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SEISAN Earthquake Analysis Software

SEISAN Earthquake Analysis Software. Lars Ottemöller and Jens Havskov (University of Bergen) Peter Voss (GEUS). Background. Development started in the late 80s Large number of software contributors Steady improvements, now Version 9.1 Basics unchanged

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SEISAN Earthquake Analysis Software

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  1. SEISANEarthquake Analysis Software Lars Ottemöller and Jens Havskov (University of Bergen) Peter Voss (GEUS)

  2. Background • Development started in the late 80s • Large number of software contributors • Steady improvements, now Version 9.1 • Basics unchanged • Supported operating systems: Solaris, Windows, Linux and MacOS

  3. Who uses SEISAN • Geographically widely used(Norway, UK, France, Spain, ..., India, Iran, Philippines, ..., Central and South America, South and East Africa, ...) • 15% of data sent to ISC in SEISAN format • National and regional seismic networks • Volcano observatories • Researchers

  4. What can you do with SEISAN • Import/Export data • Store data (waveform and parametric) • Observatory routine: • Analyse earthquake data (signal processing, phase identification, ...) • Compute earthquake parameters (location, magnitude, ...) • Fault plane solution • Seismicity maps • Produce bulletin and catalogue search • Research platform, several additional data processing tools

  5. Philosophy • Open source • Open system • Non-commercial • Multi-platform • Integrate essential tools and data storage into one package • Provide documentation • Provide support • Provide training

  6. SEISAN Help • Manual (PDF and HTML) • Training document • Seisan Webpagehttp://www.uib.no/rg/geodyn/artikler/2010/02/software • Mailing list: seisan@geo.uib.no • Authors: jens.havskov@geo.uib.nolars.ottemoller@geo.uib.nopv@geus.dk

  7. Other software • SAC(http://www.iris.edu/manuals/sac/index.htm) • Geotool (CTBTO) • Seismic Handler (http://www.szgrf.bgr.de/sh-doc/index.html) • Giant/Pitsa (http://www.geo.uni-potsdam.de/forschung/software/giant.html) • … • Link on Orefus and IRIS

  8. Data Types • Waveform data • Calibration data • Parametric data

  9. Waveform data • Created by digitising analogue output from seismometer and time stamping • Consists of amplitude and time • Translates into ground motion using instrument response information • Written out by data acquisition system • Waveform formats understood directly by SEISAN: SEISAN, SEED, miniSEED, SAC, GSE

  10. Waveform data files • Single or multiple channels • Data identifier: Station code, Channel code, Network code, Location code • Timing information • Data values • Used for: Recording, analysis, archival, data exchange, …

  11. Waveform data into SEISAN • Conversion of data created by data logger • Conversion of data provided by another agency (IRIS, ORFEUS, ...) • Data written out by near real-time processing system (Earthworm, Seislog, SeisComP, ...) • Automated data collection: SEISNET

  12. Waveform ConversionExamples • Rdseed: SEED -> miniSEED SEED -> SAC … • Wavetool: (mini)SEED <-> SEISAN SAC <-> SEISAN GSE <-> SEISAN • …

  13. Parametric data • Derived from waveform data • Observations: • Arrival times and residuals • Amplitudes • Polarities • Computed: • Hypocenter location • Magnitudes • Fault plane solution

  14. SEISAN Directory Structure C:\seismo SEISAN-TOP INF CAL WAV REA DAT WOR BER TEST BER Workspace Response Files Documentation Parameter Files 2005 2005 2006 03 03 02 ... 02 ... 01 01 Parametric files Waveform files

  15. Main SEISAN programs • EEV: Database tool • MULPLT: Seismogram analysis • HYPOCENTER: Location of local, regional and teleseismic earthquakes • EPIMAP: Seismicity maps • FOCMEC: Fault plane solution • SELECT: Extract parametric data

  16. EEV

  17. Main SEISAN programs • EEV: Database tool • MULPLT: Seismogram analysis • HYPOCENTER: Location of local, regional and teleseismic earthquakes • EPIMAP: Seismicity maps • FOCMEC: Fault plane solution • SELECT: Extract parametric data

  18. MULPLT

  19. MULPLT

  20. MULPLT

  21. Main SEISAN programs • EEV: Database tool • MULPLT: Seismogram analysis • HYPOCENTER: Location of local, regional and teleseismic earthquakes • EPIMAP: Seismicity maps • FOCMEC: Fault plane solution • SELECT: Extract parametric data

  22. HYPOCENTER MAGNITUDES All main magnitude scales can be used: • Local magnitude Ml • Coda magnitude Mc • Body wave magnitide mb, mB • Surface wave magnitude Ms, MS • Moment magnitude Mw

  23. HYPOCENTER

  24. Main SEISAN programs • EEV: Database tool • MULPLT: Seismogram analysis • HYPOCENTER: Location of local, regional and teleseismic earthquakes • EPIMAP: Seismicity maps • FOCMEC: Fault plane solution • SELECT: Extract parametric data

  25. EPIMAP

  26. Main SEISAN programs • EEV: Database tool • MULPLT: Seismogram analysis • HYPOCENTER: Location of local, regional and teleseismic earthquakes • EPIMAP: Seismicity maps • FOCMEC: Fault plane solution • SELECT: Extract parametric data

  27. FOCMEC

  28. Main SEISAN programs • EEV: Database tool • MULPLT: Seismogram analysis • HYPOCENTER: Location of local, regional and teleseismic earthquakes • EPIMAP: Seismicity maps • FOCMEC: Fault plane solution • SELECT: Extract parametric data

  29. SELECT

  30. Format ExamplesGSE Waveform DATA_TYPE WAVEFORM GSE2.0 WID2 2007/06/04 17:34:54.000 ESK HHZ INT 40000 100.000000 0.10E+01 1.000 -1.0 0.0 STA2 55.31650 -3.20517 0.261 0.000 DAT2 -986 -988 -990 -987 -992 -984 -982 -992 -984 ...

  31. Format ExamplesGSE Calibration DATA_TYPE RESPONSE GSE2.0 CAL2 ESK HHZ CMG-3 0.13E+00 1. 100.00000 2005/06/01 16:00 PAZ2 1 V 1.12701317E+03 5 3 Laplace transform -0.148031845+00 0.148031845+00 -0.148031845+00 -0.148031845+00 -0.11309730E+04 0.00000000E+00 -0.10053090E+04 0.00000000E+00 -0.50265500E+03 0.00000000E+00 0.00000000E+00 0.00000000E+00 0.00000000E+00 0.00000000E+00 0.00000000E+00 0.00000000E+00 DIG2 2 6.29326620E+05 100.00000 Reftek

  32. Format ExamplesGSE Phases EVENT 00000001 Date Time Latitude Longitude Depth Ndef Nsta Gap Mag1 N Mag2 N Mag3 N Author ID rms OT_Error Smajor Sminor Az Err mdist Mdist Err Err Err Quality 2007/04/28 07:18:11.3 51.0730 1.1670 0.0 156 124 65 ML 4.3 41 00000001 0.70 +- 2.32 0.0 0.0 0 +- 5.6 0.04 11.85 +-0.2 m i se Sta Dist EvAz Phase Date Time TRes Azim AzRes Slow SRes Def SNR Amp Per Mag1 Mag2 Arr ID TFO1 9.18 338.0 m P 2007/04/28 07:18:12.6 0.1 T 9.2 00000001 TFO1 9.18 338.0 m S 2007/04/28 07:18:13.8 0.3 T 9.2 00000002 MENF 9.18 129.0 m P 2007/04/28 07:18:27.2 0.2 T 3.8 00000003 MENF 9.18 129.0 m S 2007/04/28 07:18:38.7 0.3 T 3.8 00000004 APA 9.18 9.0 mc P 2007/04/28 07:18:34.2 -0.2 T 3.5 00000005 SKP 9.18 298.0 m P 2007/04/28 07:18:37.2 0.3 T 3.5 00000006

  33. Format ExamplesSEISAN Waveform 21107 155 6 4 17 29 59.000 1202.000 CWF HH Z 0.99 1201.01 CWF HH N 0.99 1201.01 CWF HH E 0.99 1201.01 EDI HH Z 0.99 1201.01 EDI HH N 0.99 1201.01 EDI HH E 0.99 1201.01 GAL1HH Z 0.99 1201.01 GAL1HH N 0.99 1201.01 GAL1HH E 0.99 1201.01 HPK HH Z 0.99 1201.01 HPK HH N 0.99 1201.01 HPK HH E 0.99 1201.01 KPL HH Z 0.99 1201.01 KPL HH N 0.99 1201.01 KPL HH E 0.99 1201.01 LRW HH Z 0.99 1201.01 LRW HH N 0.99 1201.01 LRW HH E 0.99 1201.01 PGB1HH Z 0.99 1201.01 PGB1HH N 0.00 1202.00 PGB1HH E 0.00 1202.00 CWF HH Z107 155 6 4 17 29 59.990 100.00 120102 4 … -4231 -4220 -4223 -4227 -4229 -4218 -4206 -4200 -4198 -4201 -4202 -4217 -4202 -4205 -4217 -4208 -4221 -4223 -4216 -4233 -4236 -4231 -4239 -4238 -4230 -4216 -4231 -4235 -4217 -4207 -4198 -4195 -4200 -4192 -4183 -4178 -4178 -4183 -4172 -4178 -4179 -4185 -4195 -4198 -4197 -4186 -4196 -4192 -4196

  34. Format ExamplesSEISAN Calibration ESK S Z 97 044 2 13 17 30 0.000 55.3167 -3.2050 263 Mk3;500V/m/s;fmA/M(5)40dB;Flt.002&40Hz@-1&6p;VME A/D2048c/V RMY 13/02/97 1.000 0.700 499.251 40.0002048.000.459E+09 0.002 -1.000 40.000 6.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 .100 .200 .300 .400 .500 .600 .700 .800 .900 1.00 .140E-02.112E-01.377E-01.888E-01.171 .286 .435 .609 .801 1.00 -1.701 -1.864 -2.026 -2.192 -2.366 -2.545 -2.727 -2.905 -3.077 3.047 1.10 1.20 1.60 2.00 2.40 3.00 4.00 5.00 6.00 8.00 1.20 1.39 2.10 2.73 3.32 4.18 5.60 7.00 8.40 11.2 2.902 2.771 2.380 2.129 1.954 1.765 1.542 1.371 1.226 0.970 10.0 12.0 14.0 17.0 20.0 23.0 26.0 30.0 40.0 50.0 14.0 16.8 19.6 23.8 28.0 32.2 36.3 41.4 39.6 17.8 0.738 0.516 0.297 -0.028 -0.358 -0.697 -1.052 -1.565 -3.107 1.917

  35. Format ExamplesSEISAN Phases 2007 8 1 0413 43.84L 56.463 -6.531 12.2 BGS 8 0.4 1.4LBGS 1 GAP=270 1.08 6.3 29.0 12.4 0.1431E+03 -0.1777E+03 -0.1814E+02E XNEAR 150.0 XFAR 250.0 SDEP 10.0 3 2007-08-01-0414-21S.MOQ___014 6 2007-08-01-0412-50S.KYL___011 6 ACTION:REE 07-08-02 11:53 OP:gdf STATUS: ID:20070801041441 I STAT SP IPHASW D HRMM SECON CODA AMPLIT PERI AZIMU VELO SNR AR TRES W DIS CAZ7 KAR1 SZ EP 413 54.93 95 -0.0910 66.6 40 KPL HN ES 414 14.81 67 -0.0710 111 28 KPL HN AML 414 15.16 13.6 0.19 111 28 KPL HE AML 414 15.63 19.1 0.18 111 28 KAC SZ EP 414 5.68 67 0.1310 138 32 EAB SZ EP 414 5.55 67 -0.2410 139 102 PGB1 HE ES 414 24.01 67 0.3710 147 119 PGB1 HE AML 414 25.71 3.3 0.24 147 119 PGB1 HN AML 414 26.70 3.8 0.30 147 119 ELO SZ EP 414 9.49 54 -1.03 8 174 89 EDI HE ES 414 38.60 54 -0.43 3 216 105 EBH SZ EP 414 12.70 54 0.39 6 188 96 KPL HZ EP 414 2.16 67 0.4010 111 28

  36. SEISAN introductory training course • Demonstration • Installation • Seisan basics • Phase picking • Earthquake location • Magnitudes • Fault plane solution • Earthquake spectra • Participant’s data

  37. Earthworm and SEISAN • Earthworm is a modular automated processing system • Functionality: • real-time data import/export • archive data • signal processing: decimate, filter, ... • helicorder and spectrogram plots • detect seismic events • locate and determine magnitude • Data output can be in SEISAN format

  38. DataAcquisition Earthworm Association Verification DataImport Location Picker WAVE-RING PICK-RING HYPO-RING SharedMemory WaveServer DataProcessing EventTrigger Waveform and parametricdetection files SEISAN format Data Archival

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