# Ionian Plate Fragmentation Beneath Southern Calabria New geological data reveals the Ionian plate is fracturing under Calabria and Sicily. - **Source:** [Rai News](https://www.rainews.it) - **Published:** 2026-11-06 - **Topic:** [science](https://brifing.si/c/science) - **Original article:** - **On Brifing:** https://brifing.si/s/be1eaa28-6bac-4be9-ac42-e004f8d28da5 ## Tectonic Plate Fragmentation New research indicates the Ionian plate, a segment of the African tectonic plate, is fracturing directly beneath southern Calabria. This discovery, led by the University of Oregon with Italian academic partners, challenges existing geological models. The study provides critical insights into the complex tectonic processes currently shaping this highly active Mediterranean region. ## Collaborative Scientific Effort The study involved international collaboration between the University of Oregon and several Italian institutions, including the University of Basilicata, the National Institute of Geophysics and Volcanology in Palermo, and the University of Bologna. Their findings were published in the journal Communications Earth Environment, marking a significant advancement in regional geological understanding. ## Seismic Risk Assessment Understanding these deep-seated processes is essential for improving seismic risk evaluations in southern Italy. This region has historically experienced some of the most devastating earthquakes in Italian history. By mapping the fragmentation of the Ionian plate, scientists hope to better predict future seismic activity and mitigate potential damage in vulnerable areas. ## Strait of Messina Complexity The fault system beneath the Strait of Messina and the Ionian Sea represents one of Europe's most geologically intricate zones. Here, the Eurasian and African plates interact, with the latter subducting beneath the former. This ongoing tectonic collision drives the slow separation of Calabria from Sicily at a rate of 0.5 to 0.8 millimeters annually. ## Marine Terrace Analysis Researchers led by Rebecca Dorsey examined sand samples from Calabrian marine terraces. These ancient coastlines have been uplifted over hundreds of thousands of years, reaching heights of up to 1,000 meters above sea level. The analysis of these formations provides a physical record of the tectonic forces acting upon the region's crustal structure. ## Rapid Uplift Rates Data reveals that these marine terraces are rising five to ten times faster than previously estimated by geologists. Consequently, these formations are significantly younger than earlier models suggested. This discrepancy forces a re-evaluation of the mechanisms driving land elevation, pointing toward the ongoing laceration of the Ionian plate as the primary cause. ## Challenging Existing Models The findings directly challenge current scientific explanations regarding the rapid uplift of Calabrian marine terraces. Instead of traditional subduction models alone, the evidence suggests that the physical tearing of the Ionian plate beneath the crust is a major driver. This alternative theory provides a more accurate framework for interpreting the observed geological data. ## Future Geological Implications This study highlights the necessity of continuous monitoring in tectonically active zones. As the Ionian plate continues to fracture, the resulting stress redistribution could influence future seismic events. Researchers must now integrate these findings into broader tectonic models to better understand the long-term evolution of the Mediterranean's complex crustal architecture. ## Sources covering this story - https://www.rainews.it/articoli/2026/11/la-placca-ionica-si-frantuma-sotto-la-calabria-meridionale-e-impatta-la-sicilia-8f3c6679-b189-4d7a-8a72-fb4209c7631c.html — --- _Summary written by Brifing from the original reporting. Copyright in the original article belongs to its publisher; read the full piece at the link above._