In Greece, researchers have mapped many active faults using precise digital terrain models (DEMs) from the land registry office. This has resulted in the first comprehensive database of active faults in the country, called AFG (Active Faults Greece).
The database is based on the morphology of the terrain. It provides a fairly complete overview of known and many new seismic faults.
In total, the database contains 3,815 fault traces, grouped into 892 main faults. More than half of these appeared in this form for the first time.
There are also 35 surface fractures associated with historical earthquakes. Detailed mapping enables scientists to better understand the distribution of seismic sources in Greece.
Greece lies at the intersection of two tectonic plates. The African plate is pushing northwards, while the Eurasian plate is pushing southwards.
These movements cause constant deformation of the terrain. However, many faults remain difficult to see – they are hidden under dense vegetation, in cities or in confusing terrain.
The AFG map was created on a consistent scale of 1:25,000. This allows the faults to be observed and analysed fairly accurately across the country.
Greece is heavily dependent on tourism for its economy and also wants to play a role as an energy hub in the eastern Mediterranean. It is therefore important to assess the seismic risk as accurately as possible.
AFG statistics
Value
Total number of fault traces
3,815
Main faults
892
Faults mapped for the first time
More than 50%
Surface fractures with historical reference
35
Mapping scale
1:25,000
The results of the mapping are published in a scientific journal. They provide valuable information for geologists, construction planners and disaster control authorities.
Graphics and live data on current earthquakes in Greece can be found on specialised websites that continuously monitor seismic activity and provide immediate notifications.
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