Slowness and azimuth determination for Bucovina array (BURAR) applying multiple signal techniques

Source parameters of the earthquake sequence that occurred close to the BURAR array (Romania) between 24 June and 1 July 2011

“…With the recent enlargement of the national seismic network [Neagoe et al 2009Popa et al 2015] in the Eastern Carpathians area and installation of a high-performance array in the Bucovina region (Grigore et al, 2004;Borleanu et al, 2011;Ghica, 2011) the occurrence of an earthquake sequence in June -July 2011 in the northern part of the Eastern Carpathians (Figure 1), even if it was of moderate size, provided the best data set ever recorded for the region of the northern Moldavia and the possibility to apply advanced techniques to constrain source parameters.…”

Foreword

“…New, permanent array installations in Eastern Europe, their influence on seismic detection and location capabilities of national networks and their calibration are presented by Borleanu et al (2011), Ghica (2011 and Sanina et al (2011). Ghica (2011) investigated the detection capabilities of the 9-element, small aperture seismic Bukovina array (BURAR) installed in 2002 in north-eastern Romania close to the Ukrainian border.…”

“…Furthermore, she compares the array results with the capabilities of the Romanian national network of modern broadband, three-component seismic stations. Borleanu et al (2011) investigated slowness and backazimuth observations at the same small aperture Bukovina array (BURAR). As for all arrays (e.g., Krüger andWeber 1992 or Schweitzer 2001), also the BURAR slowness and backazimuth observations show systematic deviations from theoretically estimated values.…”