East of the Velke Vrbno Dome, the important Ramzova tectonic line
is situated with the Branna Group of probably Devonian age (Middle Paleozoic, around 380 million years) behind it, which covers only a small, south-eastern section in the map.
An earthquake at the M8 level has occurred at intervals of 1,000 years on average in the 150-kilometer active fault zone that runs from Nagano Prefecture to Shizuoka Prefecture along the Itoigawa-Shizuoka tectonic line.
The committee will also evaluate the probability of a quake occurring in the Median Tectonic Line (Chuo-kozosen) fault zone which stretches for 1,000 km from the Kii Peninsula to Shikoku, as it could cause extensive damage.
The Tectonic line now encompasses 40 items, including back wraps and ankle, wrist and elbow supports that are sold in leading chain drug stores, including CVS Corp.
For example, ex-Miami Dolphin football star Dan Marino endorses the Tectonic line.
The western termination of this crystalline units presumably follows the tectonic line
that belongs to the Diendorf fault system.
A WNW-ESE tectonic line
borders the granite on the west.
The center of the uplift basin was removed toward to the north and its oval geometry demonstrates longer axis that is NWSE orientated and parallel to a tectonic line
(as it is in the case of the formerly existed uplift basin).
Of the same direction is also a pronounced field depression or even gorge located uphill from the cave entrance, where a huge block of bedrock was tilted along a tectonic line
providing a precondition for development of an abyss-cave system.
Geophysical work will focus on verifying the presence and significance of the parameters of these structures, in particular their thickness, slope analysis of the degree of rock in fault zones and derive the continuation tectonic lines
at greater depths.
The genesis of serpentinites, which locally occur at tectonic lines
, is associated with similar settings.
The tectonic situation in the surroundings of the cave is analysed in detail by Hartvich and Valenta (2011), who tried to link the measured faults with the tectonic lines
in the vicinity.