HONOLULU (HawaiiNewsNow) - UPDATE at 5:31 a.m.:
A second powerful earthquake has been recorded near the same area off of Russia's Far East as Thursday's 8.3 magnitude quake, according to the Pacific Tsunami Warning Center.
The second quake, recorded at 4:57 a.m. Hawaii time, was measured as a 6.8 magnitude earthquake.
No tsunami was generated during the second earthquake.
A strong earthquake has shaken Russia's Far East north of Japan, but it was not strong enough to generate a tsunami threat to Hawaii.
The quake was measured at a magnitude 8.3, according to the U.S. Geological Survey. It was centered in the Sea of Okhotsk and was too deep to create a tsunami alert, officials at the Pacific Tsunami Warning Center say.
The earthquake happened at 7:45 p.m. Hawaii time.
Emergency agencies in the Far East issued a tsunami warning for Sakhalin and the Kuril islands, but lifted it soon afterwards.
Marina Kolomiyets, spokeswoman for Obninsk's seismic station of the Russian Academy of Sciences said the earthquake originated 375 miles under the sea bed and with the tremors so far down they have the potential to spread quite far.
Russian news agencies reported that residents of Petropavlovsk-Kamchatsky on the Kamchatka peninsula in the Okhotsk Sea felt the tremors for about five minutes. Residents ran out of the buildings. School children were evacuated.
Tremors were felt in Moscow, prompting some people to evacuate from buildings across the city.
Tremors are extremely rare in Moscow, the last recorded instance was in the 1977. The Russian Meteorological Service confirmed these reports but said they did not have immediate information about the magnitude of the tremors of Moscow.
Russian news agencies also cited eyewitnesses reporting strong tremors across Siberia.
To repeat the earthquake did NOT generate a tsunami for Hawaii.
Here is a link to the Pacific Tsunami Warning Center.