Seismic: alternatives and connections

A mountain or hill, usually more or less conical in form, from which lava, cinders, steam, sulphur gases, and the like, are ejected; -…

A genus of trees of the Olive family, having opposite pinnate leaves, many of the species furnishing valuable timber, as the European…

The basinlike opening or mouth of a volcano, through which the chief eruption comes; similarly, the mouth of a geyser, about which a c…

The hard external coat or covering of anything; the hard exterior surface or outer shell; an incrustation; as, a crust of snow.

The act of breaking out or bursting forth; as: (a) A violent throwing out of flames, lava, etc., as from a volcano of a fissure in the…

Defect; want; lack; default.

A boiling spring which throws forth at frequent intervals jets of water, mud, etc., driven up by the expansive power of steam.

The melted rock ejected by a volcano from its top or fissured sides. It flows out in streams sometimes miles in length. It also issues…

Any crude mixture of mineral or organic matters in the state of a thin paste.

A loose garment to be worn over other garments; an enveloping robe; a cloak. Hence, figuratively, a covering or concealing envelope.

To be agitated with quick, short motions continually repeated; to shake with fear, cold, etc.; to shudder; to tremble.

A trembling; a shivering or shaking; a quivering or vibratory motion; as, the tremor of a person who is weak, infirm, or old.