GEOFON and its Role in Global Seismic Monitoring and Tsunami Warning
Winfried Hanka, GeoForschungsZentrum (GFZ), Potsdam, Germany, [email protected]
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)
Overview
GEOFON operates and supports
● the GEOFON cooperative permanent VBB network (50 + 1 stations)● 23 GEOFON partner networks on national level
Germany (GR, BO, BV, SX)Austria (OE)Finland (FN)Estonia (EE)LatviaDenmark/Greenland (DK)Poland (PL)Czech Republic (2 x CZ)Slowakia (SK)
Hungary (HU)Romania (RO)Greece (HL)Turkey (KO)Israel (IS)Spain (RU)Portugal (2 x)Nicaragua (NI)Indonesia (IA)
● other major collaborating networks (near real-time data collectionsupport [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, BalkanStability Pact, ASEAN community, Central America) and through itsSeisComP Users Group to many more
“Networks”
The permanent GEOFON Network, its partner networks and other data sources(GEVN - GEOFON Extended Virtual Network: > 200 stations)
“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 SeismicNetwork (~60 stations)● BMG (Indonesia)● NIED, JAMSTEC (Japan)● CEA (China)● CTBTO
“Networks”
GEOFON and the Indian Ocean Tsunami Warning SystemCooperation 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)
“Networks”
Proposed Station Distribution for an Earthquake Monitoring Network for the Indian Ocean Region (Locations to be discussed)
“Networks”
oceanographic data
real-timedata stream
Real-timeSensordata
seismic data
Tsunami scenarios
warning
Concept Tsunami Early Warning Centre
satellite data
future real-time satellite data
other geodata sources (public
authorities, departments)
processing
geospatial data- topography- bathymetry- land cover- infrastructure- scenarios
risk modelling, vulnerability assessment,
evacuation planning
local situation centre
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local warning centre
decision support system
real-timedata stream
no warning
evaluation/recommendation
Tsunami scenarios Tsunami scenarios
post Tsunami modelling
processing
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 GEOFONpartner 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
“Data”
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 emails, 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 inIndonesia (GITEWS), Germany (GRSN), Greece, Slovakia, Nicaragua,South Africa
“Products”
GEOFON/GEVN (Near) Standard Real-Time Network Data Processing Products
Global Seismic MonitorAutomatic Bulletin
“Live” SeismogramsEmail& SMS alerts
“Products”
Comparison of automatic GEOFON/GEVN locations versus NEIC (QED)(new AutoLoc version, June 21 – August 11, 2005)
“Products”
Preliminary GITEWS Real-Time Earthquake Monitoring
A preliminary GITEWS Earthquake Information System is operational at BMG since June 2005
Present Virtual Real-Time Seismic Network at BMG – external data imported over Internet
Preliminary GITEWS Real-Time Earthquake Monitoring
Products of the preliminary Indonesian Earthquake Information System
Preliminary GITEWS Real-Time Earthquake Monitoring
Preliminary GITEWS Real-Time Earthquake Monitoring
Comparison of present automatic BMG/GEOFON locations with NEIC(QED)
Advanced (Near) Real-Time Earthquake Monitoring Products
Direct Seismic Tsunami Observations
Rupture Tracking
Reliable Rapid Magnitude Estimation
Real-Time Moment Tensors (GRID-MT)
Kawakatsu (1998)
Krüger et al (2005)
Yuan et al (2005))
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?● ???
Conclusions