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The seismic monitoring system is to protect public safety and facilities from natural disasters such as earthquake or Tsunami.

The use of seismic monitoring system allows to observe earthquake and Tsunami, and to prevent the natural disaster. Additionally, it provides necessary information to minimize the catastrophic failure.

Instrument Type Standard Specification Spcification(GeoSIG)
Accelero
meter
Type Triaxial (Vertical 1, Horizontal 2) Triaxial
Frequency 0.1Hz~50Hz,
Less than 3dB of Ground Motion
0.1Hz(DC)~50Hz,
Detect the ground motion of less than 3dB
Dynamic Range Existing Installation : 90dB or above, New Installation :120dB
Measurement Range : 2.0g or above
Greater than 120dB
Greater than 2.0g
Linearity
(Linearity)
Less than 1%
Less than 0.1%
Cross Axis Sensitivity Less than 1%
Less than 1%
Damping 60~70% 70%
Full Scale Output Differential Voltage Output
Differential Voltage Output
Recording Device Dynamic Range Greater than the dynamic range of accelerometer Greater than 140dB
Channel 3 Channels or above, Channel Expansion Optional 3 Channels or above, Channel Expansion Optional
Trigger(Trigger) STA/LAT or Threshold Method STA/LAT or Threshold Method
Data Acquisition 100/seconds Wavelength and maximum value computation 100/seconds Wavelength and maximum value computation
Data Record Time Save before 30 seconds and after 60 seconds Save before 30 seconds and after 60 seconds
Maximum Time Tolerance Less than 0.005sec, Vision correction from outside
Data Acquisition and
Transfer Method
TCP/IP TCP/IP Communication
Multi-Tasking
TCP/IP TCP/IP Communication
Multi-Tasking
Type and Save 100/Seconds, 20/Seconds Data Real-Time Trasnfer and Save 500/seconds Data real-time transfer
and save
Save Type SEED, mini-SEED SEED mini-SEED Type
  • K-water Construction 30 Dams and Youngsu Dam Seismic Monitoring System
  • Korea Namdong Power Co., Ltd. Yehcheon Dam Seismic Monitoring System
  • Four River Restoration Project Yeoju Pier and other 8 Multifunctional Seismic Monitoring System
  • Suspension Bridge and Cable-Stayed Bridge (Seohae Bridge and Incheon Bridge, etc.) Seismic Monitoring System
  • Seismic Monitoring System for Korea Gas Corporation and Gangleung-Wonju University
  • Seismic Monitoring System for Special Bridge and Structure
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