【正文】 DOI: Sonmez, H. 2021. Modification to the liquefaction potential index and liquefaction susceptibility mapping for a liquefactionprone area (Inegol– Turkey). Environmental Geology 44 (7):862–871. Sonmez, B., Ulusay, R. amp。 Chung, . 1985. The influence of SPT procedures in soil liquefaction resistance evaluations. Journal of the Geotechnical Engineering Division, ASCE 111(12):1425–1445. Stewart, ., Liu, . amp。 Ku, . 2021. Assessing CPTbased methods for liquefaction evaluation with emphasis on the cases from the ChiChi, Taiwan, earthquake. Soil Dynamics and Earthquake Engineering 22: 241–258. Maravelakis (1943). Geological and macroseismic study of the devastating earthquake of Larissa, 1st March 1941, p. 27 Papathanassiou, G. 2021. LPIbased approach for calibrating the severity of liquefactioninduced failures and for assessing the probability of liquefaction surface evidence, Engineering Geology. 96:94–104. Seed, . amp。 Yasuda, S. 1978. A practical method for assessing soil liquefaction potential based on case studies at various sites in Japan. Proc. 2nd International Conference on Microzonation: 885–896. Iwasaki, T., Tokida, K., Tatsuoka, F., Watanabe, S., Yasuda, S. amp。 Papathanassiou, G. 2021. Liquefactioninduced ground surface study from 2021 Lefkas (Greece) earthquake, International Symposium Geology and Linear Infrastructures, Lyon, France (2021) (in CD). Chu, ., Stewart, ., Lee, S., Tsai, ., Lin, ., Chu, ., Seed, ., Hsu, ., Yu, . amp。 Pitilakis (1995). Initially, the liquefaction susceptibility of the soil layers was evaluated based on the remendations proposed by Seed et al. (2021) and afterwards,the factor of safety and the LPI per borehole were puted using the procedure described in section . However, as much of the city of Larissa is built on fluvial sediments, it was also decided to investigate the influence of the nearsurface geology on the final acceleration value. In order to account for amplification effect due to surface geology, the regression proposed by Stewart et al. (2021) equal to g. The thickness of the non liquefiable cap layer was determined using the criteria followed by Papathanassiou (2021) and described above. The results from the sites were plotted using the parameters of LPI and H as shown in Figure 3. only two sites plotted within the zone of liquefaction manifestation Thus, liquefactioninduced ground surface disruption is expected to be triggered by an earthquake of M = 7 and PGA = g in the vicinity of these two sites. In Figure 4 the map of Larissa is shown, including the sites where SPT borings were conducted. Figure 3. diagram showing the distribution of the data provided by insitu tests in the city of Larissa (solid triangles). Figure 4. Map showing the distribution of boreholes in the city of Larissa and the areas that are clas sified as prone to liquefaction based on the procedure proposed by this study. This result is not in agreement with the surface geologybased evaluation of liquefaction susceptibility at the area of Larissa where fluvial, susceptible to liquefaction, sediments were mapped. However, the low (deep) groundwater table and the dense subsoil layers (SPT 25) are the main parameters that lead to this nonliquefiable behavior and explain the oute of the application of the method proposed by this study. References Bray, ., Sancio, ., Youd, ., Durgunoglu, T., Onalp, A., Cetin, ., Seed, ., Stewart, .,Christensen, C., Baturay, ., Karadayilar, T. amp。 Li, 2021). In this study, a soil layer was characterized as susceptible to liquefaction when the LL The LPI index bines the thickness of the liquefiable layer, the thicknessof the non liquefiable (cap) layer and the value of the factor of safety againstliquefaction. Iwasaki et al. (1982) calibrated the severity of liquefactioninduceddamages with the LPI values using data provided by 87 borings with SPT values in liquefied and nonliquefied sites in Japan. Accord ing to Iwasaki et al.15 (extremely high) to 0 (extremely low), . high is between 5 and 15 and low between 0 and 5. The LPI methodology was modified by Sonmez (2021), by adding a threshold value of instead of 1 for the factor of safety and by introducing two new categories for the lower values: 0 nonliquefiable。Seed et al., 1985 and Youd et al., 2021). The moment magnitude Mw of ChiChi (Taiwan), Kocaeli (Turkey) and Lefkada (Greece) earthquakes was , and meanpeakhorizontal acceleration in the Taiwanese towns of Yanlin, nantou,Wufeng,dachun and Zangbin was g, g, g (Chu et al., 2021) and g, g(Juang, 2021),respectively. The data set for the Kocaeli 1999 earthquakeis fromSPT borings in the towns of Adapazari and Yalova, where the recorded valuesof PGA were equal to maximum ground acceleration recorded in the town of Lefkada (Greece) was g (ITSAK, 2021) while in the villages of Vassiliki and nydri the PGA was estimated as g and g, respectively (Christaras et al., 2021). The liquefaction potential index (LPI) was calculated for each approach was proposed by Iwasaki et al. (1982) to better estimate the potentialliquefaction LPI is calculated u