## 1 Introduction  
This study is focused on the impact of the Eurocode 8 draft revision [1] on the seismic zonation of Romania. The derivation of the site amplification factors from the Eurocode 8 draft revision [1] is presented in the study of [PERSON] et al. [2]. Significant changes, from the point of view of site amplification factors, are introduced in the Eurocode 8 draft revision [1] compared to the current version of the Eurocode 8 [3]. The Eurocode 8 draft revision [1] proposes intensity-dependent site amplification factors, contrasting to the constant soil parameters used in the current version of the Eurocode 8 [3]. The site amplification factors proposed in the Eurocode 8 draft revision [1] were derived using a database of ground motions recorded during shallow earthquakes that had focal depths of less than 35 km [2]. The procedure used for the calibration of the site amplification factors for the original version of the Eurocode 8 [3] is presented in the study by [PERSON] et al. [4]. On the other hand, the seismic hazard of the Romanian territory is dominated by the Vrancea intermediate-depth seismic source for the southern and eastern parts of the country, while the crustal seismic sources are dominant for the sites situated in the western part of the country. According to [PERSON] et al. [5], the Vrancea intermediate-depth source is situated at the contact point of multiple tectonic units: the East European platform (north and north-east); the Scythian Platform (east); the North Dobrogean orogen (south-east); the Moesian platform (south and south-west); the Carpathians orogen; and the Transylvanian basin (north-west). The seismicity of this source is concentrated in a narrow seismogenic volume reaching focal depths in excess of 200 km. On average, 2-3 large magnitude earthquakes (moment magnitudes M\({}_{\rm W}\) > 7.0) occur in this region in each century [6]. A more detailed evaluation of the tectonic regime of this seismic source can be found in the study by [PERSON] et al. [7]. [PERSON] et al. [8] have proposed intensity-dependent site amplification factors for Vrancea intermediate-depth earthquakes using the procedure from the studies of [PERSON] et al. [9; 10]. The main parameters used for the site classification of the 122 sites analysed in the study of [PERSON] et al. [8] were the sites' fundamental period T\({}_{0}\) and the thickness and the average shear wave velocity of the soil profile, which were evaluated using both borehole data and the other proxy measures (topographic slope method). Significant differences were observed for the site amplification factors of soil formations that had a great overall thickness (>60.0 m), which were derived using the comparison of ground motion recordings from crustal earthquakes and those computed from the recordings of Vrancea intermediate-depth seismic events. For the sites situated in the southern part of Romania, nonlinear soil behaviour was expected under the influence of significant Vrancea intermediate-depth earthquakes [11]. Other site condition proxies or combinations were proposed in different studies [12; 13]. The seismic design of structures in Romania has officially been enforced since 1963. After the major Vrancea intermediate-depth earthquake of March 1977, vast changes in the seismic design code were performed. Over the past 30 years, no major earthquake (either shallow or intermediate-depth) has occurred in Romania, so an evaluation of the design response spectra using ground motion recordings cannot be performed. [PERSON] et al. [14; 15] have evaluated which earthquakes can likely cause the exceedance of seismic design actions in Italy. The authors estimated that the area in which the seismic design action can be exceeded may be of the order of several thousand square kilometres for Italy and that the exceedances can occur for seismic events that have significantly smaller magnitudes compared to those taken into account in seismic hazard assessment.