Earthquake Source Properties of a Lower Crust Sequence and Associated Seismicity Perturbation in the SE Carpathians, Romania, Collisional Setting
, Emilia Popescu 1, Mircea Radulian 1,3 and Ioan Munteanu 4Round 1
Reviewer 1 Report
In this manuscript,authors determine source parameters of 21 earthquakes that occurred during the 2014 M?r??e?ti sequence as well as for several events that have occurred at higher distances or delayed in time,considered as having been triggered by the aforementioned seismic sequence. They apply empirical Green’s function (EGF) deconvolution and spectral ratios (SR) techniques,and authors determine the fault plane solutions for a part of these events and investigate the evolution of seismic activity in the region in order to draw an interpretation in connection with the tectonic structures highlighted by the previous studies. This manuscript has some innovation, but the introduction of previous studies is not enough.Some of the research addressing these issues should be acknowledged, some recommended references, among many others are:[1]Popescu, Emilia; Placinta, Anica Otilia;Radulian, Mircea; et al.Source parameters of the earthquake sequence that occurred close
to the BURAR array (Romania) between 24 June and 1 July 2011. ANNALS OF GEOPHYSICS, 2017,60(2),https://doi.org/10.4401/ag-7285.[2]Enescu, D; Popescu, E; Radulian, M. Source characteristics of the Sinaia (Romania) sequence of May June 1993.TECTONOPHYSICS. 1996,261(1-3),p.39-49.https://doi.org/10.1016/0040-1951(96)00055-8.and [3]https://doi.org/10.1016/j.istruc.2020.12.089.and [4]https://doi.org/10.3311/PPci.15276.
To summarise, this manuscript has done some innovative work on the basis of previous research, it is suggested that the manuscript can be accepted and published after minor revision.
Author Response
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Author Response.docx
Reviewer 2 Report
Very interesting work and research. There is always problem with definition of source properties which are important input data (and often are assumed) for the seismic hazard assessment.
Detailed seismological research was conducted but maybe geological and geophysical part can be improved.
In caption of Figure 9. an explaination of dashed lines should be added. Also, purple line looks quite strange, regarding purple diamonds.
Is it possible to explain FPS solutions from geological aspect? There are some oposit beach-balls at almost the same location. If this is a geologically very complex region, as stated, at least some possible explaination would be nice to see. What is actually the reason of such complexity?
It would be interesting to see and to discuss the SSW-NNE profile, and to see 3D distribution od hypocenters together with tectonic/geological features.
Also, minor grammatical corrections of the English language should be done and equations and variables in text should be re-edited.
Author Response
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Author Response File: Author Response.docx
