GEOFON and its Role in Global Seismic Monitoring and Tsunami Warning

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1 GEOFON and its Role in Global Seismic Monitoring and Tsunami Warning Winfried Hanka, GeoForschungsZentrum (GFZ), Potsdam, Germany,

2 Overview GEOFON is focused on networking and capacity building is known for simple, but efficient and innovative technical solutions acts as a support center and integration and coordination point for many networks and data centers operates its own permanent cooperative network (global with densification in Europe and in future in SE Asia) acquires real-time and other data from many partner networks and other public data sources operates automatic rapid global and regional earthquake information services deploys temporary networks operates the largest data archive in Europe as primary or secondary archive for many partner networks and several mobile instrument pools is the largest node in ORFEUS's future European Integrated Data Archive (EIDA) structure plays a major role in the setup of the Indian Ocean Tsunami Warning System (IOTWS)

3 Networks GEOFON operates and supports the GEOFON cooperative permanent VBB network ( stations) 23 GEOFON partner networks on national level Germany (GR, BO, BV, SX) Hungary (HU) Austria (OE) Romania (RO) Finland (FN) Greece (HL) Estonia (EE) Turkey (KO) Latvia Israel (IS) Denmark/Greenland (DK) Spain (RU) Poland (PL) Portugal (2 x) Czech Republic (2 x CZ) Nicaragua (NI) Slowakia (SK) Indonesia (IA) other major collaborating networks (near real-time data collection support [SeedLink]) MedNet (MN) GEOSCOPE (G) in future networks within the Indian Ocean area (Australia, South Africa, Sri Lanka, India (?),...) capacity building also for other networks (ORFEUS/MEREDIAN, Balkan Stability Pact, ASEAN community, Central America) and through its SeisComP Users Group to many more

4 Networks The permanent GEOFON Network, its partner networks and other data sources (GEVN - GEOFON Extended Virtual Network: > 200 stations)

5 Products The GEOFON Concept of Networked Seismographs and Data Centers

6 Networks GEOFON and the Indian Ocean Tsunami Warning System Germany has made a commitment to setup a tsunami warning system for Indonesia as part of the IOC/IOTWS (GITEWS) GEOFON became responsible for the seismic component of GITEWS It will deploy up to 40 smart land stations (VBB, SM, partly GPS), 22 in Indonesia contribute to up to 20 coastal stations (tide gauges, GPS, SM) supports the deployment of 2+? OBS stations (supplementing the DART buoys) Strategic partner networks for setting up the Indonesian BB Seismic Network (~60 stations) BMG (Indonesia) NIED, JAMSTEC (Japan) CEA (China) CTBTO

7 Networks Planned GEOFON Real-Time Network in Indonesia

8 Networks Planned International Real-Time Seismic Network in Indonesia

9 Networks GEOFON and the Indian Ocean Tsunami Warning System Cooperation within IOTWS outside of Indonesia with Australia (joint stations in NW Australia and on Indian Ocean islands) with South Africa (support upgrade of SA network, open it for teleseismic monitoring of Indian Ocean) talks with India, Sri Lanka and Iran started offer to UNESCO IOC/ICG to fill identified gaps in IOTWS seismic network participation in capacity building and coordination (SEED, SeedLink proposed as data format and RT data exchange protocol)

10 Networks Proposed Station Distribution for an Earthquake Monitoring Network for the Indian Ocean Region (Locations to be discussed)

11 Networks GITEWS Smart Landstation Design

12 Communication Concept Tsunami Early Warning System

13 decentral situation centre decentral situation centre Concept Tsunami Early Warning Centre seismic data processing oceanographic data Real-time Sensordata processing satellite data future real-time satellite data decision support system local situation centre geospatial data - topography - bathymetry - land cover - infrastructure - scenarios post Tsunami modelling re da al-ti t a me st re am local warning centre processing Tsunami scenarios Tsunami Tsunamiscenarios scenarios real-time data stream risk modelling, vulnerability assessment, evacuation planning evaluation/ recommendation warning other geodata sources (public authorities, departments) no warning

14 Data The GFZ Seismological Data Archive is the largest seismological data archive in Europe the primary archive and dissemination point for the permanent GEOFON VBB network (51 stations) passive seismological experiments of the GFZ Geophysical Instrument Pool (GIPP) and other pools in Germany and Europe (~45 experiments) the secondary (backup) archive and dissemination point for the GEOFON partner networks It imports NRT data from 24 networks over Internet (GEVN) exports NRT data from 18 partner networks over Internet (through its public SeedLink server) has online data holdings of ~12 TB (mirrored), backups volumes and raw data in tape archive provides capacity building for NRT and archive data distribution (SeedLink, ArcLink) in Europe: ORFEUS (MEREDIAN, EIDA [NERIES]) worldwide: IRIS/DMC, Central America and ASEAN communities, possibly IOC/IOTWS and AfricaArray

15 Products GEOFON's role in seismic monitoring GEOFON operates a rapid earthquake information service which is based on the GEOFON Extended Virtual Network (GEVN, > 200 stations) one of the fastest sources for earthquake information on the Internet fully automatic, no manual post processing operating a Global Seismic Monitor as well as regional ones (e.g. for EuroMed area and South East Asia) issuing alert s, short messages for pager and SMS, finger lists and RSS feeds and web pages (seismic monitors and bulletins) providing earthquake information to > 300 users in governmental agencies disaster management seismic services the scientific community news media private homes operating or supporting SeisComP based monitoring systems in Indonesia (GITEWS), Germany (GRSN), Greece, Slovakia, Nicaragua, South Africa

16 Products

17 Products Automatic Bulletin Live Seismograms Global Seismic Monitor & SMS alerts GEOFON/GEVN (Near) Standard Real-Time Network Data Processing Products

18 Products GEOFON/GEVN Regional Seismic Monitors

19 Products Comparison of automatic GEOFON/GEVN locations versus NEIC (QED) (new AutoLoc version, June 21 August 11, 2005)

20 Preliminary GITEWS Real-Time Earthquake Monitoring A preliminary GITEWS Earthquake Information System is operational at BMG since June 2005

21 Preliminary GITEWS Real-Time Earthquake Monitoring Present Virtual Real-Time Seismic Network at BMG external data imported over Internet

22 Preliminary GITEWS Real-Time Earthquake Monitoring Products of the preliminary Indonesian Earthquake Information System

23 Preliminary GITEWS Real-Time Earthquake Monitoring Comparison of present automatic BMG/GEOFON locations with NEIC(QED)

24 Advanced (Near) Real-Time Earthquake Monitoring Products Reliable Rapid Magnitude Estimation Rupture Tracking Krüger et al (2005) Kawakatsu (1998) Real-Time Moment Tensors (GRID-MT) Yuan et al (2005)) Direct Seismic Tsunami Observations

25 Conclusions What can GEOFON contribute to GEOSS? Its permanent network as part of the FDSN network the GFZ Seismological Archive as a major dissemination point for seismological data its global and regional seismic monitoring systems its contribution to the Indian Ocean Tsunami Warning System its capacity building capability It can act as coordination point for the GEOFON partner networks to contribute as well How can GEOFON benefit from GEOSS????