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Filter Total Items: 3,121
Year Published: 2007

Miscellaneous High-Resolution Seismic Imaging Investigations in Salt Lake and Utah Valleys for Earthquake Hazards

Introduction In support of earthquake hazards and ground motion studies by researchers at the Utah Geological Survey, University of Utah, Utah State University, Brigham Young University, and San Diego State University, the U.S. Geological Survey Geologic Hazards Team Intermountain West Project conducted three high-resolution seismic imaging...

Stephenson, W.J.; Williams, R.A.; Odum, J.K.; Worley, D.M.
Miscellaneous High-Resolution Seismic Imaging Investigations in Salt Lake and Utah Valleys for Earthquake Hazards; 2007; OFR; 2007-1152; Stephenson, W. J.; Williams, R. A.; Odum, J. K.; Worley, D. M.

Year Published: 2007

Earthquake Rate Model 2.2 of the 2007 Working Group for California Earthquake Probabilities, Appendix D: Magnitude-Area Relationships

Summary To estimate the down-dip coseismic fault dimension, W, the Executive Committee has chosen the Nazareth and Hauksson (2004) method, which uses the 99% depth of background seismicity to assign W. For the predicted earthquake magnitude-fault area scaling used to estimate the maximum magnitude of an earthquake rupture from a fault's length...

Stein, Ross S.
Earthquake Rate Model 2.2 of the 2007 Working Group for California Earthquake Probabilities, Appendix D: Magnitude-Area Relationships; 2007; OFR; 2007-1162; Stein, Ross S.

Year Published: 2007

Historical changes in the Mississippi-Alabama barrier islands and the roles of extreme storms, sea level, and human activities

An historical analysis of images and documents shows that the Mississippi-Alabama (MS-AL) barrier islands are undergoing rapid land loss and translocation. The barrier island chain formed and grew at a time when there was a surplus of sand in the alongshore sediment transport system, a condition that no longer prevails. The islands, except Cat,...

Morton, Robert A.
Historical changes in the Mississippi-Alabama barrier islands and the roles of extreme storms, sea level, and human activities; 2007; OFR; 2007-1161; Morton, Robert A.

Year Published: 2007

Morphology and texture of modern sediments on the inner shelf of South Carolina's Long Bay from Little River Inlet to Winyah Bay

High-resolution sea-floor mapping techniques, including sidecan-sonar, seismic-reflection, swath bathymetric systems, and bottom sampling, were used to map the geologic framework offshore of the northern South Carolina coast in order to provide a better understanding of the physical processes controlling coastal erosion and shoreline change. Four...

Denny, J.F.; Baldwin, W.E.; Schwab, W.C.; Gayes, P.T.; Morton, R.; Driscoll, N.W.
Morphology and texture of modern sediments on the inner shelf of South Carolina's Long Bay from Little River Inlet to Winyah Bay; 2007; OFR; 2005-1345; Denny, J. F.; Baldwin, W. E.; Schwab, W. C.; Gayes, P. T.; Morton, R.; Driscoll, N. W.

Year Published: 2007

Rotational Seismology and Engineering Applications - Online Proceedings for the First International Workshop: Menlo Park, California, U.S.A.-September 18 to 19, 2007

Lee, William H K.; Celebi, Mehmet; Todorovska, Maria I.; Diggles, Michael F.
Rotational Seismology and Engineering Applications - Online Proceedings for the First International Workshop: Menlo Park, California, U.S.A.-September 18 to 19, 2007; 2007; OFR; 2007-1144; Compiled and Edited by Lee, William H. K.; Celebi, Mehmet; Todorovska, Maria I.; Diggles, Michael F.

Year Published: 2007

Rotational Seismology Workshop of February 2006

Introduction A successful workshop titled 'Measuring the Rotation Effects of Strong Ground Motion' was held simultaneously in Menlo Park and Pasadena via video conference on 16 February 2006. The purpose of the Workshop and this Report are to summarize existing data and theory and to explore future challenges for rotational seismology,...

Evans, John R.; Cochard, A.; Graizer, Vladimir; Huang, Bor-Shouh; Hudnut, Kenneth W.; Hutt, Charles R.; Igel, H.; Lee, William H.K.; Liu, Chun-Chi; Majewski, Eugeniusz; Nigbor, Robert; Safak, Erdal; Savage, William U.; Schreiber, U.; Teisseyre, Roman; Trifunac, Mihailo; Wassermann, J.; Wu, Chien-Fu
Rotational Seismology Workshop of February 2006; 2007; OFR; 2007-1145; Evans, John R.; Cochard, A.; Graizer, Vladimir; Huang, Bor-Shouh; Hudnut, Kenneth W.; Hutt, Charles R.; Igel, H.; Lee, William H. K.; Liu, Chun-Chi; Majewski, Eugeniusz; Nigbor, Robert; Safak, Erdal; Savage, William U.; Schreiber, U.; Teisseyre, Roman; Trifunac, Mihailo; Wassermann, J.; Wu, Chien-Fu

Year Published: 2007

Near-Surface Structure and Velocities of the Northeastern Santa Cruz Mountains and the Western Santa Clara Valley, California, From Seismic Imaging

Introduction The Santa Clara Valley (SCV) is located in the southern San Francisco Bay area of California and is bounded by the Santa Cruz Mountains to the southwest, the Diablo Ranges to the northeast, and the San Francisco Bay to the north (Fig. 1). The SCV, which includes the City of San Jose, numerous smaller cities, and much of the high-...

Catchings, R.D.; Gandhok, G.; Goldman, M.R.; Steedman, Clare
Near-Surface Structure and Velocities of the Northeastern Santa Cruz Mountains and the Western Santa Clara Valley, California, From Seismic Imaging; 2007; OFR; 2007-1039; Catchings, R. D.; Gandhok, G.; Goldman, M. R.; Steedman, Clare

Year Published: 2007

Comprehensive Areal Model of Earthquake-Induced Landslides: Technical Specification and User Guide

This report describes the complete design of a comprehensive areal model of earthquakeinduced landslides (CAMEL). This report presents the design process, technical specification of CAMEL. It also provides a guide to using the CAMEL source code and template ESRI ArcGIS map document file for applying CAMEL, both of which can be obtained by...

Miles, Scott B.; Keefer, David K.
Comprehensive Areal Model of Earthquake-Induced Landslides: Technical Specification and User Guide; 2007; OFR; 2007-1072; Miles, Scott B.; Keefer, David K.

Year Published: 2007

Earthquakes Pose a Serious Hazard in Afghanistan

This report is USGS Afghanistan Project No. 155. This study was funded by an Interagency Agreement between the U.S. Agency for International Development (USAID) and the U.S. Geological Survey. Afghanistan is located in the geologically active part of the world where the northward-moving Indian plate is colliding with the southern part of the...

Crone, Anthony J.
Earthquakes Pose a Serious Hazard in Afghanistan; 2007; FS; 2007-3027; Crone, Anthony J.

Year Published: 2007

WOVOdat Design Document: The Schema, Table Descriptions, and Create Table Statements for the Database of Worldwide Volcanic Unrest (WOVOdat Version 1.0)

WOVOdat Overview During periods of volcanic unrest, the ability to forecast near future activity has been a primary concern for human populations living near volcanoes. Our ability to forecast future activity and mitigate hazards is based on knowledge of previous activity at the volcano exhibiting unrest and knowledge of previous activity at...

Venezky, Dina Y.; Newhall, Christopher G.
WOVOdat Design Document: The Schema, Table Descriptions, and Create Table Statements for the Database of Worldwide Volcanic Unrest (WOVOdat Version 1.0); 2007; OFR; 2007-1117; Venezky, Dina Y.; Newhall, Christopher G.

Year Published: 2007

Terrestrial LIDAR investigation of the December 2003 and January 2007 activations of the Northridge Bluff landslide, Daly City, California

On December 20, 2003 and again on January 1, 2007, landslides occurred along the coastal bluff that forms the west boundary of Daly City, California sending debris as far as 290 meters downhill and 90 meters into the ocean. This area is known for large landslide events where 150-meter tall coastal bluffs extend southward along the west boundary of...

Collins, Brian D.; Kayen, Robert; Reiss, Thomas; Sitar, Nicholas
Terrestrial LIDAR investigation of the December 2003 and January 2007 activations of the Northridge Bluff landslide, Daly City, California; 2007; OFR; 2007-1079; Collins, Brian D.; Kayen, Robert; Reiss, Thomas; Sitar, Nicholas

Year Published: 2007

The International Geomagnetic Reference Field, 2005

This is a set of five world charts showing the declination, inclination, horizontal intensity, vertical component, and total intensity of the Earth's magnetic field at mean sea level at the beginning of 2005. The charts are based on the International Geomagnetic Reference Field (IGRF) main model for 2005 and secular change model for 2005-2010. The...

Rukstales, Kenneth S.; Love, Jeffrey J.
The International Geomagnetic Reference Field, 2005; 2007; SIM; 2964; Rukstales, Kenneth S.; Love, Jeffrey J.

Filter Total Items: 2,293
Image: 1997 Flooding in Grand Forks
April 21, 1997

1997 Flooding in Grand Forks

Boats on city streets of Grand Forks, North Dakota and East Grand Forks, Minnesota during the 1997 Red River of the North flood.

Image: 1997 Flooding in Grand Forks
April 18, 1997

1997 Flooding in Grand Forks

U.S. Geological Survey employees being transported to sites by National Guard personnel.

Image:  Red River of the North flooding in 1997
April 16, 1997

Red River of the North flooding in 1997

 A home diked during the flood of the Red River of the North in 1997.

Image:  Red River of the North flooding in 1997
April 16, 1997

Red River of the North flooding in 1997

Fire consumes an building on a farmstead near the Red River of the North in northeastern North Dakota.

Image:  Red River of the North flooding in 1997
April 16, 1997

Red River of the North flooding in 1997

 Diked homes at Grand Forks during the Red River of the North flood.

Image:  Red River of the North flooding in 1997
April 16, 1997

Red River of the North flooding in 1997

 Flooding of homes in Grand Forks, North Dakota in 1997.

Image: Flooding in Grand Forks, North Dakota in 1997
April 16, 1997

Flooding in Grand Forks, North Dakota in 1997

The flag of the United States of American flies over flood water in Grand Forks, North Dakota.

Image: Flooding in Grand Forks, North Dakota in 1997
April 16, 1997

Flooding in Grand Forks, North Dakota in 1997

Flood waters inundated Grand Forks, North Dakota and East Grand Forks, Minnesota.The picture is looking west to Grand Forks, North Dakota and the  USGS gage house is the small white square in the center of the picture.

Image: Northridge, CA Earthquake Damage
January 1, 1994

Northridge, CA Earthquake Damage

Collection of USGS still images taken after the January 17, 1994 Northridge earthquake highlighting the damage to buildings and infrastructure.

Attribution: Natural Hazards
Image: Northridge, CA Earthquake Damage
January 1, 1994

Northridge, CA Earthquake Damage

Collection of USGS still images taken after the January 17, 1994 Northridge earthquake highlighting the damage to buildings and infrastructure.

Attribution: Natural Hazards
Image: Northridge, CA Earthquake Damage
January 1, 1994

Northridge, CA Earthquake Damage

Collection of USGS still images taken after the January 17, 1994 Northridge earthquake highlighting the damage to buildings and infrastructure.

Attribution: Natural Hazards
Image: Northridge, CA Earthquake Damage
January 1, 1994

Northridge, CA Earthquake Damage

Collection of USGS still images taken after the January 17, 1994 Northridge earthquake highlighting the damage to buildings and infrastructure.

Attribution: Natural Hazards