The initial earthquake was registered at 6:03 p.m. local time (06:03 GMT) near the southern part of the peninsula, with seismic shocks felt in the city of Petropavlovsk-Kamchatskiy.
Two aftershocks followed the earthquake later in the day, with the latest being of 4.1 magnitude registered at 8:44 p.m. local time. Its epicenter was located at a depth of 41 kilometers (25 miles), 205 kilometers away from Petropavlovsk-Kamchatskiy.
Kamchatka is located in the northeastern part of a seismically active zone in the Pacific Ocean known as the Ring of Fire and regularly suffers from powerful earthquakes.