Kyrgyz Seismic Network Kyrgyz Seismic Network Kyrgyz Seismic Network. The territory of Kyrgyzstan is characterized by high seismicity. About three thousand earthquakes occur on average each year with magnitude up to eight points. Therefore, seismic monitoring is of crucial importance to the country. The Kyrgyz Seismic Network, KNET, is the first regional continuous telemetric network of very broadband seismic data in Kyrgyzstan. This network was jointly developed by several institutions under Joint Seismic Program by Incorporated Research Institutions for Seismology (IRIS), which were: University of California, San Diego, the Kyrgyz Institute of Seismology, and the Russian Institute of High Temperature Physics. As a
Seismic refraction velocity of the first layer V - velocity of the second layer h - thickness of the first layer T0 - intercept Seismic refraction Seismic refraction is a geophysical principle (see refraction) governed by Snell's Law. Used in the fields of engineering geology, geotechnical engineering and exploration geophysics, seismic refraction traverses (seismic lines) are performed using a seismograph(s) and/or geophone(s), in an array and an energy source. The seismic refraction method utilizes the refraction of seismic waves on geologic layers and rock/soil units in order to characterize the subsurface geologic conditions and geologic structure. The methods depend on the fact