Indonesia’s rumbling Mount Lewotobi Laki Laki erupted Monday, sending a column of volcanic materials as high as 18 kilometers (11 miles) into the sky and depositing ash on villages.

An underwater volcano near Tonga revealed how sediment spreads, disrupts marine life, and raises questions about deep-sea mining.

The ash cloud above Mount Lewotobi Laki-laki on Monday was about four times taller than the one produced by an eruption there last month.

Australia's Volcanic Ash Advisory Center (VAAC) Darwin issued a red aviation warning about the volcanic ash plume, saying it rose to an estimated 12-mile altitude and is moving at 30 knots [34.5 mph] in a westerly direction.

Indonesian volcano Mount Lewotobi Laki Laki dramatically erupted on Monday morning, propelling a huge column of ash 11 miles into the sky and blanketing nearby villages. No casualties have been reported in the eruption,

KILAUEA, Hawai'i (Island News) -- The 28th episode of Kilauea abruptly ended after hours of fountaining on Wednesday. The eruption ended at 1:20 p.m.

Deep below the surface of the ocean, bacteria and critters that feed off nutrients spouting from hydrothermal vents met with a sudden wave of volcanic sediment, leaving them suffocated.

At the 13th Moon Gravity Well, his debut live album with the Barry Walker Unit, was recorded on a geologically auspicious date: the anniversary of the eruption of Mount St. Helens on May 18, 1980, which coincided with two shows May 17 and 18 last year at the Southeast Portland brewery that gave the album its name.

In geology, even small layers can tell big stories. But figuring out the origins of such small layers can be a challenge, requiring careful mapping and dating of rock units that might easily be overlooked.