Abstract
The analysis of similar earthquakes, such as events in a seismic sequence,
is an effective tool with which to monitor and study source processes
and to understand the mechanical and dynamic states of active fault
systems. We are observing seismicity that is primarily concentrated
in very limited regions along the 1980 Irpinia earthquake fault zone
in Southern Italy, which is a complex system characterised by extensional
stress regime. These zones of weakness produce repeated earthquakes
and swarm-like microearthquake sequences, which are concentrated
in a few specific zones of the fault system. In this study, we focused
on a sequence that occurred along the main fault segment of the 1980
Irpinia earthquake to understand its characteristics and its relation
to the loading-unloading mechanisms of the fault system.
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