp, Kevin M. Schmidt, Richard M. Iverson, Joel B. Smith, Ralph A. Haugerud, David L. George
Progress and lessons learned from responses to landslide disasters Progress and lessons learned from responses to landslide disasters
Landslides have the incredible power to transform landscapes and also, tragically, to cause disastrous societal impacts. Whereas the mechanics and effects of many landslide disasters have been analyzed in detail, the means by which landslide experts respond to these events has garnered much less attention. Herein, we evaluate nine landslide response case histories conducted by the U.S...
Authors
Brian D. Collins, Mark E. Reid, Jeffrey A. Coe, Jason W. Kean, Rex L. Baum, Randall W. Jibson, Jonathan W. Godt, Stephen Slaughter, Greg M. Stock
Debris-flow growth in Puerto Rico during Hurricane Maria: Preliminary results from analyses of pre- and post-event lidar data Debris-flow growth in Puerto Rico during Hurricane Maria: Preliminary results from analyses of pre- and post-event lidar data
On September 20, 2017, Hurricane Maria triggered widespread debris flows in Puerto Rico. We used field observations and pre- and post-Maria lidar to study the volumetric growth of long-travelled (>400 m) debris flows in four basins. We found overall growth rates that ranged from 0.7 to 30.4 m3 per meter of channel length. We partitioned the rates into two growth mechanisms, aggregation...
Authors
Jeffrey A. Coe, Erin K. Bessette-Kirton, Dianne L. Brien, Mark E. Reid
Debris-flow initiation promoted by extension within a slow-moving landslide Debris-flow initiation promoted by extension within a slow-moving landslide
The dynamics of slow landslide motion can predispose oversteepened and extended slide regions to debris-flow initiation. For more than 20 years, our real-time monitoring, combined with repeat high-precision GPS surveys, of the Cleveland Corral landslide complex, California, USA, reveals that debris flows initiate from slow-moving kinematic elements of this complex. Different slide...
Authors
Mark E. Reid, Dianne L. Brien
Enhanced landslide mobility by basal liquefaction: the 2014 SR530 (Oso), Washington landslide Enhanced landslide mobility by basal liquefaction: the 2014 SR530 (Oso), Washington landslide
Landslide mobility can vastly amplify the consequences of slope failure. As a compelling example, the March 22, 2014 landslide near Oso, Washington (USA) was particularly devastating, traveling across a 1-km+ wide river valley, killing 43 people, destroying dozens of homes, and temporarily closing a well-traveled highway. To resolve causes for the landslide’s behavior and mobility, we...
Authors
Brian D. Collins, Mark E. Reid
Science and Products
Landslide monitoring data for the Cleveland Corral landslide near U.S. Highway 50, El Dorado County, California Landslide monitoring data for the Cleveland Corral landslide near U.S. Highway 50, El Dorado County, California
The Cleveland Corral landslide complex located near U.S. Highway 50 in El Dorado County, California is episodically active. This USGS data release presents graphical and tabular data from near real-time monitoring of the Cleveland Corral landslide conducted between 1997 and 2018. The monitoring data include 15-minute and daily measurements (in separate files) for four types of sensors on...
Model input and output data covering Lares Municipio, Utuado Municipio, and Naranjito Municipio, Puerto Rico, for landslide initiation susceptibility assessment after Hurricane Maria Model input and output data covering Lares Municipio, Utuado Municipio, and Naranjito Municipio, Puerto Rico, for landslide initiation susceptibility assessment after Hurricane Maria
Hurricane Maria induced about 70,000 landslides throughout Puerto Rico, USA (Hughes and others, 2019). Data in this project pertain to two areas situated in Puerto Rico’s rugged Cordillera Central range. Combined, these areas account for more than half of the hurricane-induced landslides. One of these areas encloses two neighboring municipalities, Lares Municipio, and Utuado Municipio...
GPS monitoring data from spider units on the post-disaster 2014 Oso landslide, Snohomish County, Washington GPS monitoring data from spider units on the post-disaster 2014 Oso landslide, Snohomish County, Washington
Data in this release record ground-surface positions obtained during post-disaster emergency response following the 2014 catastrophic Oso (SR 530) landslide, Snohomish County, Washington. Global Positioning System (GPS) data were collected using three USGS GPS-seismometer spider units deployed adjacent to (OSO1), upslope of (OSO2), and on (OSO3) the landslide (see image for locations)...
Survey monument positions for the Cleveland Corral landslide near U.S. Highway 50, El Dorado County, California (ver. 2.0, December 2024) Survey monument positions for the Cleveland Corral landslide near U.S. Highway 50, El Dorado County, California (ver. 2.0, December 2024)
Data in this document record the ground-surface positions from 1996 to 2018 of monuments located on different kinematic elements of the Cleveland Corral landslide, or on nearby more stable ground. Data were collected about once a year in campaign mode, at times when the landslide was dormant and not moving (typically late spring or fall). Survey timing was selected to identify wet-season...
Data from ring shear strength testing of glaciolacustrine silty clay from the 2014, Oso, Washington landslide Data from ring shear strength testing of glaciolacustrine silty clay from the 2014, Oso, Washington landslide
We performed ring shear strength testing of three specimens from a glaciolacustrine silty clay unit involved in a large landslide that occurred March 22, 2014 near the town of Oso, Washington. Ring shear tests utilized apparatus DPRI-5 at Kyoto University, Japan and test results are presented herein. We refer to the specimens as the clay, clayey silt, and silt. Some tests were performed...
Filter Total Items: 41
Hazard analysis of landslides triggered by Typhoon Chata’an on July 2, 2002, in Chuuk State, Federated States of Micronesia Hazard analysis of landslides triggered by Typhoon Chata’an on July 2, 2002, in Chuuk State, Federated States of Micronesia
More than 250 landslides were triggered across the eastern volcanic islands of Chuuk State in the Federated States of Micronesia by torrential rainfall from tropical storm Chata’an on July 2, 2002. Landslides triggered during nearly 20 inches of rainfall in less than 24 hours caused 43 fatalities and the destruction or damage of 231 structures, including homes, schools, community centers...
Authors
Edwin L. Harp, Mark E. Reid, John A. Michael
When hazard avoidance is not an option: Lessons learned from monitoring the postdisaster Oso landslide, USA When hazard avoidance is not an option: Lessons learned from monitoring the postdisaster Oso landslide, USA
On 22 March 2014, a massive, catastrophic landslide occurred near Oso, Washington, USA, sweeping more than 1 km across the adjacent valley flats and killing 43 people. For the following 5 weeks, hundreds of workers engaged in an exhaustive search, rescue, and recovery effort directly in the landslide runout path. These workers could not avoid the risks posed by additional large-scale...
Authors
Mark E. Reid, Jonathan W. Godt, Richard G LaHusen, Stephen L Slaughter, Thomas C. Badger, Brian D. Collins, William H. Schulz, Rex L. Baum, Jeffrey A. Coe, Edwin L Harp, Kevin M. Schmidt, Richard M. Iverson, Joel B. Smith, Ralph A. Haugerud, David L. George
Progress and lessons learned from responses to landslide disasters Progress and lessons learned from responses to landslide disasters
Landslides have the incredible power to transform landscapes and also, tragically, to cause disastrous societal impacts. Whereas the mechanics and effects of many landslide disasters have been analyzed in detail, the means by which landslide experts respond to these events has garnered much less attention. Herein, we evaluate nine landslide response case histories conducted by the U.S...
Authors
Brian D. Collins, Mark E. Reid, Jeffrey A. Coe, Jason W. Kean, Rex L. Baum, Randall W. Jibson, Jonathan W. Godt, Stephen Slaughter, Greg M. Stock
Debris-flow growth in Puerto Rico during Hurricane Maria: Preliminary results from analyses of pre- and post-event lidar data Debris-flow growth in Puerto Rico during Hurricane Maria: Preliminary results from analyses of pre- and post-event lidar data
On September 20, 2017, Hurricane Maria triggered widespread debris flows in Puerto Rico. We used field observations and pre- and post-Maria lidar to study the volumetric growth of long-travelled (>400 m) debris flows in four basins. We found overall growth rates that ranged from 0.7 to 30.4 m3 per meter of channel length. We partitioned the rates into two growth mechanisms, aggregation...
Authors
Jeffrey A. Coe, Erin K. Bessette-Kirton, Dianne L. Brien, Mark E. Reid
Debris-flow initiation promoted by extension within a slow-moving landslide Debris-flow initiation promoted by extension within a slow-moving landslide
The dynamics of slow landslide motion can predispose oversteepened and extended slide regions to debris-flow initiation. For more than 20 years, our real-time monitoring, combined with repeat high-precision GPS surveys, of the Cleveland Corral landslide complex, California, USA, reveals that debris flows initiate from slow-moving kinematic elements of this complex. Different slide...
Authors
Mark E. Reid, Dianne L. Brien
Enhanced landslide mobility by basal liquefaction: the 2014 SR530 (Oso), Washington landslide Enhanced landslide mobility by basal liquefaction: the 2014 SR530 (Oso), Washington landslide
Landslide mobility can vastly amplify the consequences of slope failure. As a compelling example, the March 22, 2014 landslide near Oso, Washington (USA) was particularly devastating, traveling across a 1-km+ wide river valley, killing 43 people, destroying dozens of homes, and temporarily closing a well-traveled highway. To resolve causes for the landslide’s behavior and mobility, we...
Authors
Brian D. Collins, Mark E. Reid