Fig. 1 presents fragments of records obtained from digital stations Petropavlovsk (∆ 1.3º), Magadan (∆ 9º), Yuzhno-Sakhalinsk (∆ 12.7º), Bilibino (∆ 16º), Kuldur (∆ 18.4º). Fig. 2 presents fragments of records obtained from digital stations Talaya (∆ 34.2º), Lovozero (∆ 53.4º), Arti (∆ 54.1º), Kirov (∆ 56.1º), Obninsk (∆ 63.2º).

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GS RAS registered 6 aftershocks with M>=5.2 within 2 hours after the main shock.

According to TASS several people sought medical treatment after the earthquake. The wall in the building of kindergarten #15 in Petropavlovsk-Kamchatsky collapsed with no casualties (fig.1). Problems with the Internet were observed in Kamchatka, later all communication nodes were restored.
According to Tsunami warning services a tsunami threat was announced for the coast of Avacha Bay. According to TASS Igor Medvedev, head of the tsunami laboratory at the P. P. Shirshov Institute of Oceanology of the Russian Academy of Sciences, stated: "According to visual observations, in a number of places in Kamchatka and the Kuril Islands, the height of the tsunami reached five to six meters." A tsunami of 3-4 m height was observed in the Yelizovsky district of Kamchatka, near the Vodopadnaya weather station. A tsunami hit the coastal part of Severo-Kurilsk, residents were gathered on high ground. The port of Severo-Kurilsk and the fishing industry were flooded.
According to KAmchatka Branch of GS RAS the earthquake was felt in Petropavlovsk-Kamchatsky with a magnitude of 7 MSK, and in Severo-Kurilsk with a magnitude of 5-6 MSK.
According to Siberian Branch of GS RAS the earthquake was felt in Kurilsk and Reidovo with a magnitude of 2-3 MSK.
According to U.S. Tsunami Warning System a tsunami threat was announced along the coasts of Russia and Japan, later the tsunami threat was expanded to all islands in the Pacific Ocean and the coasts of North and South America, and the southeastern part of Eurasia. In Hawaii, maximum tsunami waves of 1.7 m were observed in Kahului and 1.5 m in Hilo. In the United States, the maximum tsunami wave height of 0.8 m was observed in Alaska in Atka and in California 1.1 m in Crescent City. In Japan, the maximum tsunami wave height of 0.30 m was observed on the islands of Chichijima, Hokkaido.

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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 109 stations, including 85 stations which registered compression waves (plus signs), and 24 stations which registered tensile waves (minus signs). The stations are located in the interval of epicentral distances 1.2-94.5º and in azimuth sector Az=7-356º. 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 SE oriented compressional stresses. (AZ=125-139º). One nodal plane NP1 strikes SW (STK=214-224º) according to GS RAS and GCMT and S-SW (STK=198º) according to USGS NEIC, another plane NP2 strikes N-NE (STK=32º) according to GS RAS, NE (STK=38º) according to GCMT and E-NE (STK=58º) according to USGS NEIC. NP1 plane is dipping more horizontally (DP=18-20º) if compared with NP2 (DP=70-76º). The type of motion along NP1 – thrust according to GS RAS and GCMT and thrust with left lateral slip, the type of motion along NP2 – reverse fault. Seismic moment according toUSGS NEIC is Mo=2.221*10**22 N*mм, Mww=8.83. According to LDEO GCMT it makes Mo=1.45*10**22 N*m, Mw=8.7.