Core Points - A series of earthquakes have awakened seven volcanoes on the Kamchatka Peninsula, leading to a phenomenon referred to as a "volcanic eruption festival" [1] - The peninsula has shifted 2 meters southeast due to these geological activities [1] - The strongest earthquake occurred on July 30, with a magnitude of 8.7, affecting the region and causing significant volcanic activity [1] Volcanic Activity History - Volcanic activity in Kamchatka and the Kuril Islands is believed to have started 50,000 to 60,000 years ago, with the most intense activity occurring around 1,800 years ago [2] - The volume of volcanic debris from that period reached 18 to 19 cubic kilometers, with eruption columns rising up to 23 kilometers [2] - Historical eruptions have caused extensive ecological damage, including the destruction of at least 500 square kilometers of life and approximately 12,000 square kilometers of vegetation [2] Natural Disaster Risks - Volcanic activity can trigger other natural disasters, such as glacier melting and mudslides, posing risks to local communities [3] - The Kamchatka coastline has faced at least 24 tsunamis in the past 300 years, with significant events recorded in 1737 and 1952 [3] - The region is under constant threat from tsunamis, which have historically resulted in loss of life and property [3] Historical Accounts - Historical records by Stepan Krasheninnikov indicate that volcanic eruptions often precede large-scale eruptions with years of smaller eruptions [4] - Local interpretations of volcanic activity have been shaped by cultural beliefs, with some communities viewing volcanoes as the resting place of the deceased [4] - Modern responses to volcanic eruptions have improved, with better housing structures and public awareness regarding volcanic ash [4][5] Preparedness and Response - Strong volcanic eruptions typically have precursors such as small earthquakes and distinctive rumbling sounds, prompting evacuations from danger zones [5] - Historical records show that catastrophic eruptions can lead to severe wildfires and long-lasting ecological changes, turning vast areas into deserts [5]

Group 1 - The Sheveluch volcano in the Kamchatka Peninsula experienced two ash eruptions on May 17, with ash reaching altitudes of 8 kilometers and 8.5 kilometers respectively [1] - The first eruption's ash plume extended 200 kilometers to the northeast, while the second eruption's ash plume extended 35 kilometers to the northeast-north [1] - The volcanic activity poses a threat to aircraft operations [1] Group 2 - Sheveluch volcano is one of the active volcanoes located at the northern end of the Kamchatka Peninsula, with an elevation of approximately 3,283 meters [2]