Etna, Minnesota Greenleafton. Nearby places in Iowa include Chester and Lime Springs. Etna is located 5 miles east of Ostrander; and 4 miles west of Cherry Grove. Forestville Mystery Cave State Park is also nearby. Etna, Minnesota Etna is an unincorporated community in Bloomfield Township, Fillmore County, Minnesota, United States. Etna is located within ZIP code 55975 based in Spring Valley. A post office previously operated in the community of Etna from 1856 to 1901. The community was named for Mount Etna, on Sicily. The community is located 8 miles southeast of Spring Valley, at the junction of Fillmore County 14 and
Mount Etna a few hours. Volcanic gas emissions from this volcano are measured by a Multi-Component Gas Analyzer System, which detects pre-eruptive degassing of rising magmas, improving prediction of volcanic activity. An eruption on 16 March 2017 injured 10 people, including a BBC News television crew, after magma exploded upon contact with snow. The Global Volcanism Program has assigned a volcanic explosivity index (VEI) to all of Mount Etna's eruptions since January 1955: In the 1970s Etna erupted smoke rings, one of the first captured events of this type, which are extremely rare. This happened again in 2000. Video footage of 8