State-of-the-art for assessing earthquake hazards in the US. Parameters for specifying intensity-related earthquake ground motions
Abstract
A set of 12 charts is presented relating Modified Mercalli intensity units to peak horizontal acceleration, velocity and duration for near field and far field locations, hard and soft sites, and sizes of earthquakes. Also shown is the mean, mean plus one standard deviation, mean plus two standard deviations, and the highest observed values. Ratios of vertical to horizontal motions and predominant periods are provided. These charts are for use with known fault sources and for floating earthquakes in zones where there are no identifiable causative faults. The procedure provides parameters for shaping time histories to be used for dynamic analyses.
- Publication:
-
Unknown
- Pub Date:
- September 1987
- Bibcode:
- 1987saae.reptR....K
- Keywords:
-
- Dynamic Characteristics;
- Earth Movements;
- Earthquake Damage;
- Far Fields;
- Geological Faults;
- Horizontal Orientation;
- Near Fields;
- Seismic Waves;
- Acceleration (Physics);
- Extremum Values;
- Hazards;
- Histories;
- Revisions;
- Sediments;
- Shear Properties;
- Size (Dimensions);
- Soils;
- Statistical Distributions;
- Time;
- United States;
- Velocity;
- Geophysics