1. Geohazard Supersites and Natural Laboratories Report to DLR Falk Amelung, GEO task leader September 2011

2. Hawaii Supersite

3. Halemaumau crater Summit vent Hawaii Supersite (1) : Kilauea crater rim instability processed using 30 m DEM Richter & Poland, HVO Photos: HVO TerraSAR-X interferogram

4. Halemaumau crater Summit vent processed using 3 m DEM Richter & Poland, HVO Photos: HVO TerraSAR-X interferogram Hawaii Supersite (1) : Kilauea crater rim instability

5. Summit vent processed using 3 m DEM Richter & Poland, HVO TerraSAR-X interferogram Hawaii Supersite (1) : Kilauea crater rim instability

6. Growth with time Richter & Poland, HVO Hawaii Supersite (1) : Kilauea crater rim instability

7. We are looking for a 0.5 fringe signal near the coast in this image Atmospheric artifacts dominate the signal in each interferogram Will use time series methods to extract the signature Interferograms courtesy Piyush Agram From Howard Zebker, Stanford University Hawaii Supersite (2) : Slow Slip Event at Kilauea

8. Kilauea rift eruption March 2011 A propagating fissure (surface expression of a dike)

9. Baker and Amelung, U of Miami Hawaii Supersite (3) : Kilauea’s magma system February 2011 intrusionPost-intrusion inflation LOS velocity from SBAS time-series Envisat TSX ALOS GPS Intrusion causes step in time series! Displacement [cm] GPS station inside caldera

10. Mt. Etna Supersite

11. Mt. Etna Supersite: TerraSAR-X Descending Orbits Time Interval: Sep 2008 – Dec 2009 27 acquisitions 76 Interferograms Ground Resolution: ~ 30 meters Look Angle: 42.9 deg < -6> 6 cm/year Mean deformation velocity

12. ENVISAT 90x90 m TerraSAR-X 30x30 m ENVISAT vs. TerraSAR-X: Spatial Coverage

13. TerraSAR-X vs. ENVISAT: Time Sampling ENVISAT: 35 days TerraSAR-X: 11 days

14. Tohoku-oki earthquake Supersite

15. E. Fielding, JPL Tohoku-Oki earthquake event Supersite Pixel tracking offset of M 6.6 aftershock of April 11 Colorscale 3 m 17 March, 19 April images

16. Septentrional fault: GPS: ~10 mm/yr slip rate Last earthquake about 1230 A.D. (8 m displacement accumulated)  magnitude 7.5-8 overdue! seismic hazard very high in Dominican Republic! pop. 10 million, 5 million tourists/yr minimal seismic network (2 people) USGS open file report Hispaniola Supersite

17. Objective: estimate seismic hazard in Santiago, D. R. (2 million pop.) ~5 mm/yr LOS velocity Hispaniola Supersite TerraSAR-X interferograms 11 days22 days Coherence sufficient  slip rate measurement possible with 2-3 years of data! Need acquisitions every 11-22 days ! Expected signal Fattahi, Wdowinski, Amelung, U of Miami