The Kuril Islands stretch from the southern tip of Kamchatka Peninsula. Russian scientists had warned on Wednesday that strong aftershocks were possible in the region in the next several weeks.

The Russian govt said three areas near Kamchatka Peninsula are at risk of tsunami. While wave heights are expected to be low, it said it is unsafe to remain near the shore.

A 6.7-magnitude earthquake struck Russia’s Kuril Islands on Sunday, following a series of aftershocks since the record 8.7 quake on July 30. No tsunami alert has been issued. Authorities remain on alert as seismic activity continues in the region.