Huge volcano on Jupiter's moon Io erupts on regular schedule

phys.org | 8/6/2019 | Staff
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Volcanic eruptions are difficult to predict, but observations have shown the largest and most powerful volcano on Io, a large moon of Jupiter, has been erupting on a relatively regular schedule.

The volcano Loki is expected to erupt in mid-September, 2019, according to a poster by Planetary Science Institute Senior Scientist Julie Rathbun presented today.

Loki - Volcano - Io - Telescopes - Earth

"Loki is the largest and most powerful volcano on Io, so bright in the infrared that we can detect it using telescopes on the Earth," Rathbun said. Based on more than 20 years of observations, Loki undergoes periodic brightenings when it erupts on a relatively regular schedule. In the 1990s, that schedule was approximately every 540 days. It currently appears to be approximately every 475 days. Rathbun discovered the 540-day periodicity, described in her 2002 paper "L. Loki, Io: A periodic volcano" that appeared in Geophysical Research Letters.

"If this behavior remains the same, Loki should erupt in September 2019, around the same time as the EPSC-DPS meeting in Geneva. We correctly predicted that the last eruption would occur in May of 2018," said Rathbun, who presented her poster "Io's Loki volcano: An explanation of...
(Excerpt) Read more at: phys.org
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