SEARCH · USGS Science
Results for “Engineering Geology”
Search indexed USGS publications on groundwater, aquifers, geologic maps, mineral resources and earthquakes. Explore source records by subject and place.
Quote a phrase for an exact phrase match. Source license links do not imply unrestricted reuse.
Proceedings of the U.S. Geological Survey Front Range Infrastructure Resources Project stakeholder's Meeting
Explore the source record for details and available documents.
Simulation of acceleration field of the Lushan earthquake (Ms7.0, April 20, 2013, China)
The acceleration field of the Lushan earthquake (Ms7.0, April 20, 2013, China) is simulated using a new modified version of the stochastic finite-fault method (EXSIM) based on a dynamic corner frequency approach. To incorporate the effect of heterogeneous slip distribution on the variation of source spectrum, we adopt an empirical source spectral model and derive the corresponding dynamic parameters, which vary with the cumulative seismic moment of the ruptured area. The new modified method is validated by: 1) comparison of the simulation results with those obtained from the EXSIM method using near-fault ground motion data of the 1994 Northridge earthquake; 2) comparison of simulated PGA contour map inferred from synthetic time histories at 315 grid locations with the observed PGA shakemap for the 2013 Lushan earthquake; 3) comparison of simulated PGA with those predicted by ground-motion prediction equations (GMPEs); and 4) comparison of simulated time histories with observed acceleration records at six strong motion stations during the mainshock of the Lushan earthquake, in which local site response is considered in the simulation. These comparisons confirm the validity of the new simulation procedure for purposes of regional strong ground motion estimation. Limitations of the procedure in modeling the phasing of different arrivals in the seismic signal and near-surface response of geologic deposits are discussed.
Pumpage data from public supply wells at Anchorage, Alaska, 1957- 1985
Tables of data for each well include monthly and yearly pumpage totals, average monthly pumpage for each year, and monthly (January-December) average pumpage for the period of record. Total monthly pumpage for each well is also portrayed graphically. The data are also accessible on computer files at the U.S. Geological Survey 's Alaska District Office in Anchorage.
Water resources data for Georgia, water year 1973
Water resources data for the 1973 water year for Georgia include records of streamflow or reservoir storage at gaging stations, partial record stations, miscellaneous sites, and records of water-quality data on the chemical and physical characteristics of surface-water as well as records for a few pertinent gaging and water-quality stations in bordering States. The records were collected and computed by the Water Resources Division of the U.S. Geological Survey under the direction of John R. George, district chief. These data represent the Georgia portion of the National Water Data System collected by the U.S. Geological Survey and cooperating State and Federal agencies.
Water resources data for Maine, water year 1975
Water resources data for the 1975 water year for Maine consist of records of stage, discharge, and water quality of streams; stage and contents of lakes and reservoirs; and water-levels and water quality of wells. This report contains discharge records for 65 gaging stations; stage only records for 1 gaging station; contents for 17 lakes and reservoirs; water quality for 33 gaging stations and 11 wells; and water levels for 12 observation wells. Additional water data were collected at various sites, not part of the systematic data collection program, and are published as miscellaneous measurements. These data represent that part of the National Water Data System operated by the U. S. Geological Survey and cooperating State and Federal agencies.
Water resources data for Maine, water year 1976
Water resources data for the 1976 water year for Maine consist of records of stage, discharge, and water quality of streams; stage and contents of lakes and reservoirs; and water-levels and water quality of wells. This report contains discharge records for 66 gaging stations; stage only records for 2 gaging stations; contents for 17 lakes and reservoirs; water quality for 13 gaging stations and 22 wells; and water levels for 17 observation wells. Additional water data were collected at various sites, not part of the systematic data collection program, and are published as miscellaneous measurements. These data represent that part of the National Water Data System operated by the U.S. Geological Survey and cooperating State and Federal agencies.
Water resources data for Maine, water year 1978
Water resources data for the 1978 water year for Maine consist of records of stage, discharge, and water quality of streams; stage and contents of lakes and reservoirs; and water-levels and water quality of wells. This report contains discharge records for 68 gaging stations; stage only for 2 gaging stations; contents for 17 lakes and reservoirs; water quality for 13 gaging stations and 22 wells; and water levels for 22 observation wells. Additional water data were collected at various sites, not part of the systematic data collection program, and are published as miscellaneous measurements. These data represent that part of the National Water Data System operated by the U.S. Geological Survey and cooperating State and Federal agencies.
Water resources data for Maine, water year 1979
Water resources data for the 1979 water year for Maine consist of records of stage, discharge, and water quality of streams; stage and contents of lakes and reservoirs; and water levels and water quality of wells. This report contains discharge records for 69 gaging stations; stage only for 2 gaging stations; contents for 17 lakes and reservoirs; water quality for 13 gaging stations and 27 wells; and water levels for 21 observation wells. Additional water data were collected at various sites, not part of the systematic data collection program, and are published as miscellaneous measurements. These data represent that part of the National Hater Data System operated by the U.S. Geological Survey and cooperating State and Federal agencies.
Water resources data for Maine, water year 1980
Water resources data for the 1980 water year for Maine consist of records of stage, discharge, and water quality of streams; stage and contents of lakes and reservoirs; and water levels and water quality of wells. This report contains discharge records for 61 gaging stations; stage only for 2 gaging stations; contents for 17 lakes and reservoirs; water quality for 14 gaging stations and 12 wells; and water levels for 23 observation wells. Additional water data were collected at various sites, not part of the systematic data collection program, and are published as miscellaneous measurements. These data represent that part of the National Water Data System operated by the U.S. Geological Survey and cooperating State and Federal agencies.
Water resources data for Maine, water year 1981
Water resources data for the 1981 water year for Maine consist of records of stage, discharge, and water quality of streams; stage and contents of lakes and reservoirs; and water levels and water quality of wells. This report contains discharge records for 66 gaging stations; stage only for 2 gaging stations; contents for 17 lakes and reservoirs; water quality for 19 gaging stations and 8 wells; and water levels for 24 observation wells. Additional water data were collected at various sites, not part of the systematic data collection program, and are published as miscellaneous measurements. These data represent that part of the National Water Data System operated by the U.S. Geological Survey and cooperating State and Federal agencies.
Surface water supply of the United States, 1907-8, Part II. South Atlantic Coast and eastern Gulf of Mexico
This volume contains results of flow measurements made on certain streams in the United States. The work was performed by the water-resources branch of the United States Geological Survey, either independently or in cooperation with organizations mentioned herein. These investigations are authorized by the organic law of the Geological Survey (Stat. L., vol. 20, p. 394)...
Surface water supply of the United States, 1907-8, Part III. Ohio River Basin
This volume contains results of flow measurements made on certain streams in the United States. The work was performed by the water-resources branch of the United States Geological Survey, either independently or in cooperation with organizations mentioned herein. These investigations are authorized by the organic law of the Geological Survey (Stat. L., vol. 20, p. 394)...
Surface water supply of the United States, 1907-8, Part IV. St. Lawrence River Basin
This volume contains results of flow measurements made on certain streams in the United States. The work was performed by the water-resources branch of the United States Geological Survey, either independently or in cooperation with organizations mentioned herein. These investigations are authorized by the organic law of the Geological Survey (Stat. L., vol. 20, p. 394)...
U.S. Geological Survey: earth science in the public service
No abstract available.
U.S. Geological Survey: earth science in the public service
No abstract available.
Oculina Bank - Geology of a Deep-Water Coral Reef Habitat off Florida
Explore the source record for details and available documents.
Geology of Shelf-Edge Habitats of the West Florida Shelf
Explore the source record for details and available documents.