Mount St. Helens is an active stratovolcano located in ...
A whitish semicircular arc seen opposite the sun in fog. ...
A slow earthquake is a discontinuous, earthquake-like event ...
The places known as hotspots or hot spots in geology are ...
Krakatoa is a volcanic island situated in the Sunda Strait ...
Slowly falling precipitation in the form of tiny water ...
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Terms
Blossaries
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Followers
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