Ortayu seismic station (OTUK) was installed in February 2010 at the edge of Ortayu settlement, Shet region of Karaganda area under CAREMON Project (https://kndc.kz/kndc/docs/publication/2012_3.pdf). The instrument facility is a bunker of 3 m depth equipped with seismic sensors and recording equipment. It was built on a gentle ledge of bedrock outcrops consisting of dense potassium-feldspathic granites of the Kyzylrai complex  αγP₂ – T₁kz (Figure 1).    

Figure 1. Topographic map of OTUK station installation place   

Recording instruments from 02.2010 to 08.2019:

•      Guralp CMG-DM24S6 и Guralp CMG-EAMPC (https://www.guralp.com)

Is installed near the sensors. Sampling rate: 100 samples/sec for all channels. Timing: GPS system.   

Operation mode – data transfer in real time.

Seismic sensors:

•      Broadband seismometer CMG-3ESPC (https://www.guralp.com)

•      Accelerometer CMG-5TС (https://www.guralp.com)

Recording instruments from 08.2019 to 05.2021:

•      DAS-6102 (https://www.pmdsci.com/standard_seismic_recorders.htm)

Is installed near the sensors. Sampling rate: 100 samples/sec for all channels. Timing: GPS system.

Operation mode – autonomous recording.

Seismic sensors:

•           Broadband seismometer CMG-3ESPC (https://www.guralp.com)

•           Accelerometer CMG-5TС (https://www.guralp.com)

Recording instruments from 05.2021 г.:

•           Centaur-6 (https://nanometrics.ca/products/digitizers/centaur)

Is installed near the sensors. Sampling rate: 40 samples/sec for all channels. Timing: GPS system.

Operation mode – data transfer in real time.

Seismic sensors:  

•           Broadband seismometer CMG-3ESPC (https://www.guralp.com)

•           Accelerometer CMG-5TС (https://www.guralp.com)

Parameters of OTUK station

Configuration of the seismic station is shown in Figure 2.