(a) Satellite image showing the southern outskirts of Bishkek facing the Ala-Too range. The topography is exaggerated by two times. Location of the array measurement is indicated. The dotted line shows the Issyk-Ata fault following Chediya et al. (2000). Google Earth, © 2012, CNS Spot Image © 2012, Digital Globe © 2012. (b) Map of Central Asia. Major faults are mapped in orange.