Magnitude 7.4 quake off Russia's Kamchatka to cause tsunami waves within 300 km (186 miles)- US Pacific Tsunami Warning Center

USGS reports on the quake:

  • 201km ESE of Nikol'skoye, Russia
  • M 7.4
  • Depth 10km

That is a big tremor and not a big depth either. Tsunami waves are possible expected along Russian coast