DOI: 10.5281/zenodo.17068652
title: Input files for Bayesloc joint probabilistic location of seismic events on and around Novaya Zemlya

description: Input files for Bayesloc joint probabilistic location of seismic eventson and around Novaya Zemlya

The files for the probabilistic joint event location in(Kvaerna et al., 2023) were not published with the paper.

This repo features the input files needed for the Bayesloc programhttps://gs.llnl.gov/nuclear-threat-reduction/nuclear-explosion-monitoring/bayesloc

The following files are present:

table.txt        - an ASCII summary of the events listed.arrival.dat      - the phase arrival times in the Bayesloc format.station.dat      - the locations of seismic stations in the Bayesloc format.origin_prior.dat - a file specifying prior constraints on event location for Bayesloc.bayesloc.cfg     - the Bayesloc configuration file

NZ2010.P         - Travel time table for teleseismic P from NZ2010 model.NZ2010.P1        - Travel time table for first arriving regional P-wave from NZ2010 model.NZ2010.PcP       - Travel time table for teleseismic PcP from NZ2010 model.NZ2010.Pdif      - Travel time table for teleseismic Pdif from NZ2010 model.NZ2010.Pn        - Travel time table for regional Pn from NZ2010 model.NZ2010.pP        - Travel time table for teleseismic pP from NZ2010 model.NZ2010.S         - Travel time table for teleseismic S from NZ2010 model.NZ2010.S1        - Travel time table for first arriving regional S-wave from NZ2010 model.NZ2010.Sn        - Travel time table for regional Sn from NZ2010 model.

The calculation is executed by typing

bayesloc bayesloc.cfg

(where it is assumed that you have compiled the bayesloc programand have it in your path).

The NZ2010 travel-time model was published inhttps://doi.org/10.1785/0120150302(Gibbons et al., 1986).

For quick reference, the events are listed here:

 

BayeslocID  day   origin_time                lat    lon    mag  type

000000001   Sat   1973-10-27T06:59:59.1200   70.78  54.03  6.9  nuclear test000000002   Sat   1974-11-02T04:59:59.3970   70.81  53.91  5.5  nuclear test000000003   Sat   1975-10-18T08:59:57.3610   70.81  53.75  4.0  nuclear test000000004   Thu   1983-08-18T16:10:00.0160   73.38  54.95  4.0  nuclear test000000005   Sun   1983-09-25T13:09:59.3610   73.35  54.48  4.0  nuclear test000000006   Thu   1984-10-25T06:29:59.2350   73.35  54.99  4.0  nuclear test000000007   Fri   1986-08-01T13:56:39.7700   72.90  56.94  4.5  unknown000000008   Sun   1987-08-02T02:00:01.3020   73.32  54.60  4.0  nuclear test000000009   Sat   1988-05-07T22:49:59.5010   73.31  54.55  4.0  nuclear test000000010   Sun   1988-12-04T05:19:54.5290   73.36  55.00  4.0  nuclear test000000011   Wed   1990-10-24T14:57:59.8230   73.33  54.75  5.5  nuclear test000000012   Thu   1992-12-31T09:29:24.2990   73.51  55.61  2.7  unknown000000013   Thu   1995-02-23T21:50:01.5810   71.63  55.16  2.7  unknown000000014   Tue   1995-06-13T19:22:39.7450   75.11  56.23  3.5  unknown000000015   Sat   1996-01-13T17:17:21.2190   74.99  57.48  2.6  unknown000000016   Sat   1997-08-16T02:11:02.4450   72.49  58.08  3.5  unknown000000017   Sat   2002-02-23T01:21:11.9830   73.98  57.82  2.9  unknown000000018   Sun   2002-11-10T11:04:42.4300   70.54  48.68  2.0  unknown000000019   Wed   2003-10-08T23:07:16.0990   75.70  65.09  2.5  unknown000000020   Sun   2006-03-05T23:17:31.7970   76.59  66.39  2.6  unknown000000021   Tue   2006-03-14T20:56:57.5620   74.92  55.33  2.2  unknown000000022   Thu   2006-03-30T10:46:02.2260   70.63  52.18  2.3  unknown000000023   Tue   2007-06-26T03:19:17.7050   73.30  54.46  2.7  unknown000000024   Wed   2009-11-11T04:18:20.5510   71.43  47.24  3.2  unknown000000025   Mon   2010-10-11T22:48:30.4380   76.32  64.72  4.5  unknown000000026   Tue   2014-03-04T04:42:31.6340   74.49  58.14  2.5  unknown000000027   Sat   2018-01-27T02:12:57.2630   73.75  55.15  3.0  unknown000000028   Mon   2020-02-17T17:06:23.5170   74.56  55.50  3.0  unknown000000029   Sun   2020-08-23T03:26:21.3100   73.55  54.62  3.1  unknown000000030   Mon   2019-01-28T20:45:04.6020   74.62  59.75  3.0  unknown

Most events labelled unknown are assumed to be earthquakes.Some, such as 000000025, are earthquakes without a shadow of a doubtdue to, e.g. depth phases. Some of the smaller events are inconclusivewith the available seismic data.

Steven J. Gibbons

 

References

Kværna, T., Dando, B. D. E., and Gibbons, S. J. (2023).Seismic Monitoring of Novaya Zemlya: Progress, Challenges, and Prospects,Seismological Research Letters, 94 (3): 1495–1508.https://doi.org/10.1785/0220220338

Gibbons, S. J., Antonovskaya, G., Asming, V., Konechnaya, Y. V.,Kremenetskaya, E., Kværna, T. Schweitzer, J., Vaganova, N. V. (2016).The 11 October 2010 Novaya Zemlya Earthquake: Implications for VelocityModels and Regional Event Location,Bulletin of the Seismological Society of America, 106, 1470-1481.https://doi.org/10.1785/0120150302