[Regnum] The Klyuchevskoy volcano in Kamchatka ejected a column of ash to a height of nine kilometers. This was announced on August 4 by the Kamchatka branch of the Federal Research Center of the Unified Geophysical Service of the Russian Academy of Sciences.
"Klyuchevskoy Volcano. August 4, 2025, 21.11 Kamchatka time (12.11 Moscow time). The height of the ash emission was about 9,000 meters above sea level," the service said in a message on its Telegram channel.
There were four ash emissions from the volcano on August 4. The previous ones rose to six and a half, seven and a half and eight kilometers above sea level.
Earlier, Corresponding Member of the Russian Academy of Sciences, Director of the Institute of Volcanology and Seismology of the Far Eastern Branch of the Russian Academy of Sciences Alexey Ozerov stated that earthquakes in Kamchatka caused volcanic activity. Earthquakes began on July 30, and at the same time, as the scientist claims, volcanic activity increased significantly.
He recalled that the Avachinsky giant was the first to become active. Steam and gas emissions rose to a height of 300 meters above its crater. Then followed the Klyuchevskogo reaction, where an ash column up to 6 km high formed, and a lava flow began to pour out onto the slope. The Krasheninnikov volcano became active on August 3. According to Ozerov, the giant had been silent since about 1400.
On July 30, an earthquake measuring 8.7–8.8 occurred in Kamchatka Krai. The seismic event was the strongest since 1952. A tsunami threat was declared in the region, and residents were asked not to approach the coast in dangerous areas. A high alert regime was introduced in the region, and a state of emergency was declared in the North Kuril District of Sakhalin Oblast. The earthquake triggered a tsunami in the Pacific Ocean, which is why a threat was declared in the coastal areas of Japan, the United States, the Philippines, and several Latin American countries.
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