Fig. 1 presents fragments of records obtained from digital stations Sanae (∆ 25.4º), Novolazarevskaya (∆ 30.2º), Las Campanas Astronomical Observatory (∆ 31.8), Casey (∆ 53.7º), Santo Domingo(∆ 69.3º). Fig. 2 presents fragments of records obtained from digital stations Kislovodsk (∆ 133.6º), Obninsk (∆ 138.7º), Lovozero(∆ 145.4º), Kirov (∆ 146.4º), Arti (∆ 149.3º).

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Fig. 1 was obtained from USGS NEIC, it presents USGS Community Internet Intensity Map made by 12 responses from 7 cities.

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Click here to view detailed macroseismic data (DyfitWeb service)

Focal mechanism solution of the origin was calculated by GS RAS with signs of initial arrivals of P waves at 68 stations, including 39 stations which registered compression waves (plus signs), and 21 stations which registered tensile waves (minus signs). The stations are located in the interval of epicentral distances 2.5-99º and in azimuth sector Az=0-359º. Focal mechanism solution in stereographic projection on the lower hemisphere and elements of the mechanism are presented in the table. The table also contains focal mechanism solutions obtained at the USGS NEIC with WW-phase Moment Tensor (Mww) technique and in Lamont-Dohert Earth Observatory of Columbia University, USA (LDEO GCMT) with СМТ (Centroid moment tensor) technique. Solutions from different centers are close. The earthquake was caused by a slight predominance of compressional stresses oriented to the E-NE (AZ=61-62º) according to GS RAS and LDEO GCMT and W-SW (AZ=240º) according to USGS NEIC. One nodal plane NP1 strikes N (STK=8-12º), another NP2 strikes E-SE (STK=109-110º), both planes are dipping to the horizon at rathe steep and close angles (DIP=59-74º). The type of motion along NP1 – right lateral slip, along NP2 – left lateral slip. Seismic moment according to USGS NEIC makes Mo=2.324 *10**20 N*m, Mww=7.51. According to LDEO GCMT it makes Mo=2.76*10**20 N*m, Mw=7.6.