Survey and Planning
Terrain Survey Assessment
Land movements due to Earth quake at Napa Valley
Energy, Hazards & Risks
- Earthquakes along the equatorial belt can create devastating impacts to the infrastructures on the ground and major land movements due to the shift of the tectonic plates
- The colourful circles you see on the 4th image represents interferometric fringes created due to ground displacement effects.
- One full coloured circle indicates a change of 28mm in the ground-to-satellite range between the pre-and post earthquake images.