Kamchatka: A magnitude-6.4 earthquake was recorded off the coast of Kamchatka, the Kamchatka branch of the Unified Geophysical Service of the Russian Academy of Sciences announced. "Magnitude: 6.4. Intensity in Petropavlovsk-Kamchatsky (preliminary estimate): 3," the service stated.

According to Philippines News Agency, the latest aftershock occurred at 1:35 p.m. (Moscow time), 213 km from the region's capital. The earthquake's source was detected at a depth of almost 39 km in the Pacific Ocean. This aftershock was among the strongest following the main earthquake.

On July 30, a magnitude 8.8 earthquake, Russia's strongest since 1952, struck off the Kamchatka coast. Within 20 minutes, four additional aftershocks with magnitudes ranging from 4.8 to 5.7 were recorded.

Following the seismic activity, six Kamchatka volcanoes became active, including Eurasia's tallest, Klyuchevsky, also known as Klyuchevskaya Sopka. Scientists forecast ash emissions could ascend to heights of 12 km in the coming days.

In Klyuchi village, near Klyuchevsky, volcanic ash is already present in the air. The head of the Ust-Kamchatsky district has advised residents to remain indoors unless of essential necessity.