Regional authorities in one region declared an emergency after a tsunami hit the Kuril Islands, and the Kamchatka Peninsula was watching for volcanic activity.

The 8.8-magnitude earthquake off Russia’s coast led to warnings and advisories for parts of Japan and Alaska. Officials in Hawaii told people to expect destructive waves.

Gov. Josh Green urged people in coastal areas to seek higher ground, with waves expected to reach the state within hours. “Do not wait,” he said.