Maps
Mapped Ground Motion Hazard Values
In this release of hazard maps we present numerous maps with varying parameters available for download below. Each of these maps were produced assuming firm rock soil conditions at 760 m/sec.
| Region | Spectral Acceleration | Return Period | Format |
|---|---|---|---|
| California/Nevada | Peak Ground Acceleration | 10% in 50 years | [ PNG | PDF ] |
| California/Nevada | Peak Ground Acceleration | 2% in 50 years | [ PNG | PDF ] |
| California/Nevada | Peak Ground Acceleration | 5% in 50 years | [ PNG | PDF ] |
| California/Nevada | 0.2 second SA (5 Hz) | 10% in 50 years | [ PNG | PDF ] |
| California/Nevada | 0.2 second SA (5 Hz) | 2% in 50 years | [ PNG | PDF ] |
| California/Nevada | 0.2 second SA (5 Hz) | 5% in 50 years | [ PNG | PDF ] |
| California/Nevada | 0.3 second SA (3.33 Hz) | 10% in 50 years | [ PNG | PDF ] |
| California/Nevada | 0.3 second SA (3.33 Hz) | 2% in 50 years | [ PNG | PDF ] |
| California/Nevada | 0.3 second SA (3.33 Hz) | 5% in 50 years | [ PNG | PDF ] |
| California/Nevada | 1.0 second SA (1.0 Hz) | 10% in 50 years | [ PNG | PDF ] |
| California/Nevada | 1.0 second SA (1.0 Hz) | 2% in 50 years | [ PNG | PDF ] |
| California/Nevada | 1.0 second SA (1.0 Hz) | 5% in 50 years | [ PNG | PDF ] |
| Central/Eastern US | Peak Ground Acceleration | 10% in 50 years | [ PNG | PDF ] |
| Central/Eastern US | Peak Ground Acceleration | 2% in 50 years | [ PNG | PDF ] |
| Central/Eastern US | Peak Ground Acceleration | 5% in 50 years | [ PNG | PDF ] |
| Central/Eastern US | 0.2 second SA (5 Hz) | 10% in 50 years | [ PNG | PDF ] |
| Central/Eastern US | 0.2 second SA (5 Hz) | 2% in 50 years | [ PNG | PDF ] |
| Central/Eastern US | 0.2 second SA (5 Hz) | 5% in 50 years | [ PNG | PDF ] |
| Central/Eastern US | 0.3 second SA (3.33 Hz) | 10% in 50 years | [ PNG | PDF ] |
| Central/Eastern US | 0.3 second SA (3.33 Hz) | 2% in 50 years | [ PNG | PDF ] |
| Central/Eastern US | 0.3 second SA (3.33 Hz) | 5% in 50 years | [ PNG | PDF ] |
| Central/Eastern US | 1.0 second SA (1.0 Hz) | 10% in 50 years | [ PNG | PDF ] |
| Central/Eastern US | 1.0 second SA (1.0 Hz) | 2% in 50 years | [ PNG | PDF ] |
| Central/Eastern US | 1.0 second SA (1.0 Hz) | 5% in 50 years | [ PNG | PDF ] |
| Conterminous US | Peak Ground Acceleration | 10% in 50 years | [ PNG | PDF ] |
| Conterminous US | Peak Ground Acceleration | 2% in 50 years | [ PNG | PDF ] |
| Conterminous US | Peak Ground Acceleration | 5% in 50 years | [ PNG | PDF ] |
| Conterminous US | 0.2 second SA (5 Hz) | 10% in 50 years | [ PNG | PDF ] |
| Conterminous US | 0.2 second SA (5 Hz) | 2% in 50 years | [ PNG | PDF ] |
| Conterminous US | 0.2 second SA (5 Hz) | 5% in 50 years | [ PNG | PDF ] |
| Conterminous US | 0.3 second SA (3.33 Hz) | 10% in 50 years | [ PNG | PDF ] |
| Conterminous US | 0.3 second SA (3.33 Hz) | 2% in 50 years | [ PNG | PDF ] |
| Conterminous US | 0.3 second SA (3.33 Hz) | 5% in 50 years | [ PNG | PDF ] |
| Conterminous US | 1.0 second SA (1.0 Hz) | 10% in 50 years | [ PNG | PDF ] |
| Conterminous US | 1.0 second SA (1.0 Hz) | 2% in 50 years | [ PNG | PDF ] |
| Conterminous US | 1.0 second SA (1.0 Hz) | 5% in 50 years | [ PNG | PDF ] |
Select Hazard Curves
