Three papers published recently caught my eyes. First, Andrej Gosar investigated the earthquake environmental effects (EEEs) of the 12 April 1998 Mw =5.6 Krn Mountains earthquake, Slovenia. The quake measured VII-VIII on the EMS-98 scale, and Andrej found that the intensities reached the same values on the ESI2007 scale. He reports that the intensity distributions for both scales are comparable, but show some differences due to the sparsely populated epicentral area. The research concentrated on rockfalls for EEE determination. It’s a nice example that also moderate events can be characterized using the ESI2007 scale.
Gosar, A., 2012: Application of Environmental Seismic Intensity scale (ESI 2007) to Krn Mountains 1998 Mw = 5.6 earthquake (NW Slovenia) with emphasis on rockfalls, Nat. Hazards Earth Syst. Sci., 12, 1659-1670, doi:10.5194/nhess-12-1659-2012 (open access!)
Matteo Vacchi et al. worked on sea-level variations and neotectonics on Lesvos Island, Greece. They used morphological, biological and sedimentary records to reconstruct relative sea-level changes and to identify variations in the tectonic regime. Matteo and his team were also able to assess the paleoseismicity of the study area. Their work provides evidence of a differential late Quaternary evolution of Lesvos Island, since some parts appear to be fault controlled while others don’t show coastal uplift.
Vacchi, M., Rovere, A., Zouros, N., Desruelles, S., Caron, V., Firpo, M., 2012: Spatial distribution of sea-level markers on Lesvos Island (NE Aegean Sea): Evidence of differential relative sea-level changes and the neotectonic implications. Geomorphology, 159-160, 50-62.
In a second paper, Matteo and his colleagues investigated boulder deposits on Lesvos Island. Hydrodynamics are sometimes difficult to be modelled due to the very complex mechanisms. Therefore, geomorphological and seismotectonical data were incorporated in this study. Using additional historical information like tsunami catalogues, historical photos and interviews, the authors conclude that the boulders might have been deposited by the 1949 tsunami (Ms6.7 Chios-Karaburum EQ) or the wave following the 1956 Amorgos Island event (Ms7.8).
Vacchi, M., Rovere, A., Zouros, N., Firpo, M., 2012: Assessing enigmatic boulder deposits in NE Aegean Sea: importance of historical sources as tool to support hydrodynamic equations, Nat. Hazards Earth Syst. Sci., 12, 1109-1118, doi:10.5194/nhess-12-1109-2012. (open access!)
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