Stretto di Messina S.p.A. > FAQ > ISN’T IT DANGEROUS TO BUILD THE BRIDGE IN AN AREA AT HIGH SEISMIC RISK?

ISN’T IT DANGEROUS TO BUILD THE BRIDGE IN AN AREA AT HIGH SEISMIC RISK?

Construction of suspension bridges in seismic areas is a globally established practice. Suspension bridges have been built in regions with a higher seismogenetic potential (i.e., the ability to generate earthquakes) than the Strait of Messina, including Turkey, Japan, and California. Suspension bridges, like the Strait of Messina Bridge, have a natural resilience to seismic activity due to their structural characteristics, which make them less affected by typical earthquake frequencies. Furthermore, from the earliest stages of its design, seismic forces—particularly concerning ground structures—have been extensively analyzed. The bridge is engineered to withstand an earthquake comparable in magnitude to the 1908 Messina earthquake. In the event of such an earthquake, the bridge remains within the elastic range, meaning it does not sustain structural damage, thereby providing safety margins beyond the required design standards. Decades of research have enhanced the understanding of the 1908 Messina earthquake and the primary fault that caused it, classifying it as an extremely rare event with an estimated return period of approximately 2,000 years.