Fig. 1 presents fragments of records obtained from digital stations Petropavlovsk (∆ 0.2º), Magadan (∆ 8º), Seimchan (∆ 10.6º), Yuzhno-Sakhalinsk (∆ 11.7º), Bilibino (∆ 15.7º). Fig. 2 presents fragments of records obtained from digital stations Kuldur (∆ 17.2º), Yakutsk (∆ 17.9º), Ussuriysk (∆ 19.5º), Vlsdivostok (∆ 20.2º), Tiksi (∆ 22.9º).

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According to Kamchatka Branch of GS RAS , the earthquake was felt in Petropavlovsk-Kamchatsky, Rybachy, Zavoyko with a magnitude of 5-6, in Vilyuchinsk, Avach, Novy, Nagorny, Pioneer, Svetly with a magnitude of 5, in Vulkanny, Yelizovo, Zeleny, Paratunka with a magnitude of 4-5, in Ketkino, Razdolny , Sokoche with a magnitude of 4, in Koryaki, Oktyabrsky, Severo-Kurilsk with a magnitude of 3-4, in Apache, Nikolsky with a magnitude of 2-3, in Zaporozhye with a magnitude of 2. In Petropavlovsk-Kamchatsky, cracks appeared in some buildings, tiles and plaster collapsed. (Fig.1)

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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 89 stations, including 29 stations which registered compression waves (plus signs), and 60 stations which registered tensile waves (minus signs). These stations are located in the interval of epicentral distances of 0.1-87º and in azimuth sector Az=11-343º. 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 W-phase Moment Tensor (Mww) technique and in the German Research Centre for Geosciences (GFZ). Solutions from different centers are close. The earthquake occurred under the action of compression stresses of similar magnitude , oriented to the northwest (AZ=311-315º) and tensile stresses oriented to the east (AZ=100º) according to GS RAS and E-SE (AZ=106-107º) according to USGS NEIC и GFZ. One nodal plane NP1 strikes S-SW (STK=209-211º), another plane NP2 strikes E-SE (STK=101-112º). NP2 plane is dipping more horizontally (DP=13-19º) if compared with NP1 (DP=84-87º). The type of motion along NP1 reverse fault, along NP2 right lateral slip. The seismic moment of the earthquake was obtained at the GS RAS from extended longitudinal waves at the station "Obninsk" (∆=62.2º), it makes Mo=7.262*10**18 N*m, Mw=6.5. The seismic moment according to USGS NEIC makes Mo= 8.011*10**18 N*m, Mww=6.5; according to GFZ it makes Mo=8.0*10**18 N*m, Mw=6.5.