Problems of Engineering Seismology: article

Aftershocks of the Racha earthquake of 29 April 1991
V. Burmin
Schmidt Institute of Physics of the Earth, Russian Academy of Sciences, Moscow, Russia
Journal: Problems of Engineering Seismology
Tome: 43
Number: 4
Year: 2016
Pages: 87-90
UDK: 550.34
DOI: 10.21455/VIS2016.4-6
Keywords: earthquake, aftershocks, hypocenters, hodograph
Аnnotation: On the basis of seismological bulletins, the hypocenter distribution of the 1991 Racha earthquake aftershoks is obtained. It is shown that in addition to crustal aftershocks, deep aftershocks with a depth of up to 170 km also occur. The main swarm of aftershocks concentrated in the depth range of 60-160 km. According to our data, the main shock on April 29, 1991 had the coordinates 42.35272° N and 43.74567° E. We estimated its focal depth as 6.7 km with an error of about 0.4 km.