Download the 2006 Annual Report - IRIS

GSN
Rhett Butler, Kent R. Anderson • IRIS Consortium
Jeffrey J. Park • Yale University
GSN Standing Committee
Jeffrey Park (Chair)
Robert Detrick
Ed Garnero
Miaki Ishii
Laura Kong
William Leith
Fenglin Niu
Mike Ritzwoller
Xiaodong Song
Jeroen Tromp
Rhett Butler
Yale University
Woods Hole Oceanographic Institute
Arizona State University
Harvard University
UNESCO
USGS, Reston
Rice University
University of Colorado
University of Illinois, Urbana
California Institute of Technology
GSN Program Manager
200 sec.
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The Global Seismographic Network is a permanent network of state of the art seismological and geophysical sensors
connected by available telecommunications to serve the scientific research and monitoring requirements of our national and
international community. All GSN data are freely and openly available to anyone via the Internet. Installed to provide broad,
uniform global Earth coverage, 143 GSN stations are now sited from the South Pole to Siberia and from the Amazon basin to
islands in the Indian Ocean, in cooperation with over 100 host organizations and seismic networks in 64 countries worldwide.
The GSN coordinates closely with other international networks through the Federation of Digital Seismograph Networks
(FDSN), of which the IRIS is a founding member.
The GSN is primarily operated and maintained through the USGS Albuquerque Seismological Laboratory (ASL) and
through the University of California at San Diego IRIS/IDA group. Eighteen GSN-Affiliate stations and arrays contribute
to the network. In collaboration with the US National Earthquake Information Center, the GSN and NEIC are principal
global sources of data and information for earthquake locations, earthquake hazard mitigation, and earthquake emergency
response. In collaboration with National Oceanic and Atmospheric Administration (NOAA) Tsunami Warning Centers and
Japanese Meteorological Agency, the GSN provides essential data for tsunami warning response globally. The GSN is an
official observing system within the Global Earth Observing System of Systems (GEOSS).
Through supplemental funding in response to the 2004 Indian Ocean tsunami, this year the USGS enhanced GSN telemetry,
added spare equipment, and established a new Caribbean Network whose stations join the GSN as Affiliates. New seismic
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KBS
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ALE
KEV
COLA
SFJD
NRIL
BILL
BORG ★
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KONO
TIXI ★
ILAR
LVZ
YAK
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MA2
OBN ARU
★ PET
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FFC
ESK
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KURK
TLY
KDAK
HIA
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RSSD
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MAKZ
COR
KIEV BRVK
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MDJ
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BFO
KIV
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YSS ATTU
AAK
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PAB
ULN
ADK
CMB
NVAR CCM
HRV
GRFO
BJT
CMLA
s PDAR
WMQ
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ERM
SSPA
ANMO
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ANTO
LSA
XAN
PAS
WVT
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GNI ★
PFO
BBSR
ABKT
MAJO
NIL
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KBL
KMI
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INCN
MIDW
TUC
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KIP
H2O
HKT
✹ DWPF
MACI
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ENH
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WAKE
■ SDDR
SLBS ■
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SJG
KOWA
WAHI
TATO
RAYN
POHA
TEIG
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QIZ
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GUMO
JOHN
TGUH
BBGH
FURI
CHTO
KWAJ
JTS
GRGR
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BCIP
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SACV
SDV
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✦ PALK
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DAV
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TARA ★ KANT
XMAS
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PAYG ASCN
MSEY
BTDF
PTGA
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KAPI
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★ ★ ✦ HNR FUNA
OTAV
KMBO
MSKU
DGAR
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RCBR
LSZ
MSVF
ABPO
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NNA
PMG
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PTCN
★ ★ ✦ SAML
COCO
WRAB
AFI
SHEL
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MBWA
RPN
TSUM
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RAR
LVC
LBTB
CTAO RAO
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LCO
TRIS
SUR
NWAO
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SNZO
TRQA
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TAU
EFI HOPE
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MCQ
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PMSA
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CASY
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QSPA
WANT
VNDA
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SBA
IRIS
Current
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Affiliate
Array
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Geoscope
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Japan
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Global Seismographic Network
& International Federation of Digital Seismographic Networks
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IRIS International & National Cooperative Sites
Mednet Geofon/AWI/BGR/BFO China/USGS Mexico Singapore Botswana Andes Australia
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USGS
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AFTAC
★ A
SMU
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stations installed in 2006 include Barbados, Honduras,
Dominican Republic, Panama, and Grenada. All
Caribbean sites have real-time telemetry. In 2006 the
IRIS/IDA group upgraded hardware at several sites
and prepared new sites in Madagascar and United
Arab Emirates.
Our transition from air-mailed data media and dialup
telephone access to continuous, real-time telemetry
of all GSN data is nearly complete. Only nine sites
now lack real-time telemetry (~94% connectivity).
Fourteen new or upgraded telemetry circuits were
established in 2006. Internet connectivity to GSN
stations was established by ASL in Spain and Chile,
by IRIS/IDA in the South Atlantic on Saint Helena
Island, and through collaboration with GSN station
hosts in Singapore and Thailand. Bandwidth to our
site in the Falkland Islands site was upgraded.
The GSN is working closely with the International
Monitoring System (IMS) for the Comprehensive