Jeffrey Joseph McGuire
Jeff McGuire is a research geophysicist in the Earthquake Science Center.
Science and Products
Filter Total Items: 32
Commentary: The role of geodetic algorithms for earthquake early warning in Cascadia Commentary: The role of geodetic algorithms for earthquake early warning in Cascadia
The ShakeAlert earthquake early warning (EEW) system issues public alerts in California and will soon extend to Oregon and Washington. The Cascadia subduction zone presents significant new challenges and opportunities for EEW. Initial publications suggested that EEW algorithms based on Global Navigation Satellite System (GNSS) data could provide improved warning for intraslab events and
Authors
Jeffrey J. McGuire, Sarah E. Minson, Jessica R. Murray, Benjamin A. Brooks
Constraints on the geometry of the subducted Gorda Plate with converted phases generated by local earthquakes Constraints on the geometry of the subducted Gorda Plate with converted phases generated by local earthquakes
The largest slip in great megathrust earthquakes often occurs in the 10–30 km depth range, yet seismic imaging of the material properties in this region has proven difficult. We utilize a dense onshore-offshore passive seismic dataset from the southernmost Cascadia subduction zone where seismicity in the mantle of the subducted Gorda Plate produces S-to-P and P-to-S conversions generated...
Authors
Jianhua Gong, Jeffrey J. McGuire
A long-term geothermal observatory across subseafloor gas hydrates, IODP Hole U1364A, Cascadia accretionary prism A long-term geothermal observatory across subseafloor gas hydrates, IODP Hole U1364A, Cascadia accretionary prism
We report 4 years of temperature profiles collected from May 2014 to May 2018 in Integrated Ocean Drilling Program Hole U1364A in the frontal accretionary prism of the Cascadia subduction zone. The temperature data extend to depths of nearly 300 m below seafloor (mbsf), spanning the gas hydrate stability zone at the location and a clear bottom-simulating reflector (BSR) at ∼230 mbsf...
Authors
K. Elizabeth Becker, E. E. Davis, M. Hessemann, J. A. Collins, Jeffrey J. McGuire
ShakeAlert Earthquake Early Warning System Performance During the 2019 Ridgecrest Earthquake Sequence ShakeAlert Earthquake Early Warning System Performance During the 2019 Ridgecrest Earthquake Sequence
During July 2019, a sequence of earthquakes including a Mw6.4 foreshock and a Mw7.1 mainshock occurred near Ridgecrest, California. ShakeAlert, the U.S. Geological Survey (USGS) ShakeAlert public Earthquake Early Warning (EEW) system being developed for the U.S. West Coast, was operational during this time, though public alerting was only available within LA County. ShakeAlert created...
Authors
Angela Chung, Men-Andrin Meier, Jennifer Andrews, Maren Bose, Brendan Crowell, Jeffrey J. McGuire, Deborah Smith
New opportunities to study earthquake precursors New opportunities to study earthquake precursors
No abstract available.
Authors
M. E. Pritchard, R. M. Allen, T. W. Becker, M. D. Behn, E. E. Brodsky, R. Burgmann, C. Ebinger, J. T. Freymueller, M. C. Gerstenberger, B. Haines, Y. Kaneko, S. D. Jacobsen, N. Lindsey, Jeffrey J. McGuire, Morgan T. Page, S. Ruiz, M. Tolstoy, L. Wallace, W. R. Walter, W. Wilcock, H. Vincent
Abundant spontaneous and dynamically triggered submarine landslides in the Gulf of Mexico Abundant spontaneous and dynamically triggered submarine landslides in the Gulf of Mexico
Submarine landslides that occur offshore are common along the U.S. continental margins. These mass wasting events can trigger tsunamis and hence potentially devastate coastal communities and damage offshore infrastructure. However, the initiation and failure processes of submarine landslides are poorly understood. Here, we identify and locate 85 previously unknown submarine landslides in...
Authors
Wenyuan Fan, Jeffrey J. McGuire, Peter M. Shearer
Science and Products
Filter Total Items: 32
Commentary: The role of geodetic algorithms for earthquake early warning in Cascadia Commentary: The role of geodetic algorithms for earthquake early warning in Cascadia
The ShakeAlert earthquake early warning (EEW) system issues public alerts in California and will soon extend to Oregon and Washington. The Cascadia subduction zone presents significant new challenges and opportunities for EEW. Initial publications suggested that EEW algorithms based on Global Navigation Satellite System (GNSS) data could provide improved warning for intraslab events and
Authors
Jeffrey J. McGuire, Sarah E. Minson, Jessica R. Murray, Benjamin A. Brooks
Constraints on the geometry of the subducted Gorda Plate with converted phases generated by local earthquakes Constraints on the geometry of the subducted Gorda Plate with converted phases generated by local earthquakes
The largest slip in great megathrust earthquakes often occurs in the 10–30 km depth range, yet seismic imaging of the material properties in this region has proven difficult. We utilize a dense onshore-offshore passive seismic dataset from the southernmost Cascadia subduction zone where seismicity in the mantle of the subducted Gorda Plate produces S-to-P and P-to-S conversions generated...
Authors
Jianhua Gong, Jeffrey J. McGuire
A long-term geothermal observatory across subseafloor gas hydrates, IODP Hole U1364A, Cascadia accretionary prism A long-term geothermal observatory across subseafloor gas hydrates, IODP Hole U1364A, Cascadia accretionary prism
We report 4 years of temperature profiles collected from May 2014 to May 2018 in Integrated Ocean Drilling Program Hole U1364A in the frontal accretionary prism of the Cascadia subduction zone. The temperature data extend to depths of nearly 300 m below seafloor (mbsf), spanning the gas hydrate stability zone at the location and a clear bottom-simulating reflector (BSR) at ∼230 mbsf...
Authors
K. Elizabeth Becker, E. E. Davis, M. Hessemann, J. A. Collins, Jeffrey J. McGuire
ShakeAlert Earthquake Early Warning System Performance During the 2019 Ridgecrest Earthquake Sequence ShakeAlert Earthquake Early Warning System Performance During the 2019 Ridgecrest Earthquake Sequence
During July 2019, a sequence of earthquakes including a Mw6.4 foreshock and a Mw7.1 mainshock occurred near Ridgecrest, California. ShakeAlert, the U.S. Geological Survey (USGS) ShakeAlert public Earthquake Early Warning (EEW) system being developed for the U.S. West Coast, was operational during this time, though public alerting was only available within LA County. ShakeAlert created...
Authors
Angela Chung, Men-Andrin Meier, Jennifer Andrews, Maren Bose, Brendan Crowell, Jeffrey J. McGuire, Deborah Smith
New opportunities to study earthquake precursors New opportunities to study earthquake precursors
No abstract available.
Authors
M. E. Pritchard, R. M. Allen, T. W. Becker, M. D. Behn, E. E. Brodsky, R. Burgmann, C. Ebinger, J. T. Freymueller, M. C. Gerstenberger, B. Haines, Y. Kaneko, S. D. Jacobsen, N. Lindsey, Jeffrey J. McGuire, Morgan T. Page, S. Ruiz, M. Tolstoy, L. Wallace, W. R. Walter, W. Wilcock, H. Vincent
Abundant spontaneous and dynamically triggered submarine landslides in the Gulf of Mexico Abundant spontaneous and dynamically triggered submarine landslides in the Gulf of Mexico
Submarine landslides that occur offshore are common along the U.S. continental margins. These mass wasting events can trigger tsunamis and hence potentially devastate coastal communities and damage offshore infrastructure. However, the initiation and failure processes of submarine landslides are poorly understood. Here, we identify and locate 85 previously unknown submarine landslides in...
Authors
Wenyuan Fan, Jeffrey J. McGuire, Peter M. Shearer