Six volcanoes in the Russian Far East are erupting following an 8.8 magnitude earthquake and aftershock that shook the region last week.
Klyuchevskaya first erupted on July 30th. It had already shown signs of anxiety before the earthquake. However, it is difficult to know the exact impact of earthquakes on volcanoes. Eruptions at nearby volcanoes The eruptions of Severch, Vezimian, Karimsky, Abachinsky and Krasininikov continued quickly and continued to this day.
All volcanoes sit on a circle of fire, a geological feature famous for volcanoes and seismic activity.
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The area around this parade of eruption volcano known as the Kamchatka Peninsula is sparsely populated and does not appear to pose an active threat to the community. But eruptions can pose a risk to planes if they fly around ash feathers, University of Washington seismologist Harold Tobin told Live Science in an email.
Despite the recent moments of the eruption, experts say this type of volcanic activity is not normal. “Around 40-50 volcanoes are erupting actively around the world at any given time, and now is no exception,” Tobin said. “Kamchatka is a very volcanic and active area.”
Was it an eruption caused by an earthquake?
There is no clear or idiosyncratic way in which an earthquake can cause a volcanic eruption, but these two events could coexist in areas where one tectonic plate is dived with another.
Related: Russian volcanoes raise “Devil’s Horn” and spit out a 1,000-mile long river of smoke – Earth from space
“Major subduction zone earthquakes are not unprecedented as they cause volcanic eruptions,” Paul Segall, a geophysicist at Stanford University, told LiveScience in an email.
The largest earthquake ever recorded – the magnitude 9.5 earthquake that struck Valdivia, Chile in 1960 – followed by several volcanic eruptions. “The earthquake changed stress [Earth’s] The crust, which may have made magma easier to rise to the surface, said the earthquake-induced tremors of the ground could have contributed to the eruption by changing the movement of the magma under the Earth’s surface.
Both of these mechanisms could have played a role in the Chilean eruption, but it is still too early to characterize recent events in Russia, Segar said.
Klyuchevskoy had already shown signs of activity prior to the earthquake, but “it is likely that the vitality of the eruption, including some degree of ash discharge, has increased,” a US geological surveyor told Live Science on July 30.
The most notable aspect of this series of events was the eruption of Krache Garnikov for the first time in about 500 years. “The timing was either a very strong coincidence or the magma system was disrupted by strong seismic waves, causing an eruption,” Tobin explained. “It’s very difficult to tell which one applies to a given eruption.”
Furthermore, the Russian Ministry of Emergency in Kamchatka territory reported an increase in thermal activity in the seventh nearby volcano, Mutnovsky. Satellite images reveal a thermal anomaly in the volcano, which has not yet erupted, but scientists say they can’t predict whether or when it will blow.
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