volcanicity
(vɒlkəˈnɪsɪtɪ)
[ad. F. volcanicité, or f. volcanic a. + -ity. Cf. vulcanicity.]
Volcanic action, activity, or phenomena.
| 1836 Macgillivray Trav. Humboldt xxvii. 411 Volcanicity, or the influence which the interior of our planet exercises upon its external envelope. 1883 Athenæum 25 Aug. 245 One of those earthquakes called perimetric, that are due to a local volcanicity. |