Kazakhstan National monitoring system of nuclear explosions and earthquakes

1
Kazakhstan National monitoring system of nuclear
explosions and earthquakes

• Mikhailova N.N., Sokolova I.N.
• Institute of Geophysical Researches of the
  National Nuclear Center of the Republic of
  Kazakhstan, Kurchatov Almaty
• www.kndc.kz

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The last decade in Kazakhstan was marked by
creation of the new modern monitoring system for
nuclear explosions and earthquakes. This
monitoring system was created in Kazakhstan
National Nuclear Center (NNC RK). Data of this
system are used in solving the tasks of global
monitoring of nuclear explosions and earthquakes.
Data are transferred to International Centers to
compile seismic bulletins (REB, ISC, EMSC) and
are available to researches from different
countries via IRIS/DMC also, data of this system
are used in tasks of Republic system of seismic
observations.

• The system includes
• seismic monitoring stations network
• infrasound monitoring stations
• Kazakhstan National Data Center in Almaty (KNDC)
  
• Stations communication system with National and
  International Data Centers

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Figure 1. The map of seismic and infrasound NNC
RK stations location (8 seismic arrays, 5 three
component seismic stations, 3 infrasound arrays).
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• The main feature of the seismic monitoring system
  is
• the major part of the stations is seismic arrays
  
• all stations are digital
• stations are located mainly throughout the
  perimeter of Kazakhstan territory
• due to careful geological site selection for
  stations construction and with relation to
  seismic noise characteristics, good arrays
  configuration, and combination of broadband and
  short-period instruments, all stations are high
  sensitive to both regional and teleseismic
  events.
• All these features allow to use the system
  successfully within National and International
  monitoring.

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The models of daytime seismic noise by data of
NNC RK network stations and world noise models.
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Center for Acquisition and Processing of the
special Seismic Information (Almaty)

• The main tasks of the Center are
• Acquisition and transmission of data from NNC RK
  network stations
• Processing of arriving seismic and infrasound
  data
• Storage and data exchange with other National and
  international Centers
• Conducting of scientific researches in support of
  monitoring.

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Communication scheme of Data Center in Almaty and
observation stations
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Kazakhstan Data Center conducts active data
exchange with many scientific Organizations of
Kazakhstan and the whole world. Data exchange
is conducted with the following Organizations
Origin data in real time are transferred to IDC
(Vienna), USA NDC (Florida, USA), IRIS (USA).
Automatic seismological bulletin EMSC
(France). Interactive bulletin ISC (England).
Summary bulletin Institute of Seismology of
Kazakhstan. Reports on large teleseismic events
GS RAS (Obninsk). SEED-volumes
IRIS/DMC KNDC data are transferred to NORSAR
(Norway), to SEA/DASE on demand.
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• Data Center creates the following
  products
• Automatic seismological bulletin (represented on
  the web-site)
• Online interactive bulletin (is represented on
  the web-site)
• Joint online seismological bulletin (data of SEME
  MES RK and IGR NNC RK) (is available on the
  web-site for special users)
• Catalogues of earthquakes and explosions (after
  discrimination of source nature).
• Automatic bulletin of infrasound events

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• Conclusion
• The modern stations system of seismic and
  infrasound monitoring was created in Kazakhstan
  for a short period under the auspices and active
  participation of International Organizations.
• Data of this system are used in tasks of
  Republican seismic observation system. Processing
  results are transferred to SEME MES to be used
  during creation of earthquakes catalogues and
  source mechanisms, and finally to precise the
  maps of seismic zoning and earthquake prediction.
  
• Data of this system are used for the tasks of
  nuclear explosions and earthquakes global
  monitoring. Data are transferred to International
  Centers to create world seismic bulletins (REB,
  ISC, EMSC) and to carry out scientific
  investigations by researchers from different
  countries
• .