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Station: Iri

Code: SIRI Country: Georgia

Network: temporay network in the epicentral area of the Racha earthquake

Coordinates: 42.517° N 43.551° E WGS84 Altitude: 1130m above sealevel

Building Type: free-field

Instrument Location: ground level

Geology: stiff soil Vs,30: -

Operator: Russian Academy of Sciences, United Institute Physics of the Earth, Moscow D-242, Russia

Station Reference: Arefiev S., P. Smit, et al. (1991): The Racha (Georgia, USSR) earthquake of 29. April 1991:

Strong-motion data of selected aftershocks 3.May 1991-30.June 1991. Publication Series of

the Swiss Seismological Service, no. 105, ETH Zurich, Switzerland

Last Revision: 15.06.2000

Acceleration Time Histories:

total: 6 Dist. [km] PGA [m/s*s]

Earthquake Name Date Time M D Fault. Horizontal Vertical

aftershock of Racha earthquake 03.05.1991 20:19:39 5.36 Ms 34 - 0.246 0.142

aftershock of Racha earthquake 03.05.1991 23:41:01 4.43 Ms 23 - 0.189 0.107

aftershock of Racha earthquake 10.05.1991 20:30:44 4.5 Ms 9 - 0.512 0.332

aftershock of Racha earthquake 14.05.1991 09:36:25 3.8 Ms 9 - 1.103 0.495

aftershock of Racha earthquake 15.05.1991 14:28:52 4.23 Ms 17 - 0.426 0.196

aftershock of Racha earthquake 15.06.1991 00:59:20 6.24 Ms 40 36 1.097 0.417

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