World's tallest geyser keeps erupting, and scientists aren't sure why

Source: CNN | April 30, 2018 | Judson Jones

(CNN) — Yellowstone National Park’s Steamboat Geyser just erupted for the third time in two months, and scientists aren’t sure why.

It doesn’t erupt very often, but when it does, it is the tallest active geyser in the world. The Steamboat Geyser — known to eject a column of water 300 feet in the air — erupted for the third time April 27.

Based on seismicity data, these recent eruptions have been a little bit smaller than in the past. Even if these latest eruptions are smaller, they are still impressive compared with, say, Old Faithful.

The April Steamboat eruptions discharged about 200 to 400 cubic meters of water each, about 10 times the amount of water released by an Old Faithful eruption. The problem is that Steamboat lacks the faithfulness.

This geyser is in an area of the park called the Norris Geyser Basin, known to be the hottest and most changeable thermal area in Yellowstone. Before March 15, the last time this geyser spewed was in September 2014.

The day of the first eruption, park staff detected activity on nearby seismometers, thermal gauges and water discharge on a US Geological Survey stream gauge.

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