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1930 Irpinia earthquake
The 1930 Irpinia earthquake occurred at 00:08 UTC on 23 July, chiefly in an area known as Irpinia. It had a magnitude of 6.6 and caused 1,404 deaths. The epicenter was near to the boundaries between the regions of Basilicata, Apulia, and Campania.
==Tectonic setting==
The central and southern part of the Apennines has been characterised by extensional tectonics since the Pliocene epoch (i.e. about the last 5 million years), with most of the active faults being normal in type and NW-SE trending. The extension is due to the back-arc basin in the Tyrrhenian Sea opening faster than the African Plate is colliding with the Eurasian Plate. To the northeast of the Apennine chain, the foreland is in contrast affected by W-E trending strike-slip to oblique-slip faults.
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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