Download IRIS-PMG Station, its significance to Papua New Guinea

IRIS-PMG Station, its Significance
to Papua New Guinea
Mathew Moihoi
Geophysical Observatory
Geological Survey of Papua New Guinea
Managing Waveform Data and related Metadata for Seismic Networks
21-26 October, 2007, PJ Hilton, Petaling Jaya, Malaysia
Contents
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Location
Background/
IRIS-PMG station
Instrumentation
Installation
Data collection/availability
Its significance
Future plans
Concluding remarks
Managing Waveform Data and related Metadata for Seismic Networks
21-26 October, 2007, PJ Hilton, Petaling Jaya, Malaysia
Location
• IRIS-PMG
station is
located in the
city of Port
Moresby
• It is built on
a hard rock
foundation
PMG
Background
• PMG station was first established in March 1957
• Seismic recordings commenced in December 1957
only for local monitoring purpose
• Station data became available to global scientific
community in 1967 when World-Wide Standardized
Seismographic Network (WWSSN) commenced
• Records were captured on photographic papers and
hot pen paper recorders
Managing Waveform Data and related Metadata for Seismic Networks
21-26 October, 2007, PJ Hilton, Petaling Jaya, Malaysia
PNG TECTONIC SETTING
• Primarily consisting of
two major plates and
three sub-plates
interacting amongst
each other
• These complex tectonic
interactions result in the
generation of the active
seismic zones in the
region
• Volcanic activities are
also very active in the
region
source: http://volvano.und.nodak.edu
Distribution of earthquakes
Data source: NEIC + PMGO
Seismicity and plate boundaries
Pacific
Plate
North Bismarck
Plate
South Bismarck
Plate
Australian
Plate
Solomon Sea
Plate
Seismicity with the generalized plate tectonic
configuration
Managing Waveform Data and related Metadata for Seismic Networks
21-26 October, 2007, PJ Hilton, Petaling Jaya, Malaysia
IRIS-PMG Station
• Operations commenced in October 1993
• Is a joint venture cooperation between
“IRIS/USGS – GEOFON – POSEIDON”
• Near real-time data transmission accessibility to global
scientific community
• Was certified as one of the auxiliary stations for
CTBTO operation in May 2004
• Currently being utilized also by the Pacific Tsunami
Warning Centre (PTWC) and Japan Metrological
Agency (JMA) for tsunami monitoring in the Pacific
Ocean
Managing Waveform Data and related Metadata for Seismic Networks
21-26 October, 2007, PJ Hilton, Petaling Jaya, Malaysia
Instrumentation
The station is equipped with IRIS-2 type
station configuration consisting of;
• STS-1 type Seismometers
• IRIS-2 type Data loggers
• 9-channel Quanterra data acquisition
(DA) unit
• Station data processor (DP) with
400MB disk space
• x2 150MB QIC cartridge tape drives
Managing Waveform Data and related Metadata for Seismic Networks
21-26 October, 2007, PJ Hilton, Petaling Jaya, Malaysia
Installation
• Installation of the instrumentation is
placed inside a seismic vault
• The sensors are placed in a separate
chamber
• The data logger and other accessories
placed in another chamber
Managing Waveform Data and related Metadata for Seismic Networks
21-26 October, 2007, PJ Hilton, Petaling Jaya, Malaysia
The vault
Vault Entrance
Sensor Room
CTBTO Instrumentation
Data Collection & Availability
• The station uses a quanterra Q680
digitizer as the main acquisition unit
• Data are also stored on a disk drive and
two retrieval tape drive cartridges
• There is also an On-line data availability
• There are also various IDC’s where data
are available and can be retrieve for use
Managing Waveform Data and related Metadata for Seismic Networks
21-26 October, 2007, PJ Hilton, Petaling Jaya, Malaysia
Its Significance
• The station helps supplement PNG’s local
earthquake monitoring capacity
• The station is used as a reference station
for local station network configuration
• One of the strategically located IMS
auxiliary stations for CTBTO operations
• Data available online all the time
Managing Waveform Data and related Metadata for Seismic Networks
21-26 October, 2007, PJ Hilton, Petaling Jaya, Malaysia
Its Significance (cont.)
• The station is providing earthquake data for
rapid preliminary location of significant
local events
• For major earthquakes, this has enable
authorities to make necessary decision to
either issue earthquake/tsunami warning
pending PTWC tsunami bulletin to the
general public
Managing Waveform Data and related Metadata for Seismic Networks
21-26 October, 2007, PJ Hilton, Petaling Jaya, Malaysia
Future Plans
To maintain the station efficiently at all
times for the benefit of all
To tie the station into ATWS network
currently in progress for tsunami
monitoring in the South West Pacific
May be to tie the station with IOTWC as
well !!!
To re-equip and upgrade where necessary
Managing Waveform Data and related Metadata for Seismic Networks
21-26 October, 2007, PJ Hilton, Petaling Jaya, Malaysia
Concluding Remarks
The station has and will continue to provide data
for continuous local earthquake monitoring for the
benefit of the people of PNG
The station will continue to be utilized by various
scientific community to better improve knowledge
in global seismology
The station will continue to provide data for local,
regional and global hazard mitigation strategies
through various research activities
The station will continue to be utilized by the IMS
for CTBTO activities
Managing Waveform Data and related Metadata for Seismic Networks
21-26 October, 2007, PJ Hilton, Petaling Jaya, Malaysia
Acknowledgement

IRIS-GSN for putting up the station

IRIS-USGS/ASL for maintaining the
station

IRIS-GEOFON-POSEIDON for the joint
cooperation and the interest in the
initial set up of the station

CTBTO/GCI for various station support
Managing Waveform Data and related Metadata for Seismic Networks
21-26 October, 2007, PJ Hilton, Petaling Jaya, Malaysia
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