A whitish semicircular arc seen opposite the sun in fog. ...
A slow earthquake is a discontinuous, earthquake-like event ...
A foreshock is an earthquake that occurs before a larger ...
The San Salvador Volcano is a stratovolcano situated ...
Mount Pelee is an active volcano at the northern end of the ...
Shield volcanoes, so named for their broad, shield-like ...
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Terms
Blossaries
Followers
47
3
8
1
16
4
10
2