Software for seismological analysis in real-time SeisComP3 Software for seismological analysis in real-time GFZ (GEOFON; Potsdam) Winfried Hanka, Joachim Saul, Andres Heinloo, ... GEMPA (Potsdam) Bernd Weber, Jan Becker, ... Software package for seismological data acquisition, quality control, archiving and automated/manual analysis in real-time SeisComP3 originally developed within the GITEWS project (NOT available for MS Windows)

Software for seismological analysis in real-time SeisComP3 Software for seismological analysis in real-time Originally designed as acquisition and archiving software for GEOFON SeedLink as core protocol became a de-facto standard in Europe since 2001 Since 2003 development of simple automatic analysis tools Since 2005 with global associator/locator, interactive analysis (SH, SeisComP2) ArcLink for distributed archives (waveforms and meta data) Mid of 2006 start of SeisComP 3 core (communication, database) - TWS SeisComP 3 GUI development starting in end of 2006 Installation at BMG (Indonesia) in May 2007

Software for seismological analysis in real-time SeisComP3 Software for seismological analysis in real-time Software package for seismological data acquisition, quality control, archiving and automated/manual analysis in real time Inter-process communication between modules using TCP-based messaging to allow distributed processing; Communications managed by central mediator Uses/supports standards: SEED, SeedLink, QuakeML data model used for storage and communication GUI‘s for quick manual interaction/review, waveform visualization, event visualization and state-of-health monitoring Framework for seismological software development

SeisComP3 Features Automatic P picker (STA/LTA; AR-AIC in progress) Automatic global phase associator/locator (LocSAT) Magnitudes implemented: ML, MJ, mb, mB, Mw(mB), Mwp, Mw(Mwp) Slower magnitudes have no high priority, but will be implemented (e.g. Ms) Manual interaction where necessary; relocator choice (LocSAT, NonLinLoc) Remote processing/review SeisComP 3 uses (broadband!) mB as default magnitude for large earthquakes Written in C++ with most functionality available as library functions Database support as module (MySQL, SQLite, PostgreSQL) Scripting interface for the Python language

SeisComP3 Recent achievements Station inventory improved schema Use of full instrument response (e.g. MT, strong motion data) Abstract locator interface to allow use of not just LocSat NonLinLoc fully integrated as relocator option (ETH funded) Choice in scolv of locator and traveltime tables scolv offline mode to work with mseed files some new magnitudes incl. broaband Ms automated moment tensor (Hamburg Univ.) .....

Originally developed for teleseismic (tsunamigenic) earthquakes – flexibility for monitoring local earthquakes

Upcoming Features Multiband picker Different velocity models QuakeLink (based on jabber protocol) Support of MacOS Other fast magnitudes available (Mwp) or planned (Mwpd, mBc, ...) Oracle support planned

WF AT AP QC DB AL MT ET QC-Tool: Determining waveform quality like Timing quality RMS Offset Gaps … AutoPick: Detection of seismic signals MagTool: Calculating magnitudes MLv mb mB … WF SC3 Server AT AP QC Master: Central element of the messaging system, which is handling the meta data exchange between SC3 modules based on spread (open source messaging toolkit) TCP/IP writes objects to SQL DB (MySQL, POSTGRESQL) AmpTool: Calculating amplitudes for MLv mb mB … WaveformServer: Providing real time data by seedlink and archive data by arclink Master with DB-plugin DB EventTool: Associating origins to events (earthquake folder) Choosing best location and magnitude, AutoLoc: Automatic localization of earthquakes AL MT ET

SeisComP3 Processing Modules SeedLink – Real time data acquisition slarchive – Storing waveform data in SDS structure ArcLink – Retrieval of waveform data from archive scmaster – central modul of messaging system scqc – determination of Quality Parameters of WF scautopick – Automatic picking scautoloc – Automatic localization scamp – Amplitude determination scmag – Magnitude calculation scevent – Compilation of earthquake parameters

Graphical user interfaces SeisComP3 Graphical user interfaces scrttv – Showing actual waveforms of the stations scmv – showing the overall situation scesv – Summary of the Event scolv – Revision of processing results including manual picking scqcv – Showing the Waveform quality parameters

SeisComP3 Utilities scart – copying waveforms from archive to archive or file scbulletin – writing event information into a bulletin file scmm – Performance monitor (GUI) scdb – writing QuakeML files to DB scevtlog – Loggin of all event updates scevtls – providing event IDs within a timespan

Simplified automatic processing AutoPick AutoLoc EventTool GUI Pick 6 Pick 7 Pick 5 Pick 1 Pick 2 Pick 3 Pick 4 Origin 1 Event 1 P O E Time Location Magnitude Time Location Magnitude 5 Magnitude 7 Magnitude 6 Magnitude 3 Magnitude 2 Magnitude 4 Magnitude 1 O MagTool Origin 1 A M Waiting until time windows of 30s for mb amplitude calculations are filled. Amplitude 2 Amplitude 1 Amplitude 3 Amplitude 7 Amplitude 5 Amplitude 4 Amplitude 6

GUIs - scmv - Station with actual ground motion Ground motion legend Triggering station (blinking)

GUIs - scmv - P-wave Associated stations Epicenter S-Wave Size=Magnitude Color=Depth S-Wave

GUIs - scrttv - Pick Time Trace information

Trace sorted by Distance GUIs - scrttv - Picks Trace sorted by Distance Origin arrived

Magnitude information GUIs - scesv - Time information Magnitude information Epicenter Location information

GUIs - scolv - Summary Epicenter plus Stations Origin information Arrival table Residuals X=Distance Y=Time Merge manual and automatic solution Open ManualPicker Relocate Commit Origin to system Fix Depth

GUIs - scolv - X=Azimuth Y=Residual

GUIs - scolv - Polarplot

Stationmagnitude table GUIs - scolv - Magnitudes Magnitude residuals Stationmagnitude table

GUIs - scolv - Align traces by phase or time Choose component (Z/N/E) Picking mode (P/S) Filter (defined) Relocate Manual pick (green) All traces Zoom trace Automatic picks (red) Theoretical arrivals (blue) Time Trace information

Interactive Analysis Advantages of automatic processing: updates are send continuously while processing faster in case of a dense network Disadvantage: solutions are not reviewed => Quality through Quantity Advantages of manual processing: faster at the beginning especially in case of a less dense network solutions are reviewed updates only in case of new analysis slower in case of a dense network => Quality depending on qualification of the seismologist

http://www.seiscomp3.org/wiki/license

Future of SeisComP3 GITEWS project, by which the development of SC3 was financed, ended in March 2010 Gempa is a spin-off from GFZ and is providing long term support for SC3 Business model is based on: Support & Maintainance Training Software development