Mission Areas

Natural Hazards

Mission Areas L2 Landing Page Tabs

Filter Total Items: 4,168
Year Published: 2008

Structure of the San Bernardino Basin Along Two Seismic Transects: Rialto-Colton Fault to the San Andreas Fault and Along the I-215 Freeway (I-10 to SR30)

In this report, we present seismic data and acquisition parameters for two seismic profiles acquired in the San Bernardino, California area in May and October 2003. We refer to these seismic profiles as the San Bernardino Regional (SBR) and San Bernardino High-Resolution (SBHR) seismic profiles. We present both un-interpreted and interpreted...

Catchings, R.D.; Rymer, M.J.; Goldman, M.R.; Gandhok, G.; Steedman, C.E.
Structure of the San Bernardino Basin Along Two Seismic Transects: Rialto-Colton Fault to the San Andreas Fault and Along the I-215 Freeway (I-10 to SR30); 2008; OFR; 2008-1197; Catchings, R. D.; Rymer, M. J.; Goldman, M. R.; Gandhok, G.; Steedman, C. E.

Year Published: 2008

The ShakeOut Earthquake Scenario - A Story That Southern Californians Are Writing

The question is not if but when southern California will be hit by a major earthquake - one so damaging that it will permanently change lives and livelihoods in the region. How severe the changes will be depends on the actions that individuals, schools, businesses, organizations, communities, and governments take to get ready. To help prepare for...

Perry, Suzanne; Cox, Dale; Jones, Lucile; Bernknopf, Richard; Goltz, James; Hudnut, Kenneth; Mileti, Dennis; Ponti, Daniel; Porter, Keith; Reichle, Michael; Seligson, Hope; Shoaf, Kimberley; Treiman, Jerry; Wein, Anne
The ShakeOut Earthquake Scenario - A Story That Southern Californians Are Writing; 2008; CIR; 1324; Perry, Suzanne; Cox, Dale; Jones, Lucile; Bernknopf, Richard; Goltz, James; Hudnut, Kenneth; Mileti, Dennis; Ponti, Daniel; Porter, Keith; Reichle, Michael; Seligson, Hope; Shoaf, Kimberley; Treiman, Jerry; Wein, Anne

Year Published: 2008

The ShakeOut Scenario

This is the initial publication of the results of a cooperative project to examine the implications of a major earthquake in southern California. The study comprised eight counties: Imperial, Kern, Los Angeles, Orange, Riverside, San Bernardino, San Diego, and Ventura. Its results will be used as the basis of an emergency response and preparedness...

Jones, Lucile M.; Bernknopf, Richard; Cox, Dale; Goltz, James; Hudnut, Kenneth; Mileti, Dennis; Perry, Suzanne; Ponti, Daniel; Porter, Keith; Reichle, Michael; Seligson, Hope; Shoaf, Kimberley; Treiman, Jerry; Wein, Anne
The ShakeOut Scenario; 2008; OFR; 2008-1150; Jones, Lucile M.; Bernknopf, Richard; Cox, Dale; Goltz, James; Hudnut, Kenneth; Mileti, Dennis; Perry, Suzanne; Ponti, Daniel; Porter, Keith; Reichle, Michael; Seligson, Hope; Shoaf, Kimberley; Treiman, Jerry; Wein, Anne

Year Published: 2008

A New Perspective on Mount St. Helens - Dramatic Landform Change and Associated Hazards at the Most Active Volcano in the Cascade Range

Mount St. Helens has erupted more frequently than any other volcano in the Cascade Range during the past 4,000 years. The volcano has exhibited a variety of eruption styles?explosive eruptions of pumice and ash, slow but continuous extrusions of viscous lava, and eruptions of fluid lava. Evidence of the volcano?s older eruptions is recorded in the...

Ramsey, David W.; Driedger, Carolyn L.; Schilling, Steve P.
A New Perspective on Mount St. Helens - Dramatic Landform Change and Associated Hazards at the Most Active Volcano in the Cascade Range; 2008; SIM; 3008; Ramsey, David W.; Driedger, Carolyn L.; Schilling, Steve P.

Year Published: 2008

Eruptions in the Cascade Range During the Past 4,000 Years

Volcanoes have been erupting in the Cascade Range for over 500,000 years. During the past 4,000 years eruptions have occurred at an average rate of about 2 per century. This chart shows 13 volcanoes on a map of Washington, Oregon, and northern California and time lines for each showing the ages of their eruptions.

Myers, Bobbie; Driedger, Carolyn
Eruptions in the Cascade Range During the Past 4,000 Years; 2008; GIP; 63; Myers, Bobbie; Driedger, Carolyn

Year Published: 2008

Geologic Hazards at Volcanoes

Most volcano hazards are associated with eruptions. However, some hazards, such as lahars and debris avalanches, can occur even when a volcano is not erupting.

Myers, Bobbie; Driedger, Carolyn
Geologic Hazards at Volcanoes; 2008; GIP; 64; Myers, Bobbie; Driedger, Carolyn

Year Published: 2008

Probabilistic Methodology for Estimation of Number and Economic Loss (Cost) of Future Landslides in the San Francisco Bay Region, California

The Probabilistic Landslide Assessment Cost Estimation System (PLACES) presented in this report estimates the number and economic loss (cost) of landslides during a specified future time in individual areas, and then calculates the sum of those estimates. The analytic probabilistic methodology is based upon conditional probability theory and laws...

Crovelli, Robert A.; Coe, Jeffrey A.
Probabilistic Methodology for Estimation of Number and Economic Loss (Cost) of Future Landslides in the San Francisco Bay Region, California; 2008; OFR; 2008-1116; Crovelli, Robert A.; Coe, Jeffrey A.

Year Published: 2008

Catalog of Mount St. Helens 2004 - 2005 Tephra Samples with Major- and Trace-Element Geochemistry

This open-file report presents a catalog of information about 135 ash samples along with geochemical analyses of bulk ash, glass and individual mineral grains from tephra deposited as a result of volcanic activity at Mount St. Helens, Washington, from October 1, 2004 until August 15, 2005. This data, in conjunction with that in a companion report...

Rowe, Michael C.; Thornber, Carl R.; Gooding, Daniel J.; Pallister, John S.
Catalog of Mount St. Helens 2004 - 2005 Tephra Samples with Major- and Trace-Element Geochemistry; 2008; OFR; 2008-1131; Rowe, Michael C.; Thornber, Carl R.; Gooding, Daniel J.; Pallister, John S.

Year Published: 2008

Catalog of Mount St. Helens 2004-2007 Dome Samples with Major- and Trace-Element Chemistry

Sampling and analysis of eruptive products at Mount St. Helens is an integral part of volcano monitoring efforts conducted by the U.S. Geological Survey?s Cascades Volcano Observatory (CVO). The objective of our eruption sampling program is to enable petrological assessments of pre-eruptive magmatic conditions, critical for ascertaining mechanisms...

Thornber, Carl R.; Pallister, John S.; Rowe, Michael C.; McConnell, Siobhan; Herriott, Trystan M.; Eckberg, Alison; Stokes, Winston C.; Cornelius, Diane Johnson; Conrey, Richard M.; Hannah, Tammy; Taggart, Joseph E.; Adams, Monique; Lamothe, Paul J.; Budahn, James R.; Knaack, Charles M.
Catalog of Mount St. Helens 2004-2007 Dome Samples with Major- and Trace-Element Chemistry; 2008; OFR; 2008-1130; Thornber, Carl R.; Pallister, John S.; Rowe, Michael C.; McConnell, Siobhan; Herriott, Trystan M.; Eckberg, Alison; Stokes, Winston C.; Cornelius, Diane Johnson; Conrey, Richard M.; Hannah, Tammy; Taggart, Joseph E., Jr.; Adams, Monique; Lamothe, Paul J.; Budahn James R.; Knaack, Charles M.

Year Published: 2008

A-Priori Rupture Models for Northern California Type-A Faults

This appendix describes how a-priori rupture models were developed for the northern California Type-A faults. As described in the main body of this report, and in Appendix G, ?a-priori? models represent an initial estimate of the rate of single and multi-segment surface ruptures on each fault. Whether or not a given model is moment balanced (i.e...

Wills, Chris J.; Weldon, Ray J.; Field, Edward H.
A-Priori Rupture Models for Northern California Type-A Faults; 2008; OFR; 2007-1437-K; Appendix K in The Uniform California Earthquake Rupture Forecast, Version 2 (UCERF 2); Wills, Chris J.; Weldon, Ray J., II; Field, Edward H.

Year Published: 2008

Cascadia Subduction Zone

The geometry and recurrence times of large earthquakes associated with the Cascadia Subduction Zone (CSZ) were discussed and debated at a March 28-29, 2006 Pacific Northwest workshop for the USGS National Seismic Hazard Maps. The CSZ is modeled from Cape Mendocino in California to Vancouver Island in British Columbia. We include the same...

Frankel, Arthur D.; Petersen, Mark D.
Cascadia Subduction Zone; 2008; OFR; 2007-1437-L; Appendix L in The Uniform California Earthquake Rupture Forecast, Version 2 (UCERF 2); Frankel, Arthur D.; Petersen, Mark D.

Year Published: 2008

Compilation of Surface Creep on California Faults and Comparison of WGCEP 2007 Deformation Model to Pacific-North American Plate Motion

This Appendix contains 3 sections that 1) documents published observations of surface creep on California faults, 2) constructs line integrals across the WG-07 deformation model to compare to the Pacific ? North America plate motion, and 3) constructs strain tensors of volumes across the WG-07 deformation model to compare to the Pacific ? North...

Wisely, Beth A.; Schmidt, David A.; Weldon, Ray J.
Compilation of Surface Creep on California Faults and Comparison of WGCEP 2007 Deformation Model to Pacific-North American Plate Motion; 2008; OFR; 2007-1437-P; Appendix P in The Uniform California Earthquake Rupture Forecast, Version 2 (UCERF 2); Wisely, Beth A.; Schmidt, David A.; Weldon, Ray J., II

Filter Total Items: 2,461
Image: Flooding in Waterloo, IA
June 11, 2008

Flooding in Waterloo, IA

Downtown

Image: Flooding in Waterloo, IA
June 11, 2008

Flooding in Waterloo, IA

Downtown

Image: Flooding in Waterloo, IA
June 11, 2008

Flooding in Waterloo, IA

Downtown

Image: Flooding in Waterloo, IA
June 11, 2008

Flooding in Waterloo, IA

Downtown

Image: Flooding in Waterloo, IA
June 11, 2008

Flooding in Waterloo, IA

Downtown

Image: Flooding in Waterloo, IA
June 11, 2008

Flooding in Waterloo, IA

Downtown

Image: Flooding in Waterloo, IA
June 11, 2008

Flooding in Waterloo, IA

Downtown

Image: Seawall Blocking Flood Waters
June 11, 2008

Seawall Blocking Flood Waters

Seawall withstanding flood waters

Attribution: Natural Hazards
Image: Flooding in Waterloo, IA
June 11, 2008

Flooding in Waterloo, IA

Downtown

Image: Flooding of a house
June 10, 2008

Flooding of a house

Flooding of a house

Image: Flooding in Local Neighborhood
June 10, 2008

Flooding in Local Neighborhood

Flooding in local neighborhood

Image: Flooding in Finchfield, IA
June 10, 2008

Flooding in Finchfield, IA

Flooding of a house