The geocoded terrain corrected SAR images 
are the basic input data sets for the 
generation of mosaics, the Radarmap 
Germany (KOSMANN et al.,1993). The precise 
gecoding procedure guarantees a geometric 
accuracy of 30 m. This radar map (Fig.3) 
as well as SIR-C- X-Band data from the 
Ueberlingen test site were used for 
lineament analysis. (The term lineament is 
a neutral term for all linear, rectilinear 
or slightly bended image elements.) The 
radar images, because of their coverage 
allow an interpretation of lineaments and 
of structural trends that would have been 
impossible from field mapping alone. The 
mapped lineaments are represented in 
Fig. 4. 
The nature of the linear traces visible on 
ERS-1-image mosaics from SW- Germany 
variies along strike and is represented by 
some combinations of linear steep valleys, 
especially in the Black Forest Area, and 
depressions, linear hydrographic features 
and drainage segments,linear hills, ridges 
and abrupt ending straight scarp lines. 
Available geologic and  geophysic data 
indicate correlations of the distinct 
expressed lineaments with fault zones in 
the subsurface. Comparisons of lineament 
maps with  seismotectonic data suggest 
that some of most prominent lineament 
zones are deep-seated structures as for 
example the Hegau-fault zone (SMIT, 1989). 
The pattern of linear features corresponds 
.o the tensional stress field known in 
this area. The radar imageries from 
SW-Germany , thus, provide essential clues 
to the tectonic setting. The integrated 
analysis of geologic and seismologic data 
as well as field observations with 
lineament data derived from satellite 
radar images from Southwest-Germany allows 
the identification of fault zones that 
might be of importance during seismic 
events and might influence further damage 
intensities. Precise delineation of these 
faults can be a veritable input in seismic 
risk analysis. 
3. COMPARISON OF ISOSEISMAL MAPS 
WITH  LINEAMENT MAPS 
Damage resulting from an earthquake 
variies spatially. Within the same zone of 
shock intensity, the damage may vary 
locally, being a function of both the type 
of structure and ground conditions, as for 
example of: afaults and fractures. 
Investigations of groundstructure 
interactions form the necessary basis for 
the analysis and evaluation of the 
earthquake damage risk. 
The interpretation of satellite radar data 
contributes to a better understanding of 
the influence of local soil and structural 
conditions on seismic wave radiational 
Propagation and on ground motions: 
Lineament maps derived from interpreta- 
tions of ERS-1-data were compared with 
available macroseismic- ob-servations of 
stronger earthquakes (intensities of 7 to 
on the MEDVEDEV -SPONHEUER - 
KARNIK-Scale). As an example ist shown the 
isoseismal map of the 16.11.1911 event. 
The correlation and combination of the 
16.11.1911-isoseismal map with the radar 
lineament map  (Fig.4 and 5) clearly 
  
  
  
  
  
Fig.4: Lineament Map based on Evaluations 
of Satellite Radar Imageries from 
Southwest-Germany 
indicates that areas of high damage 
intensities are related to surface traces 
of larger faults and to areas with a dense 
lineament pattern. They are concentrated 
in | areas of crossing lineaments. A 
combination of epicenter and lineament map 
is presented in Fig.6. Epicenters are 
concentrated predominantly in areas of 
crossing lineaments (Theilen-Willige, 
1995). 
  
  
  
  
  
Fig.5: Combination of the Macroseismic Map 
of the Swabian Jura Earthquake(16. 
11.1911, Schneider,1979) and the 
ERS-1-derived Lineament Map 
707 
International Archives of Photogrammetry and Remote Sensing. Vol. XXXI, Part B7. Vienna 1996