Version 1
: Received: 28 March 2024 / Approved: 28 March 2024 / Online: 28 March 2024 (10:38:20 CET)
How to cite:
Chircea, A.; Radulian, M.; Enescu, B.; Popa, M.; Dinescu, R. A Long-Term Sequence in Southern Carpathians (Romania): Seismicity Characterization. Preprints2024, 2024031750. https://doi.org/10.20944/preprints202403.1750.v1
Chircea, A.; Radulian, M.; Enescu, B.; Popa, M.; Dinescu, R. A Long-Term Sequence in Southern Carpathians (Romania): Seismicity Characterization. Preprints 2024, 2024031750. https://doi.org/10.20944/preprints202403.1750.v1
Chircea, A.; Radulian, M.; Enescu, B.; Popa, M.; Dinescu, R. A Long-Term Sequence in Southern Carpathians (Romania): Seismicity Characterization. Preprints2024, 2024031750. https://doi.org/10.20944/preprints202403.1750.v1
APA Style
Chircea, A., Radulian, M., Enescu, B., Popa, M., & Dinescu, R. (2024). A Long-Term Sequence in Southern Carpathians (Romania): Seismicity Characterization. Preprints. https://doi.org/10.20944/preprints202403.1750.v1
Chicago/Turabian Style
Chircea, A., Mihaela Popa and Raluca Dinescu. 2024 "A Long-Term Sequence in Southern Carpathians (Romania): Seismicity Characterization" Preprints. https://doi.org/10.20944/preprints202403.1750.v1
Abstract
Two strongly curved areas of the Carpathians in Romania are earthquake-prone: Vrancea - in the South-Eastern Carpathians, and Danubian – in the western edge of the Southern Carpathians. By far the highest seismicity episode in 2023 was recorded in the Southern Carpathians, near Targu Jiu city, of more than 4000 earthquakes. A first ML 5.2 mainshock was recorded on 13 February, followed by a second one, ML 5.7, on 14 February. Our purpose is to provide a first analysis of this sequence in order to explain its extent and unusual development, in time. The possible role of fluids in the middle crust, is discussed in connection with the rather unusual character of the space-time distribution of aftershocks. A large and high-quality dataset is provided by the dense array of seismic stations which has been gradually improved by adding new stations in the epicentral area. The thorough revision of the phase picking and location reveals a few interesting and intriguing features of seismicity that still remain worthy to be further investigated. The database built within this paper provides excellent information not only for Targu Jiu area, but for any other investigation in intra-continental regions characterized by diffuse and sporadic seismic activity.
Environmental and Earth Sciences, Geophysics and Geology
Copyright:
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
