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Institute of Geophysical Research of the National Nuclear Center of RK
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
Institute of Geophysical Research of the National Nuclear Center of RK
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.
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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
Institute of Geophysical Research of the National Nuclear Center of RK
Figure 1. The map of seismic and infrasound NNC RK stations location (8 seismic arrays, 5
three component seismic stations, 3 infrasound arrays).
Institute of Geophysical Research of the National Nuclear Center of RK
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.
Institute of Geophysical Research of the National Nuclear Center of RK
The models of daytime seismic noise by data of NNC RK network stations
and world noise models.
Institute of Geophysical Research of the National Nuclear Center of RK
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.
Institute of Geophysical Research of the National Nuclear Center of RK
Communication scheme of Data Center in Almaty and
observation stations
Institute of Geophysical Research of the National Nuclear Center of RK
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.
Institute of Geophysical Research of the National Nuclear Center of RK
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
Institute of Geophysical Research of the National Nuclear Center of RK
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
.
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