Publications
Filter Total Items: 7611
Introduction: large-scale coastal behavior Introduction: large-scale coastal behavior
No abstract available.
Authors
Jeffrey H. List, Joost H. J. Terwindt
Volcanic investigations in the Commonwealth of the Northern Mariana Islands, April to May 1994 Volcanic investigations in the Commonwealth of the Northern Mariana Islands, April to May 1994
A team of U.S. Geological Survey geologists, a seismologist, and technicians gathered new geologic, seismic, and deformation data in the Commonwealth of the Northern Mariana Islands (CNMI). Nine volcanic islands on the active East Mariana Ridge north of Saipan were examined between April 20 and May 3, 1994. In addition, a new radio-telemetry seismic station was installed on the island of...
Authors
M. K. Sako, F. A. Trusdell, R. Y. Koyanagi, George Kojima, R. B. Moore
By
Natural Hazards Mission Area, Volcano Hazards Program, Volcano Science Center, Agrigan, Ahyi Seamount, Alamagan, Anatahan, Asuncion, Daikoku Seamount , East Diamante, Esmeralda Bank, Farallon de Pajaros, Fukujin Seamount , Guguan, Kasuga 2, Kīlauea, Maug Islands, Pagan, Ruby, Sarigan, South Sarigan Seamount, Supply Reef, Zealandia Bank
Effects of geothermal development on deformation in the Long Valley Caldera, eastern California, 1985-1994 Effects of geothermal development on deformation in the Long Valley Caldera, eastern California, 1985-1994
Long Valley caldera in east central California has been the site of crustal unrest in the form of seismicity and ground deformation in response to magmatic inflation since 1980. Uplift of the resurgent dome has totaled ∼0.6 m over the 1975–1992 period. Within this region of uplift, and near the southwestern edge of the resurgent dome, is the Casa Diablo area, which experienced relative...
Authors
M.L. Sorey, C. D. Farrar, G.A. Marshall, J.F. Howie
Look before you build: Geologic studies for safer land development in the San Francisco Bay area Look before you build: Geologic studies for safer land development in the San Francisco Bay area
This Circular provides a general description of the types of geologic hazards that exist throughout the United States. In nontechnical language this book describes how geologic information can be incorporated in the land-use development process and contains useful discussion of several examples from the San Francisco Bay area and elsewhere in the United States of how geologic information...
Authors
Martha Blair-Tyler
Relation of slow-moving landslides to earth materials and other factors in valleys of the Honolulu District of Oahu, Hawaii Relation of slow-moving landslides to earth materials and other factors in valleys of the Honolulu District of Oahu, Hawaii
No abstract available.
Authors
Stephen D. Ellen, L.S. Liu, R. W. Fleming, M.E. Reid, M. J. Johnsson
Inventory of landslides triggered by the 1994 Northridge, California earthquake Inventory of landslides triggered by the 1994 Northridge, California earthquake
The 17 January 1994 Northridge, California, earthquake (M=6.7) triggered more than 11,000 landslides over an area of about 10,000 km?. Most of the landslides were concentrated in a 1,000-km? area that includes the Santa Susana Mountains and the mountains north of the Santa Clara River valley. We mapped landslides triggered by the earthquake in the field and from 1:60,000-scale aerial...
Authors
Edwin L. Harp, Randall W. Jibson
Seismic velocity structure and composition of the continental crust: A global view Seismic velocity structure and composition of the continental crust: A global view
Seismic techniques provide the highest‐resolution measurements of the structure of the crust and have been conducted on a worldwide basis. We summarize the structure of the continental crust based on the results of seismic refraction profiles and infer crustal composition as a function of depth by comparing these results with high‐pressure laboratory measurements of seismic velocity for...
Authors
Nikolas I. Christensen, Walter D. Mooney
Geomagnetism applications Geomagnetism applications
The social uses of geomagnetism include the physics of the space environment, satellite damage, pipeline corrosion, electric power-grid failure, communication interference, global positioning disruption, mineral-resource detection, interpretation of the Earth's formation and structure, navigation, weather, and magnetoreception in organisms. The need for continuing observations of the...
Authors
Wallace H. Campbell
Crustal geophysics gives insight into new madrid seismic zone Crustal geophysics gives insight into new madrid seismic zone
No abstract available.
Authors
T.G. Hildenbrand, Eugene S. Schweig, Rufus D. Catchings, Victoria E. Langenheim, Walter D. Mooney, Thomas L. Pratt, W. D. Stanley
Continental roots go with the flow Continental roots go with the flow
No abstract available.
Authors
Walter D. Mooney
The Los Angeles Dam Story The Los Angeles Dam Story
In 1971, the near-failure of a dam during a magnitude 6.7 earthquake forced 80,000 people to evacuate their residences. In 1994, the replacement dam survived an almost identical earthquake with little damage. Underlying this progress in designing critical structures are years of research on the powerful shaking during large earthquakes.
Authors
Robert A. Page, David M. Boore, Robert F. Yerkes
Near real-time monitoring of seismic events and status of portable digital recorders using satellite telemetry Near real-time monitoring of seismic events and status of portable digital recorders using satellite telemetry
Near real-time monitoring of seismic events and status of portable 16-bit digital recorders has been established for arrays near Parkfield, Mammoth Lakes, and San Francisco, California. This monitoring system provides near real-time seismic event identification (rough location and magnitude) and a cost-effective means to maintain arrays at near 100% operational level. Principal...
Authors
R.J. Mueller, Meei-You Lee, M.J.S. Johnston, Roger D. Borcherdt, G. Glassmoyer, S. Silverman