PS23, Makanchi, Kazakhstan
Weather and Geography
The seismic array at Makanchi is part of Kazakhstan’s National Seismic Network. This station was opened in 1970 by the Soviet Union for the express purpose of monitoring nuclear tests at the Semipalatinsk nuclear test site, which is a few hundred km away. In 1994, it was transferred to Kazakhstan’s National Nuclear Center. The special ambient
Testing, Evaluation and Certification
In 1996, the existing seismic station was designated as the location of one of the 50 primary seismic stations of the IMS. In 1998 it was re-situated 25 km east of the old site. Construction of a regional array with 11 physical elements over an aperture of approximatively 3.7 km began in November 1999. Am array installation and upgrade were completed in mid-summer 2001. Data availability measured in October and November 2001 and was found to meet the 98% requirement. By the end of 2001, PS23 was shown to have met all the minimum requirements for an IMS Primary Seismic station. The station was thus certified on 30 January 2002, the 12th primary seismic station to be included into the IMS network.