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SEISAN

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Journal Article
Published: 03 October 2018
Seismological Research Letters (2018) 89 (6): 2386-2391.
...Terje Utheim; Jens Havskov; Mustafa Çomoğlu ABSTRACT The SeisComP3 (SC3) real‐time software is widely used in the seismological community. It provides automatic hypocenter and magnitude solutions, but with limited manual processing capabilities. The SEISAN software is also well known and provides...
FIGURES
Journal Article
Published: 01 May 2014
Seismological Research Letters (2014) 85 (3): 735-742.
...T. Utheim; J. Havskov; M. Ozyazicioglu; J. Rodriguez; E. Talavera In this configuration, RTQUAKE runs on the same computer as the local SeedLink server receiving data and SEISAN. Data from different SeedLink servers and stations are fed into the local SeedLink server, and RTQUAKE connects...
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Journal Article
Published: 01 September 1999
Seismological Research Letters (1999) 70 (5): 532-534.
... goal of SeisAn is to organize data from all kinds of seismic stations into a simple database and to provide most of the tools needed for routine processing. The SeisAn database is a way of organizing data by using the directory and file structure, and is not a relational data system with general...
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(a) Data processing flow from raw data to <b>SEISAN</b> software. (b) Example of s...
Published: 17 October 2018
Figure 2. (a) Data processing flow from raw data to SEISAN software. (b) Example of seismic waveforms recorded in a 20‐min window in the temporary seismic network.
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The focal mechanism solutions obtained using the <b>SEISAN</b> algorithms FOCMEC, ...
Published: 01 December 2015
Figure 13 The focal mechanism solutions obtained using the SEISAN algorithms FOCMEC, PINV and HASH (Havskov and Ottemöller, 2010) for the 18 November 2013 earthquake, and FOCMEC for the 2 December 2013 earthquake.
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Locations using the <b>SEISAN</b> software compared with the  ISS  location.
Published: 01 April 2015
Figure 6. Locations using the SEISAN software compared with the ISS location.
Journal Article
Published: 14 February 2018
Seismological Research Letters (2018) 89 (2A): 392-398.
... with higher station density in central Costa Rica. Also, earthquake locations were improved by integrating routines from the SeisComP, EarthWorm, and SEISAN software packages. Additionally, several tools for disseminating earthquake information were developed, for example, an application for smartphones...
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Journal Article
Published: 01 October 2013
Bulletin of the Seismological Society of America (2013) 103 (5): 2752-2766.
... ( CRSEIZE ) and along central Costa Rica and Nicaragua as part of the German SFB 574 program. The five arrays, composed of different sensor types (one‐ and three‐component land and ocean bottom seismometers and hydrophones), were archived using different software packages (Antelope and SEISAN) and were...
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Regression analysis for the  Q -factor estimation from the direct  S -wave ...
Published: 01 April 2002
Figure 4. Regression analysis for the Q -factor estimation from the direct S -wave envelope at Chamoli using SEISAN software.
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Comparison of the observed seismograms (red line) with the synthetic seismo...
Published: 01 December 2009
Figure 5. Comparison of the observed seismograms (red line) with the synthetic seismograms (blue line) using SEISAN algorithm ( Havskov and Ottemöller, 2008 ) at depths labeled next to each set of traces
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Comparison between  M  L  predicted by equation  (11)  (open circles) and e...
Published: 11 March 2015
Figure 5. Comparison between M L predicted by equation  (11) (open circles) and equation  (12) (black dots) and with the estimations of M L obtained with SeisAn using the standard Richter scale. The gray line is a reference line with unitary slope.
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Typical RTQUAKE configuration using input data from one or more SeedLink se...
Published: 01 May 2014
Figure 4. Typical RTQUAKE configuration using input data from one or more SeedLink servers. The data enters a local SeedLink server before being processed by RTQUAKE to have direct access from SEISAN to the archive with continuous data. For the names of the modules, see text.
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The focal mechanism solution of the 15th March 2008 event obtained global d...
Published: 01 December 2009
Figure 4. The focal mechanism solution of the 15th March 2008 event obtained global data using SEISAN algorithm ( Havskov and Ottemöller, 2008 ). The triangles shows seismic stations which has negative onset polarity where as the circles represents seismic stations with positive polarity
Journal Article
Published: 01 January 2001
Seismological Research Letters (2001) 72 (1): 77-79.
...T. Utheim; J. Havskov; Y. Natvik © 2001 by the Seismological Society of America 2001 Almost two years ago the Electronic Seismologist (ES) hosted a column by Havskov and Ottemöller ( SRL 70:5) on the SeisAn earthquake analysis system. Since then the ES has received a number of e...
Journal Article
Published: 01 December 2009
South African Journal of Geology (2009) 112 (3-4): 381-386.
...Figure 5. Comparison of the observed seismograms (red line) with the synthetic seismograms (blue line) using SEISAN algorithm ( Havskov and Ottemöller, 2008 ) at depths labeled next to each set of traces ...
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Journal Article
Published: 01 September 1995
Seismological Research Letters (1995) 66 (5): 26-36.
... . Havskov , J. and T. Utheim ( 1992 ). SEISLOG and SEISAN: A complete system for seismic data acquisition and analysis . Cahier du Centre Europeen de Geodynamique et de Seismologie 5 , 67 – 74 . Havskov , J. and Lindholm , C. ( 1994 ). The SEISAN earthquake analysis software...
Journal Article
Published: 06 November 2018
Bulletin of the Seismological Society of America (2019) 109 (1): 34-42.
... an M L . The arrival times of the P and S phases were picked using the earthquake analysis software SEISAN ( Havskov and Ottemolle, 2003 ), assigning a time uncertainty to each phase: 0.05–0.30 s for P and 0.1–1.0 s for S arrivals, for events inside the network. Since 2006, ISR has recorded...
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Journal Article
Published: 01 May 2010
Seismological Research Letters (2010) 81 (3): 530-533.
... for accessing archived waveform data, see Hanka and Kind 1994 ) or a SeisHub database ( Barsch 2009 ). Just recently, modules were added to read SEISAN data files ( Havskov and Ottemöller 1999 ) and to retrieve data with the IRIS/FISSURES data handling interface (DHI) protocol ( Malone 1997 ). Python...
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Journal Article
Published: 01 March 2000
Seismological Research Letters (2000) 71 (2): 180.
... recommends its RAID Server Model RS-10. Conversion to popular formats, such as SeisAn, PC-SUDS, and SAC, is provided. A logfile with the progress report and number of files copied or converted is also automatically produced. The Model DS-24 is the latest generation of high-end digital data...
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Journal Article
Published: 01 February 1995
Bulletin of the Seismological Society of America (1995) 85 (1): 354-360.
... . Havskov J. Utheim T. (1992) . SEISLOG and SEISAN: a Complete System for Seismic Data Acquisition and Analysis , 5 , Cahiers du Centre Europeen de Geodynamique et de Seismologie , Luxembourg , 67 - 74 . Kebebe F. (1989) . Seismotectonic studies of the east African rift...