The sounds of sloshing lava are music to a volcanologist's ears. The reverberating belches and burps can help reveal what's going on deep within a volcano's belly.
Putting an ear to the Kīlauea volcano in Hawaii has allowed researchers to track the temperature of magma and the migration of volcanic gasses as they bubble to the surface."It's a new view into the dynamics of a really popular volcano,""People could stand near the lava lake rim and visit the lava flows coming out. But under the surface, there was lots more going on."experienced gentle eruptions of lava on a near-continuous basis.
The technique they are using is similar to listening to the tone a half-filled bottle makes when you tap it. As with the bottle, the vibrations ringing through the volcano depend on its contents. Without taking any direct measurements of the lava lake itself, the team has been able to track bubbling gas and changing temperatures over the course of eight active years.
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