Russia's massive quake has already triggered at least 10 aftershocks, and could continue for months, according to scientists.

The US Geological Survey data suggested nearly 125 aftershocks of magnitude 4.4 or greater have been recorded near Russia in more than 16 hours following a powerful earthquake of 8.8 magnitude off Russia's far eastern coast.

An 8.8 magnitude earthquake struck off Russia's Kamchatka Peninsula, prompting over 90 aftershocks, with magnitudes ranging from 4.0 to 6.7. Tsunami alerts were issued across the Pacific, affecting regions as distant as Hawaii and California.