Fig. 1 presents fragments of records obtained from digital stations Matsushiro (∆ 5.6º), Yuzhno-Sakhalinsk (∆ 5.9º), Vladivostok (∆ 8º) Mys Shultsa (∆ 8.5º), Kuldur (∆ 11.1º). Fig. 2 presents fragments of records obtained from digital stations Yakutsk (∆ 22.3º), Talaya (∆ 28.4º), Bilibino (∆ 30º), Borovoe (∆ 48.5º), Arti (∆ 54º).

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GS RAS registered nine aftershocks with М>=4.7 within 10 hours after the main shock. According to Sakhalin Branch of GS RAS the earthquake was registerd at 21:52 and felt in Yuzhno-Kurilsk with intensity of 2 MSK.

According to TASS at least 39 people suffered injuries of varying severity as a result of the earthquake. After the shocks a tsunami warning was issued for the country's east and northeast coasts. Seismologists warned that a wave up to three meters high could reach the coastal areas of Aomori, Iwate, and Hokkaido prefectures. The tsunami warning was later announced for all regions of the country; the highest wave observed at the Japanese coast was 70 cm. height
No emergency situations were reported at Japanese nuclear facilities, including the damaged Fukushima Daiichi Nuclear Power Plant, due to the earthquake. The earthquake caused disruptions to rail service in the east and northeast of the country, with Shinkansen high-speed trains temporarily suspended.
According to Sberian Branch of GS RAS the earthquake was felt in the following populated areas of Russia: Yuzhno-Kurilsk, Goryachiy Plyazh, Golovino with I=3-4 points, in Mendeleyevo, Malokurilskoye with I=3 points.
According to National Tsunami Warning Center a tsunami threat was declared. Maximum tsunami wave height of 0.19 m was observed in the city of Hakodate on the island of Hokkaido, Japan.
Figure 1 was obtained from USGS NEIC, it presents USGS Community Internet Intensity Map made by 224 responses from 65 cities.

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Click here to view detailed macroseismic data (DyfitWeb service)

Focal mechanism solution of the origin was obtained by GS RAS with signs of initial arrivals of P waves at 99 stations, including 86 stations which registered compression waves (plus signs), and 13 stations which registered tensile waves (minus signs). The stations are located in the interval of epicentral distances 1-88º and in azimuth sector Az=1-352º. 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 predominantly east-southeast oriented compressional stresses (AZ=103-109º). One nodal plane NP1 strikes south (STK=171-184º), another NP2 – strikes N-NE (STK=22-23º). NP1 is dipping more horizontally (DP=17-22º) if compared with NP2 (DP=71-74º). The type of motion along NP1 – thrust, along NP2 – reverse fault. Seismic moment of an earthquake was obtained in GS RAS with spectra of P waves registered at the station "Obninsk" (∆ 65.3º), it makes Mo=2.124*10**20 N*m, Mw=7.5. Seismic moment according to USGS NEIC makes Mo=2.783*10**20 N*m, Mww=7.56. According to LDEO GCMT it makes Mo=2.92*10**20 N*m, Mw=7.6.