Natural Hazards

Publications

Filter Total Items: 6,321
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Year Published: 2021

Geomagnetic monitoring in the mid-Atlantic United States

Near historic battlegrounds of the American Civil War, southeast of Fredericksburg, Virginia, on a secluded grassy glade surrounded by forest, a specially designed observatory records the Earth’s changing magnetic field. This facility, the Fredericksburg Magnetic Observatory, is 1 of 14 observatories the U.S. Geological Survey Geomagnetism Program...

Love, Jeffrey J.; Lewis, Kristen A.
Love, J.J., and Lewis, K.A., 2021, Geomagnetic monitoring in the mid-Atlantic United States: U.S. Geological Survey Fact Sheet, 2 p., http://dx.doi.org/10.3133/fs3001.

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Year Published: 2021

Airborne dust plumes lofted by dislodged ice blocks at Russell crater, Mars

Linear dune gullies on poleward‐facing Martian slopes are enigmatic. Formation by CO2‐ice block or snow cornice falls has been proposed based on optical imagery of bright, high‐albedo features inside gully channels. Because these features often resemble patchy frost residue rather than three‐dimensional blocks, more evidence is needed to support...

Dinwiddie, Cynthia; Titus, Timothy N.

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Year Published: 2021

U.S. Geological Survey wildland fire science strategic plan, 2021–26

The U.S. Geological Survey (USGS) Wildland Fire Science Strategic Plan defines critical, core fire science capabilities for understanding fire-related and fire-responsive earth system processes and patterns, and informing management decision making. Developed by USGS fire scientists and executive leadership, and informed by conversations with...

Steblein, Paul F.; Loehman, Rachel A.; Miller, Mark P.; Holomuzki, Joseph R.; Soileau, Suzanna C.; Brooks, Matthew L.; Drane-Maury, Mia; Hamilton, Hannah M.; Kean, Jason W.; Keeley, Jon E.; Mason, Robert R.; McKerrow, Alexa J.; Meldrum, James R.; Molder, Edmund B.; Murphy, Sheila F.; Peterson, Birgit; Plumlee, Geoffrey S.; Shinneman, Douglas J.; van Mantgem, Phillip J.; York, Alison
Steblein, P.F., Loehman, R.A., Miller, M.P., Holomuzki, J.R., Soileau, S.C., Brooks, M.L., Drane-Maury, M., Hamilton, H.M., Kean, J.W., Keeley, J.E., Mason, R.R., Jr., McKerrow, A., Meldrum, J.R., Molder, E.B., Murphy, S.F., Peterson, B., Plumlee, G.S., Shinneman, D.J., van Mantgem, P.J., and York, A., 2021, U.S. Geological Survey wildland fire science strategic plan, 2021–26: U.S. Geological Survey Circular 1471, 30 p., https://doi.org/10.3133/cir1471.

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Year Published: 2021

Amateur radio operators help fill earthquake donut holes

If you’ve ever seen tall antennas rising from everyday residences in your community and wondered what they are for, it could be that those homes belong to ham radio enthusiasts who enjoy communicating with each other over the airwaves. In addition to having fun with their radios and finding camaraderie, many ham radio operators are also...

Wald, David J.; Quitoriano, Vince; Dully, Oliver

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Year Published: 2021

The Mars 2020 Perseverance rover mast camera zoom (Mastcam-Z) multispectral, stereoscopic imaging investigation

Mastcam-Z is a multispectral, stereoscopic imaging investigation on the Mars 2020 mission’s Perseverance rover. Mastcam-Z consists of a pair of focusable, 4:1 zoomable cameras that provide broadband red/green/blue and narrowband 400-1000 nm color imaging with fields of view from 25.6° × 19.2° (26 mm focal length at 283 ...

Bell, J. F.; Maki, J. N.; Mehall, G. L.; Ravine, M. A.; Caplinger, M. A.; Bailey, Z. J.; Brylow, S.; Schaffner, J. A.; Kinch, K. M.; Madsen, M. B.; Winhold, A.; Hayes, A. G.; Corlies, P.; Tate, C.; Barrington, M.; Cisneros, E.; Jensen, E.; Parise, Katy L.; Crawford, Kelon; Rojas, C.; Mehall, L.; Joseph, J.; Proton, J. B.; Cluff, N.; Deen, R. G.; Betts, B.; Cloutis, Edward A.; Coates, A. J.; Colaprete, Anthony; Edgett, K. S.; Ehlmann, B. L.; Fagents, Sarah A.; Grotzinger, J. P.; Hardgrove, C.; Herkenhoff, Kenneth E.; Horgan, Briony H. N.; Jaumann, R.; Johnson, J. R.; Lemmon, M. T.; Paar, G.; Caballo-Perucha, M; Gupta, S.; Traxler, C; Preusker, F.; Rice, M. S.; Robinson, M. S.; Schmitz, N.; Sullivan, R.; Wolff, M. J.

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Year Published: 2021

Electrical conductivity of the lithosphere-asthenosphere system

Electromagnetic geophysical methods image the electrical conductivity of the subsurface. Electrical conductivity is an intrinsic material property that is sensitive to temperature, composition, porosity, volatile and/or melt content, and other physical properties relevant to the solid Earth. Therefore, imaging the electrical structure of...

Naif, Samer; Selway, Kate; Murphy, Benjamin Scott; Egbert, Gary D.; Pommier, Anne

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Year Published: 2021

Characterizing fault roughness—Are faults rougher at long or short wavelengths?

Changes in fault roughness with scale, “scaling,” is the topic of this report; changes are considered using a general power law relation between some measure of surface height, H, and another of length, L, H=kLn, where k is a constant and n is an exponent that characterizes the scaling. Extensive profile measurements of natural fault surfaces show...

Beeler, Nicholas M.
Beeler, N.M., 2021, Characterizing fault roughness—Are faults rougher at long or short wavelengths?: U.S. Geological Survey Open-File Report 2020–1134, 15 p., https://doi.org/10.3133/ofr20201134.

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Year Published: 2021

Field response and surface rupture characteristics of the 2020 M6.5 Monte Cristo Range earthquake, central Walker Lane, Nevada

The M 6.5 Monte Cristo Range earthquake that occurred in the central Walker Lane on 15 May 2020 was the largest earthquake in Nevada in 66 yr and resulted in a multidisciplinary scientific field response. The earthquake was the result of left‐lateral slip along largely unmapped parts of the Candelaria fault, one of a series of east–...

Koehler, Richard D; Dee, Seth; Elliott, Austin John; Hatem, Alexandra Elise; Pickering, Alexandra; Pierce, Ian; Seitz, Gordon G.

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Year Published: 2021

Quantifying nuisance ground motion thresholds for induced earthquakes

Hazards from induced earthquakes are a growing concern with a need for effective management. One aspect of that concern is the “nuisance” from unexpected ground motions, which have the potential to cause public alarm and discontent. In this article, we borrow earthquake engineering concepts to quantify the chance of building damage states and...

Schultz, Ryan; Quitoriano, Vince; Wald, David J.; Beroza, Gregory C.

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Year Published: 2021

USGS permafrost research determines the risks of permafrost thaw to biologic and hydrologic resources

The U.S. Geological Survey (USGS), in collaboration with university, Federal, Tribal, and independent partners, conducts fundamental research on the distribution, vulnerability, and importance of permafrost in arctic and boreal ecosystems. Scientists, land managers, and policy makers use USGS data to help make decisions for development, wildlife...

Waldrop, Mark P.; Anderson, Lesleigh; Dornblaser, Mark; Erikson, Li H.; Gibbs, Ann E.; Herman-Mercer, Nicole M.; James, Stephanie R.; Jones, Miriam C.; Koch, Joshua C.; Leewis, Mary-Cathrine; Manies, Kristen L.; Minsley, Burke J.; Pastick, Neal J.; Patil, Vijay; Urban, Frank; Walvoord, Michelle A.; Wickland, Kimberly P.; Zimmerman, Christian
Waldrop, M.P., Anderson, L., Dornblaser, M., Erikson, L.H., Gibbs, A.E., Herman-Mercer, N.M., James, S.R., Jones, M.C., Koch, J.C., Leewis, M.-C., Manies, K.L., Minsley, B.J., Pastick, N.J., Patil, V., Urban, F., Walvoord, M.A., Wickland, K.P., and Zimmerman, C., 2021, USGS permafrost research determines the risks of permafrost thaw to biologic and hydrologic resources: U.S. Geological Survey Fact Sheet 2020-3058, 6 p., https://doi.org/10.3133/fs20203058.

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Year Published: 2021

Modeling hydrologic processes associated with soil saturation and debris flow initiation during the September 2013 storm, Colorado Front Range

Seven days of extreme rainfall during September 2013 produced more than 1100 debris flows in the Colorado Front Range, about 78% of which occurred on south-facing slopes (SFS). Previously published soil moisture (volumetric water content) observations suggest that SFS were wetter than north-facing slopes (NFS) during the event, which contrasts...

Timilsina, Sujana; Niemann, Jeffrey D.; Rathburn, Sara L.; Rengers, Francis K.; Nelson, Peter A.

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Year Published: 2021

Toward physics-based nonergodic PSHA: A prototype fully-deterministic seismic hazard model for southern California

We present a nonergodic framework for probabilistic seismic‐hazard analysis (PSHA) that is constructed entirely of deterministic, physical models. The use of deterministic ground‐motion simulations in PSHA calculations is not new (e.g., CyberShake), but prior studies relied on kinematic rupture generators to extend empirical earthquake rupture...

Milner, Kevin R.; Shaw, Bruce E.; Goulet, Christine A.; Richards-Dinger, Keith B.; Callaghan, Scott; Jordan, Thomas H.; Dieterich, James H.; Field, Edward H.