In the summer of 1831, an enormous volcanic eruption spewed sulfur gas into Earth’s atmosphere. The particles scattered sunlight, making our star appear green, purple and blue. Its rays struggled to reach the planet’s surface,

Scientists have identified the “mystery volcano” that erupted in 1831 and cooled Earth’s climate. They have linked it to an island volcano in the northwest Pacific Ocean.

The researchers conclude that the 1831 Zavaritskii eruption had a magnitude of 5 to 6, similar in power to the 1991 eruption of Mt. Pinatubo in the Philippines, one of the largest volcanic eruptions of the 20th century.

The location of a giant volcanic eruption in 1831 has eluded scientists for nearly 200 years, but now they have solved the mystery.

Scientists Make Groundbreaking Discovery About a Volcanic Eruption That Almost Turned the Sun Blue Scientists solved the 200-year-old mystery of the location of a large volcanic eruption that exerted a massive volume of gases which blocked sunlight and made the sun look blue.

While scientists have known that the major climate event reported during this period was caused by volcanic activity, the exact identity and location of the volcano remained a mystery – until now. A new study published in the journal PNAS found the Zavaritskii volcano on the remote,