In this paper

tsunami hazard monitoring system with Small Satellite applied on geological hazard is introduced. The DMC 32-meter multi-spectral remote sensing image acquired on 7 January 2005 for hazard areas in Sumatra Island

Indonesia was processed with image geometric correction

place name annotation

band combination with B2（R）

B1（G）

B3（B） and histogram enhancement. The produced image shows that although the overall texture

which show collectively information is weak due to dense vegetation

it is useful to tsunami hazard areas. In order to enhance tone difference of the different plant cover areas and textural information at the different regions

the data processing experiment based on ratio transform and combination has been done to enhance the image texture character

this is in effect benefit to enhance spatial texture information. Based on the DMC enhanced image map

by man-computer interactive interpretative way

the obvious disciplinary linear and ring texture information are extracted and then mapped

regarding it as basic information for further analysis to this area structure activity and geological hazard caused by active tecfonics. By means of synthetic analysis for image texture information

a lot of linear information and some ring information

as well as some image sign of volcanic apparatus are found in this area. These image characteristics are possibly related local geological activities

such as neo-tectonic

active fault

and volcanic active center and volcanic apparatus etc. Considering the known geologic information

the DMC 3-D image and the early TM images

and focusing on the special relief feature and drainage

the character of linear feature distribution shown on remote sensing image and remote sensing explanation signs for typical geologic body and fault structure

a part of linear and ring image features are explained in term of geological content. The north to west strike fault is considered as dominant fault

ranking second is the north-east strike fault which is the matched uprightness to former one. The fault distribution character with potential controlling or inducing geological hazard in this area is initially analyzed

furthermore

three regions of easily broken geological hazard of mud-rock flow

collapse and landslide and two potential burst districts of volcanic activity are predicted. These deduced target places have the precondition and condition of the form

pass and accumulation for mud-rock flow

collapse and landslide

and if the plant cover are suffered from being destroyed and heavy rain

then it is possible to produce those geologic disasters. The volcanic activity areas are almost located into the junction parts along north-east fault zone with north-west fault zone. Considering the geological structure and remote sensing image character

the earthquake and volcanic activity could be activated and revived after undergone plate movement

and possibly form next new geological hazard. Generally speaking

the above mentioned remote sensing geologic information which ought to further be investigated and confirmed from related materials and practice

will benefit for reducing disaster

and fighting natural disaster on the island. For fundament establishment reconstruction after this great earthquake and tsunami hazard

this has an important significance.