## 3 Geological Data Interpretation
The most important thing is to point out the causes of the formation of structures, their movements and the most active sections of faults. In the regional space, the original regional tectonic movements are the movements of the African plate. There is significant compression of space in Italy, and movements of geological structures towards NE and NNE prevail along the contact with the Adriatic microplate (AMP in Figure 1). The presence of recent tectonic activity is directly indicated by the numerous epicentres of earthquakes that occurred in the period 2004 to 2021 (Figure 4a) (source EMSC) and the Adriatic Microlate (AMP) is moving towards NE, NNE and in Istria towards N.  
Figure 6: (**a**) Velocity vectors directions on geodetic points in Croatia, averaged velocity vector directions on geodetic points in Italy and seismic activity from 2004 to 2021. Legend: 1—annual velocity directions on geodetic points in Croatia; 2—averaged velocity directions on geodetic points in Italy; 3—earthquake epicentres in the period 2004—2021 with M > 3. (EMSC). (**b**) velocity directions on geodetic points in Italy—part (from [3]). Figure 7 shows the recent geological structure setting in the Dinarides (D, SD) and Adriatic (A) regional structural unit. The most important faults of the structural setting that border the regional structural units are emphasized. There are a series of faults within each unit that extend along the particularly large structures and prominent units. The faults are mostly reversed with opposite responses due to the prevalence of constant space compression. Figure 7: (**a**) Recent geological structural setting and tectonic activity in Dinaric space and Adriatic regional structural unit. Legend: 1—regional geologic structural units: a—Adriatic microplate (AMP) and Adriatic (A) unit, b—Dinarides: Dinaric (D) and Supradimaric (SD); 2—the most prominent structural units within the regional geological structural units with reverse faults of opposite vergence along fault walls: Cáxária–Ucka (1), Velebit (2), Mosor–Biokovo (3), Dinara–Kamesnica (4), Kapela (5), Grmec (6), Golija (7), Petrova Gora–Kozara (8); 3—major large structures; 4—the most important faults adjacent to regional structural units and parts of the Pannonian Basin, along with the Trieste–Ucka–Vis fault (1), Vis–South Adriatic fault (2), Ilirska Bistrica–Rijeka–Vinodol fault and continuation of Velebit–Sinj fault (3), Mosor–Biokovo–Dubrovnik fault (4), Ljubljana–Karlovac–Slunj fault (5), and southern boundary fault of the Pannonian Basin (6); 5—other important faults; 6—reverse faults; 7—faults of indeterminate character; 8—direction of horizontal movement along the fault; 9—direction of movement of structure parts along the surface according to geological data; 10—directions of annual velocity at geodetic points in mm/yr. (**b**) Seismotectonic profile of Rijeka area. Legend: 1—earthquake hypoccenters with a magnitude of (a) <4, (b) 4–5, and (c) >5.2; 2—esistemotecnically active area; 3—faults included in the seismotectionically active areas and the most important Ilirska Bistrica–Rijeka–Vinodol fault (3); 4—other seismotectionically active faults; 5—the probable footwall surface of carbonate rock complex; 6—layers of rocks along the surface; 7—rocks on the surface: Pg (Paleogene)—limestones and flysch; K (Cretaceous)—predominantly limestones and dolomites; J (Jurassic)—limestones and dolomites; T (Triassic)—dolomites, limestones, marls, sandstones, and eruptives; and Pz (Paleozoic)—mainly shale, limestones, conglomerates, and sandstones. It is vital to point out the structures' origins, movements, and the most active sections of faults. The source of the tectonic movements are movements of the Adriatic microplate (AMP). Certain rock complexes with a higher density that are responsible for building the Dinarides resist these movements. Considerable space compression, reverse structures, and faults occur. New geological and geodetic data show the narrowing of the AMP and the existence of southern and northern parts.