San Francisco earthquake risk forecast. Satellite image of California,USA,showing earthquake faults (red lines) and synthetic aperture radar patterns of seismic deformations resulting from a model earthquake on the San Andreas fault (yellow line). The changes in colour represent the displacement of the ground due to the earthquake. The model has estimated that there is a 25 per cent chance of an earthquake measuring magnitude 7 or above in the next 20 years along the San Andreas fault. SAR images are created by transmitting successive pulses of radio waves to "illuminate" a target scene,and the echo of each pulse is received and recorded | |
Lizenzart: | Lizenzpflichtig |
Credit: | Science Photo Library / NASA / UCDAVIS / JPL |
Bildgröße: | 2577 px × 2452 px |
Modell-Rechte: | nicht erforderlich |
Eigentums-Rechte: | nicht erforderlich |
Restrictions: | - |