In 1831, a mystery eruption occurred, causing a 1°C drop in global temperatures only recently identified in a paper by ...

One of its most striking features is the Zavaritskogo volcano (also known as Zavaritskii) on Simushir Island. This complex volcanic structure consists of steep-walled, nested calderas encircling a ...

By analyzing sulfur and volcanic ash entrained in ice cores, researchers pinpointed a caldera in the remote Kuril Islands as the site of an unidentified 19th century eruption.

Update on February 5, 2025: This Landsat image shows the Zavaritskogo (also called Zavaritskii) caldera in the Kuril Archipelago, between northern Japan and Russia’s Kamchatka Peninsula.

Discover the incredible story of the Zavaritskii Caldera, the "lost" volcano that changed the climate. In 1831, a massive volcanic eruption dimmed sunlight, caused weather disruptions, and even ...

Compositional data of Zavaritskii Caldera Ash showing the composition match of ice core ash and material from the Zavaritskii caldera. Credit: Hutchinson and others, PNAS. However, Hutchinson and ...

For centuries, Simushir Island didn't attract much attention, but today, we know it's the location of a massive volcanic ...

What the researchers found was that the chemical composition of the ice core ash matched nicely with the Zavaritskii volcano on the remote, uninhabited island of Simushir, which is part of the ...

As detailed in a new study published in the journal Proceedings of the National Academy of Sciences, scientists say they've determined the culprit to be the Zavaritskii volcano on the extremely ...

Scientists have tried for years to find the volcanic culprit, and a new study comparing polar ice shards with samples from the Zavaritskii volcano in the Kuril islands has found an exact match.