Alex Grant
Alex is a Research Engineer specializing in regional-scale landslide and liquefaction hazards and risk.
Alex got his Ph.D. in 2017 from the University of Washington where he studied coseismic landslide hazard and risk in Lebanon, New Zealand, Japan, and the Pacific Northwest of N. America. Alex received his BSCE from Tufts University in 2013 and a MSE in 2014 from the University of Washington in Geotechnical Engineering. Alex joined the USGS in 2018 to research earthquake-induced ground failures, and is actively working on projects in the Pacific Northwest and California.
Science and Products
Filter Total Items: 18
Probabilistic regional-scale liquefaction triggering modeling using 3D Gaussian processes
Liquefaction is a major cause of coseismic damages, occurring irregularly over hundreds or thousands of square kilometers in large earthquakes. Large variations in the extent and location of liquefaction have been observed in recent earthquakes, motivating the need for prediction methods that consider the spatial heterogeneity of geologic deposits at a regional scale. Contemporary regional-scale l
Authors
Michael Greenfield, Alex R. R. Grant
USGS near-real-time products-and their use-for the 2018 Anchorage earthquake
In the minutes to hours after a major earthquake, such as the recent 2018 Mw 7.1 Anchorage event, the U.S. Geological Survey (USGS) produces a suite of interconnected earthquake products that provides diverse information ranging from basic earthquake source parameters to loss estimates. The 2018 Anchorage earthquake is the first major domestic earthquake to occur since several new USGS products ha
Authors
Eric M. Thompson, Sara McBride, Gavin P. Hayes, Kate E. Allstadt, Lisa Wald, David J. Wald, Keith L. Knudsen, Charles Worden, Kristin Marano, Randall W. Jibson, Alex R. R. Grant
Ground failure from the Anchorage, Alaska, earthquake of 30 November 2018
Investigation of ground failure triggered by the 2018 MwMw 7.1 Anchorage earthquake showed that landslides, liquefaction, and ground cracking all occurred and caused significant damage. Shallow rock falls and rock slides were the most abundant types of landslides, but they occurred in smaller numbers than global models that are based on earthquake magnitude predict; this might result from the 2018
Authors
Randall W. Jibson, Alex R. R. Grant, Robert C. Witter, Kate E. Allstadt, Eric M. Thompson, Adrian Bender
Seismological, geological, and geotechnical engineering aspects of the 2018 MW 6.6 Hokkaido Eastern Iburi earthquake
The 2018 Hokkaido Eastern Iburi MW6.6 earthquake struck the southern coast of the north island of Japan in the early morning (3:08 AM JST) on September 6, 2018. The event had a hypocentral depth of 35 km, centered beneath the port city of Tomakomai. Extremely strong shaking with peak ground acceleration in excess of 0.5 g was felt in the communities directly north of Tomakomai, in the districts of
Authors
Robert Kayen, Brad Wham, Alex R. R. Grant, Mikami Atsushi, Donald Anderson, Paolo Zimmaro, Pengfei Wang, Yi Tyan Tsai, Jeff Bachhuber, Chris L M Madugo, Joseph Sun, Christopher S. Hitchcock, Matthew Motto
Risk at the margins: A natural hazards perspective on the Syrian refugee crisis in Lebanon
Quantitative landslide risk analysis is a key step in creating appropriate land use policies. The forced migration of those displaced by recent armed conflict in Syria has highlighted the need for studies to guide humanitarian aid and resettlement policies. Over 1.5 million displaced Syrians now reside in Lebanon, self-settling throughout the country through urban integration and informal encampme
Authors
William Pollock, Joseph Wartman, Grace Abou-Jaoude, Alex R. R. Grant
Quantitative coseismic and precipitation-induced landslide risk mapping for the country of Lebanon
Quantitative landslide risk assessment is a key step in creating appropriate land use policies. The forced migration of those displaced by recent events in Syria has highlighted the need for studies to guide humanitarian aid and resettlement policies. In 2011, armed conflict in the region precipitated the largest refugee crisis in a generation. Over 1.5 million displaced Syrians now reside in Leba
Authors
William Pollock, Joseph Wartman, Grace Abou-Jaoude, Alex R. R. Grant
Science and Products
Filter Total Items: 18
Probabilistic regional-scale liquefaction triggering modeling using 3D Gaussian processes
Liquefaction is a major cause of coseismic damages, occurring irregularly over hundreds or thousands of square kilometers in large earthquakes. Large variations in the extent and location of liquefaction have been observed in recent earthquakes, motivating the need for prediction methods that consider the spatial heterogeneity of geologic deposits at a regional scale. Contemporary regional-scale l
Authors
Michael Greenfield, Alex R. R. Grant
USGS near-real-time products-and their use-for the 2018 Anchorage earthquake
In the minutes to hours after a major earthquake, such as the recent 2018 Mw 7.1 Anchorage event, the U.S. Geological Survey (USGS) produces a suite of interconnected earthquake products that provides diverse information ranging from basic earthquake source parameters to loss estimates. The 2018 Anchorage earthquake is the first major domestic earthquake to occur since several new USGS products ha
Authors
Eric M. Thompson, Sara McBride, Gavin P. Hayes, Kate E. Allstadt, Lisa Wald, David J. Wald, Keith L. Knudsen, Charles Worden, Kristin Marano, Randall W. Jibson, Alex R. R. Grant
Ground failure from the Anchorage, Alaska, earthquake of 30 November 2018
Investigation of ground failure triggered by the 2018 MwMw 7.1 Anchorage earthquake showed that landslides, liquefaction, and ground cracking all occurred and caused significant damage. Shallow rock falls and rock slides were the most abundant types of landslides, but they occurred in smaller numbers than global models that are based on earthquake magnitude predict; this might result from the 2018
Authors
Randall W. Jibson, Alex R. R. Grant, Robert C. Witter, Kate E. Allstadt, Eric M. Thompson, Adrian Bender
Seismological, geological, and geotechnical engineering aspects of the 2018 MW 6.6 Hokkaido Eastern Iburi earthquake
The 2018 Hokkaido Eastern Iburi MW6.6 earthquake struck the southern coast of the north island of Japan in the early morning (3:08 AM JST) on September 6, 2018. The event had a hypocentral depth of 35 km, centered beneath the port city of Tomakomai. Extremely strong shaking with peak ground acceleration in excess of 0.5 g was felt in the communities directly north of Tomakomai, in the districts of
Authors
Robert Kayen, Brad Wham, Alex R. R. Grant, Mikami Atsushi, Donald Anderson, Paolo Zimmaro, Pengfei Wang, Yi Tyan Tsai, Jeff Bachhuber, Chris L M Madugo, Joseph Sun, Christopher S. Hitchcock, Matthew Motto
Risk at the margins: A natural hazards perspective on the Syrian refugee crisis in Lebanon
Quantitative landslide risk analysis is a key step in creating appropriate land use policies. The forced migration of those displaced by recent armed conflict in Syria has highlighted the need for studies to guide humanitarian aid and resettlement policies. Over 1.5 million displaced Syrians now reside in Lebanon, self-settling throughout the country through urban integration and informal encampme
Authors
William Pollock, Joseph Wartman, Grace Abou-Jaoude, Alex R. R. Grant
Quantitative coseismic and precipitation-induced landslide risk mapping for the country of Lebanon
Quantitative landslide risk assessment is a key step in creating appropriate land use policies. The forced migration of those displaced by recent events in Syria has highlighted the need for studies to guide humanitarian aid and resettlement policies. In 2011, armed conflict in the region precipitated the largest refugee crisis in a generation. Over 1.5 million displaced Syrians now reside in Leba
Authors
William Pollock, Joseph Wartman, Grace Abou-Jaoude, Alex R. R. Grant