Liputan6.com, Jakarta Krasheninnikov Volcano, located on the Kamchatka Peninsula in far eastern Russia, experienced a significant eruption early on Sunday, August 3, 2025.
This marked its first eruption in centuries, surprising geologists and local residents.
The eruption produced a column of volcanic ash 6 kilometers (about 4 miles) high that rose into the sky.
This ash cloud then spread eastward toward the Pacific Ocean, away from populated areas and therefore posing no immediate threat to public safety.
This volcanic activity is believed to be strongly correlated with the 8.8 magnitude earthquake that struck far eastern Russia a few days earlier, on July 29, 2025.
The link between the earthquake and the volcanic eruption is the focus of further research.
Latest Details of Russian volcano eruption Krasheninnikov
The eruption of Mount Krasheninnikov occurred on August 3, 2025, although some initial reports indicated activity began on August 2.
The volcano is located on the Kamchatka Peninsula in far eastern Russia, within the Kronotsky Nature Reserve, a UNESCO World Heritage Site.
The ash column reached a height of approximately 6 kilometers and moved eastward toward the Pacific Ocean.
Fortunately, there were no reports of ash falling on inhabited areas, minimizing the threat to the public.
The Kamchatka Volcano Eruption Response Team (KVERT) immediately assigned an orange flight code, indicating an increased risk to aircraft in the area.
The historical significance of this eruption is immense.
According to Olga Girina, head of KVERT, this was the first historically confirmed eruption in 600 years.
Meanwhile, the Smithsonian Institution's Global Volcanism Program records Krasheninnikov's last eruption as occurring approximately 475 years ago, in 1550, indicating a very long period of dormancy.
The eruption was also accompanied by significant seismic activity, including a 7.0-magnitude earthquake that triggered a brief tsunami warning for three Kamchatka regions.
Although the warning was later lifted, it highlights the complex geological dynamics in the region.
KVERT reported that volcanic activity had begun to decline on Sunday evening, but continued to warn of the possibility of continued "moderate explosive activity."
Geological Profile
Krasheninnikov Volcano is a complex of two overlapping stratovolcanoes within a large caldera.
Geographically, it is located on the east coast of the Kamchatka Peninsula, south of Lake Kronotskoye.
The mountain is named after the renowned explorer Stepan Krasheninnikov, who contributed significantly to the understanding of Kamchatka's geography and geology.
Geologically, the Krasheninnikov massif consists of two overlapping stratovolcanoes with three cone structures.
The southern cone is believed to be older, forming over a 4,500-year period, beginning approximately 11,000 years ago.
Meanwhile, the northern cone began forming after the southern cone was completed, with most of the deposits occurring between 2,200 and 2,400 years ago, indicating a long and complex formation history.
History of Mount Krasheninnikov
Krasheninnikov's previous eruptive history indicates long periods of inactivity.
As noted by the Smithsonian Institution's Global Volcanism Program, the last eruption before 2025 was in 1550.
However, Olga Girina of KVERT states that the last historically confirmed eruption was about 600 years ago, with the last lava flow occurring around 1463.
The current eruptive cycle began about 600 years ago, but includes only two documented eruptions.
Mount Krasheninnikov's strategic location within the "Volcanoes of Kamchatka" makes it a UNESCO World Heritage Site.
This status emphasizes the importance of conservation and further study of the region's unique geological phenomena, including recent volcanic activity.