Short-Term Seismic Activity in Vrancea. Inter-Event Time Distributions

Bogdan Felix Apostol, Liviu Cristian Cune


Short-term seismic activity in Vrancea is analyzed by means of the inter-event magnitude distributions (distributions of the next seismic event following a conditional seismic event). This seismic activity in Vrancea is fitted by Omori-type time-power laws, with possible correlations over a range of 20−25 days, for magnitudes M < 4−5. Such temporal patterns can be employed in seismic hazard and risk estimation, providing the data set is statistically significant.


inter-event time distributions; next-earthquake time-magnitude distributions; Omori law

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Published by INGV, Istituto Nazionale di Geofisica e Vulcanologia - ISSN: 2037-416X