Earthquake Hazards Program

Publications

Educational Publications

Educational Publications

Selected publications about earthquakes In plain language.

Browse Publications

USGS Publications Warehouse

USGS Publications Warehouse

Search for any and all USGS publications.

Search Publications
Filter Total Items: 2,123
Publication Thumbnail
Year Published: 2021

Electrical properties of carbon dioxide hydrate: Implications for monitoring CO2 in the gas hydrate stability zone

CO2 and CH4 clathrate hydrates are of keen interest for energy and carbon cycle considerations. While both typically form on Earth as cubic structure I (sI), we find that pure CO2 hydrate exhibits over an order of magnitude higher electrical conductivity (σ) than pure CH4 hydrate at geologically relevant temperatures. The...

Stern, Laura A.; Constable, S.; Lu, Ryan; Du Frane, Wyatt L.; Roberts, J. Murray

Publication Thumbnail
Year Published: 2021

NGA-East Ground-Motion Characterization model part I: Summary of products and model development

In this article, we present an overview of the research project NGA-East, Next Generation Attenuation for Central and Eastern North America (CENA), and summarize the key methodology and products. The project was tasked with developing a new ground motion characterization (GMC) model for CENA. The final NGA-East GMC model includes a set of 17...

Goulet, Christine A.; Bozorgnia, Yousef; Kuehn, Nicolas; Al Atik, Linda; Youngs, Robert; Graves, Robert; Atkinson, Gail M.

Publication Thumbnail
Year Published: 2021

Coastal Tree-Ring Records for Paleoclimate and Paleoenvironmental Applications in North America

For more than a century, tree-ring research has identified relationships between climatic and ecological conditions and tree growth to describe past environments and constrain future ecosystem vulnerabilities. Tree-ring records are frequently used as environmental proxies that extend knowledge of past climate and ecology on millennial scales. Many...

Tucker, Clay; Pearl, Jessie Kathleen

Publication Thumbnail
Year Published: 2021

Evaluating spectral ratio methods for characterizing fundamental resonance peaks on flat sediments: An example from the Atlantic Coastal Plain, Eastern United States

Damaging ground motions from the 2011 Mw">Mw 5.8 Virginia earthquake were likely increased due to site amplification from the unconsolidated sediments of the Atlantic Coastal Plain (ACP), highlighting the need to understand site response on these widespread strata along the coastal regions of the eastern United States. The horizontal‐...

Schleicher, Lisa Sue; Pratt, Thomas L.

Publication Thumbnail
Year Published: 2021

Earthquake source mechanisms and stress field variations associated with wastewater-induced seismicity in southern Kansas, USA

The strong increase of seismicity rates in the contiguous USA over the last 10 years is linked to the injection of huge amounts of wastewater from oil and gas production in unconventional hydrocarbon reservoirs. We calculated 549 moment tensors of induced earthquakes (MW ≤ 4.9) in southern Kansas to study their source mechanisms and...

Amemotou, Amandine; Martinez-Garzon, Patricia; Kwiatek, Grzegorz; Rubinstein, Justin; Bohnhoff, Marco

Publication Thumbnail
Year Published: 2021

Strength recovery and sealing under hydrothermal conditions

While there is significant evidence for healing in natural faults, geothermal reservoirs, and lab experiments, the thermal, hydraulic, mechanical, and chemical interactions that influence healing are poorly understood. We present preliminary results of triaxial slide-hold-slide experiments to constrain rates and mechanisms of healing. Experiments...

Jeppson, Tamara Nicole; Lockner, David A.; Kilgore, Brian D.; Beeler, Nicholas M.; Taron, Joshua M.

Publication Thumbnail
Year Published: 2021

Creep on the Sargent Fault over the past 50 yr from alignment arrays with implications for slip transfer between the Calaveras and San Andreas Faults, California

The 55‐km‐long Sargent fault connects the creeping Calaveras fault with the locked San Andreas fault through the Santa Cruz Mountains west of Gilroy, California. The position of the Sargent fault between these two faults may have implications for slip transfer and strain accumulation between a creeping and locked fault. The detection and...

Mongovin, Daniel; Philibosian, Belle

Publication Thumbnail
Year Published: 2021

ShakeMap operations, policies, and procedures

The US Geological Survey’s ShakeMap is used domestically and globally for post-earthquake emergency management and response, engineering analyses, financial instruments, and other decision-making activities. Recent developments in the insurance, reinsurance, and catastrophe bond sectors link payouts of potentially hundreds of millions of dollars...

Wald, David J.; Worden, Charles; Thompson, Eric M.; Hearne, Mike

Publication Thumbnail
Year Published: 2021

Holocene depositional history inferred from single-grain luminescence ages in southern California, North America

Significant sediment flux and deposition in a sedimentary system are influenced by climate changes, tectonics, lithology, and the sedimentary system's internal dynamics. Identifying the timing of depositional periods from stratigraphic records is a first step to critically evaluate the controls of sediment flux and deposition. Here, we show that...

Saha, Sourav; Moon, Seulgi; Brown, Nathan D.; Rhodes, Edward J.; Scharer, Katherine; McPhillips, Devin; McGill, Sally F.; Castillo, Bryan A.

Publication Thumbnail
Year Published: 2021

Streambank erosion and related geomorphic change in Tuolumne Meadows, Yosemite National Park, California

Landscape change in Tuolumne Meadows, Yosemite National Park, California, was characterized using data derived from four lidar surveys: one airborne survey in 2006 and three terrestrial surveys in 2016, 2017, and 2018. These surveys were used to generate a better quantitative understanding of changes associated with fluvial processes along the...

DeLong, Stephen B.; Pickering, Alexandra J.; Kuhn, Timothy
DeLong, S.B., Pickering, A.J., and Kuhn, T., 2021, Streambank erosion and related geomorphic change in Tuolumne Meadows, Yosemite National Park, California: U.S. Geological Survey Scientific Investigations Report 2021–5025, 87 p., https://doi.org/10.3133/sir20215025.

Publication Thumbnail
Year Published: 2021

Teleseismic waves reveal anisotropic poroelastic response of wastewater disposal reservoir

Connecting earthquake nucleation in basement rock to fluid injection in basal, sedimentary reservoirs, depends heavily on choices related to the poroelastic properties of the fluid-rock system, thermo-chemical effects notwithstanding. Direct constraints on these parameters outside of laboratory settings are rare, and it is commonly assumed that...

Barbour, Andrew; Beeler, Nicholas M.

Publication Thumbnail
Year Published: 2021

Evaluation of remote mapping techniques for earthquake-triggered landslide inventories in an urban subarctic environment: A case study of the 2018 Anchorage, Alaska Earthquake

Earthquake-induced landslide inventories can be generated using field observations but doing so can be challenging if the affected landscape is large or inaccessible after an earthquake. Remote sensing data can be used to help overcome these limitations. The effectiveness of remotely sensed data to produce landslide inventories, however, is...

Martinez, Sabrina Nicole; Schaefer, Lauren Nicole; Allstadt, Kate; Thompson, Eric M.