Fresh tremor of magnitude 5.1 struck far-east in Petropavlovsk-Kamchatsky, Russia right now, reported the US Geological Survey (USGS). The tremor was recorded at 07:17:36 (UTC+05:30), with its epicentre positioned 144 km southeast of the Kamchatsky area at a depth of 25 km.Tremor follows a robust 8.8-magnitude earthquake that struck close to Russia’s Kamchatka Peninsula earlier within the week. According to specialists, the quake was brought on by intense tectonic exercise alongside a significant subduction zone the place the Pacific Plate slides beneath the Okhotsk Plate. This zone lies inside the Pacific “Ring of Fire,” a seismically lively belt infamous for frequent earthquakes and volcanic eruptions. The vertical displacement of the seafloor throughout the 8.7-magnitude quake triggered a tsunami, resulting in wave alerts in a number of Pacific nations, together with Russia, Japan, and the United States. Adding to the area’s turmoil, the Krasheninnikov volcano in Kamchatka erupted in a single day for the primary time in over 600 years on August 3, 2025. The uncommon volcanic exercise carefully adopted the July 29 magnitude 8.8 earthquake off the coast of Petropavlovsk, intensifying considerations over tectonic instability within the space.