View of Glacier Bay National Park from the air.
Katherine (Kate) Scharer
Dr. Scharer holds a Ph.D. from the University of Oregon and a B.S. in Geological Sciences from the University of Washington.
Prior to coming to the USGS, she was a professor at Appalachian State University in North Carolina. Dr. Scharer studies the timing and size of pre-historic earthquakes along the San Andreas Fault and other active faults in southern California, Alaska, and the Dominican Republic. She also investigates the deformation produced by tectonic motion through a combination of field mapping, lidar analysis, and Quaternary geochronologic methods.
Science and Products
External Grants - Overview
Back to the Future on the San Andreas Fault
Earthquake geology inputs for the National Seismic Hazard Model (NSHM) 2025 (Puerto Rico and U.S. Virgin Islands), version 1.0
Earthquake geology inputs for the U.S. National Seismic Hazard Model (NSHM) 2023 (western U.S.) (ver. 3.0, December 2023)
Radiocarbon dates from the 2020 Bobcat Fire and 2013 Grand Fire, Western Transverse Ranges, California
Sediment properties, charcoal counts, and radiocarbon dates from the Pallett Creek paleoseismic site, San Gabriel Mountains, California (ver. 2.0, February 2024)
Beryllium-10 concentrations in depth profiles and surface clasts from terrace surfaces near Littlerock Creek, California
Data release for spatial and temporal analysis of geologically derived fault slip rates, Cucamonga Fault, California, USA
Earthquake geology inputs for the U.S. National Seismic Hazard Model (NSHM) 2023 (western US) (ver. 2.0, February 2022)
Earthquake geology inputs for the U.S. National Seismic Hazard Model (NSHM) 2023, version 1.0
Surface Displacement Observations of the 2019 Ridgecrest, California Earthquake Sequence
View of Glacier Bay National Park from the air.
USGS research geologist Kate Scharer with her finger on the Fairweather Fault in southeast Alaska. The magnitude 7.8 Lituya Bay earthquake caused shaking that toppled trees along the fault, which left a break in the forest shown here.
USGS research geologist Kate Scharer with her finger on the Fairweather Fault in southeast Alaska. The magnitude 7.8 Lituya Bay earthquake caused shaking that toppled trees along the fault, which left a break in the forest shown here.
The field team revisited many of the same locations geologists Don Tocher and Don Miller studied in 1958.
The field team revisited many of the same locations geologists Don Tocher and Don Miller studied in 1958.
U.S. Geological Survey Earthquake Hazards Program decadal science strategy, 2024–33
Inbuilt age, residence time, and inherited age from radiocarbon dates of modern fires and late Holocene deposits, Western Transverse Ranges, California
The Mojave section of the San Andreas fault (California), 1: Shaping the terrace stratigraphy of Littlerock Creek through the competition between rapid strike-slip faulting and lateral stream erosion over the last 40ka.
Spatial and temporal analysis of geologic slip rates, Cucamonga Fault, California, USA: Implications for along-strike applications and multi-fault rupture
Survey of fragile geologic features and their quasi-static earthquake ground-motion constraints, southern Oregon
Observation-constrained multicycle dynamic models of the southern San Andreas and the northern San Jacinto Faults: Addressing complexity in paleoearthquake extent and recurrence with realistic 2D fault geometry
STEPS: Slip time earthquake path simulations applied to the San Andreas and Toe Jam Hill Faults to redefine geologic slip rate uncertainty
SSA task force on diversity, equity, and inclusion: Toward a changing, inclusive future in earthquake science
Late Holocene slip rate of the Mojave section of the San Andreas Fault near Palmdale, California
Holocene depositional history inferred from single-grain luminescence ages in southern California, North America
Prehistoric earthquakes on the Banning strand of the San Andreas fault, North Palm Springs, California
Geomorphic expression and slip rate of the Fairweather fault, southeast Alaska, and evidence for predecessors of the 1958 rupture
STEPS: Slip Time Earthquake Path Simulations applied to the San Andreas and Toe Jam Hill faults to redefine geologic slip rate uncertainty (Matlab code)
Science and Products
External Grants - Overview
Back to the Future on the San Andreas Fault
Earthquake geology inputs for the National Seismic Hazard Model (NSHM) 2025 (Puerto Rico and U.S. Virgin Islands), version 1.0
Earthquake geology inputs for the U.S. National Seismic Hazard Model (NSHM) 2023 (western U.S.) (ver. 3.0, December 2023)
Radiocarbon dates from the 2020 Bobcat Fire and 2013 Grand Fire, Western Transverse Ranges, California
Sediment properties, charcoal counts, and radiocarbon dates from the Pallett Creek paleoseismic site, San Gabriel Mountains, California (ver. 2.0, February 2024)
Beryllium-10 concentrations in depth profiles and surface clasts from terrace surfaces near Littlerock Creek, California
Data release for spatial and temporal analysis of geologically derived fault slip rates, Cucamonga Fault, California, USA
Earthquake geology inputs for the U.S. National Seismic Hazard Model (NSHM) 2023 (western US) (ver. 2.0, February 2022)
Earthquake geology inputs for the U.S. National Seismic Hazard Model (NSHM) 2023, version 1.0
Surface Displacement Observations of the 2019 Ridgecrest, California Earthquake Sequence
View of Glacier Bay National Park from the air.
View of Glacier Bay National Park from the air.
USGS research geologist Kate Scharer with her finger on the Fairweather Fault in southeast Alaska. The magnitude 7.8 Lituya Bay earthquake caused shaking that toppled trees along the fault, which left a break in the forest shown here.
USGS research geologist Kate Scharer with her finger on the Fairweather Fault in southeast Alaska. The magnitude 7.8 Lituya Bay earthquake caused shaking that toppled trees along the fault, which left a break in the forest shown here.
The field team revisited many of the same locations geologists Don Tocher and Don Miller studied in 1958.
The field team revisited many of the same locations geologists Don Tocher and Don Miller studied in 1958.