... event families based on signal‐correlation topology and analyze each event family by measuring differential arrival times of P and S waves. We relocate each family using the Bayesloc method ( Myers et al. , 2007 , 2009 ) and find that, after relocation, event families are tightly clustered spatially...

... of the NNSS during 1993. We apply the Bayesloc multiple‐event location algorithm ( Myers et al. , 2007 , 2009 ) to determine the best possible locations and depths for these events. Past nuclear tests in the nearby Yucca Flat on the NNSS are relocated with the same method to provide insight into the accuracy...

..., and absolute location must be constrained using additional information, such as constraining the location of one event or using picks to locate the centroid of the event cluster ( Jordan and Sverdrup, 1981 ). We adapted the Bayesloc method ( Myers et al. , 2007 , 2009 ) to simultaneously determine absolute...

... predictions, but being a multiple‐event‐location method, it is able to derive path corrcetions along the repeating ray paths; thus it effectively finds the best‐fitting empirical 3D travel‐time estimates. Bayesloc also shallows the events with depths >35 km, as indicated by the much smaller number...

... to be able to resolve these sequences. Full‐waveform cluster analysis, using correlation methods to measure both signal similarity and enhanced time‐delay estimates, is likely to provide improved local scale resolution of the seismicity in both sequences. The feature of Bayesloc that appears to be most...

... of earthquakes and associated locations. The latter are then calibrated through the implementation of the hypocentroidal decomposition method and relocated using the Bayesloc relocation technique. We additionally perform a finite‐fault slip analysis of the mainshock using Interferometric Synthetic Aperture Radar...

...    km 2 maximum on‐site inspection search area specified by the Comprehensive Nuclear Test‐Ban Treaty. In this section, we will describe the basic methodology behind the Bayesian Hierarchical Seismic Event Locator (Bayesloc) location method and regional envelope yield method, before combining...

... seismology and satellite data ( Fisk, 2002 ; Waldhauser et al. , 2004 ) and modern, contextual, location methods (e.g., Richards et al. , 2006 ; Myers et al. , 2007 ) exploiting ground truth (GT) locations should validate or improve on conventional network location estimates. Similarly, differences...

... map A in relation to the Bitdal water power reservoir and tectonic structures in the area. C: cross‐section view of hypocenters. Red line indicates the dip direction of the plane fit to the events. (b) D: location solutions from hypocenter program (explosions shown red in bottom right). E: Bayesloc...

... 74.58 55.52 2.4 This article (B) 2020/08/23 03:26:21.7 73.56 54.43 3.1 This article (C) The times and locations are based on the Bayesloc joint probabilistic location displayed in this article. The letters A, B, and C are used to label the events marked on the map in Figure  1a...

... changes in station metadata parameters over time. In the second step, we jointly relocated a list of selected seismic events, using the Bayesian hierarchical location software package (BayesLoc) of Myers et al. (2007) that performs joint relocation of multiple events. We observed striking dissimilarities...

... are, until now, mostly done using specific location methods (e.g., Engen et al. , 2003 ; Gibbons et al. , 2017 ). Earthquake monitoring experiments, such as the INTAROS OBSs deployment along the AMOR, can, in addition, contribute considerably to improve seismic catalogs at the regional scale. In addition...

... dbevproc tool, which calls the mlrichter algorithm. This method, as described by Richter (1935) , uses the largest instrument‐response‐corrected S ‐wave amplitude on the horizontal components and scales the value based on distance to find the magnitude. We calculated focal mechanisms using...

... of the common seismic location methods that solve a system of linear equations, Bayesloc employs a Bayesian hierarchical statistical model. In this study, 12 different combinations of stations were examined via Bayesloc. In all cases, the event location and origin time are unconstrained, but the depth...

... to travel‐time predictions. Bayesloc is a hierarchical Bayesian formulation, allowing each parameter to be treated as a stochastic variable to which a priori constraint may be enforced. Bayesloc uses a Markov chain Monte Carlo ( MCMC ) method to draw samples from the joint probability distribution for all...

.... Using double‐difference techniques, we find that the two largest events are located within 1 km of the main event. We present a Bayesloc probabilistic multiple event location including the 30 June event and all additional seismic events in the region well recorded on the regional networks. The Bayesloc...

... of earthquake rupturing in the fault system because earthquake‐source directivity is one of the key factors that affects ground shaking. For this, we adopt the method to constrain the rupture directivity proposed by Qin et al. (2014) and He et al. (2015) , which is suitable for applying to a region where...

... a larger event arrive at a similar time (26 August 2008 explosion). Hydroacoustic signals are also recorded at the H10 IMS hydrophone station near Ascension Island for all of the 2008 and 2016 explosions. Data from the H10 hydrophone station were not available in 2001. An alternative method...

... without continuous noise signals over time (Fig.  2b–d ). Next, we applied the double‐difference relocation method ( Waldhauser and Ellsworth, 2000 ), known as hypoDD , to five closely located events. This method is used to enhance location precision and can be quite useful for retrieving any...

...  2a shows the rank‐2 template created for station MDJ. The template starts at approximately the Pg arrival time, and is 95 s long. Each dimension has an empirical TBP of about 12 with 994 degrees of freedom (DFs) calculated by the method of Leith (1973) . The stream sample rate is 10 Hz...