Abstract

According to the U.S. Geological Survey's Earthquake Hazards Program, a seismic swarm is “a localized surge of earthquakes, with no one shock being conspicuously larger than all other shocks of the swarm. They might occur in a variety of geologic environments and are not known to be indicative of any change in the long‐term seismic risk of the region in which they occur” (http://vulcan.wr.usgs.gov/Glossary/Seismicity/description_earthquakes.html).

Highlights

  • According to the U.S Geological Survey’s Earthquake Hazards Program, a seismic swarm is “a localized surge of earthquakes, with no one shock being conspicuously larger than all other shocks of the swarm

  • The project focused on monitoring swarm activity occurring in the Pollino range in Southern Apennines, Italy

  • The Pollino range is located at the northernmost edge of the Calabrian Arc, the last oceanic subduction segment along the Nubian-Eurasian plate

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Summary

Investigating the Origin of Seismic Swarms

According to the U.S Geological Survey’s Earthquake Hazards Program, a seismic swarm is “a localized surge of earthquakes, with no one shock being conspicuously larger than all other shocks of the swarm. They might occur in a variety of geologic environments and are not known to be indicative of any change in the long-term seismic risk of the region in which they occur” (http://vulcan .wr.usgs.gov/Glossary/Seismicity/description _earthquakes.html). To gain insight into the nature of seismic swarms in nonvolcanic areas and to better understand their influence on seismic hazards, the Istituto Nazionale di Geofisica e Vulcanologia (INGV) and the German Research Centre for Geoscience (GFZ) began a combined research project within the framework of the Network of European Research Infrastructures for Earthquake Risk Assessment and Mitigation (NERA; see http://www.nera -eu.org/).

Seismic Swarms in Southern Italy
Identifying Active Faults
Determining Seismic Hazard
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