Publication Date:
2017-04-04
Description:
We propose a formal procedure to validate the hypothesis of a causal relationship between great tectonic earthquakes and
volcanic eruptions through a forward statistical test. This approach allows such a hypothesis to be evaluated in an objective way,
ruling out any possible unconscious overfitting of the past data. The procedure consists of two steps: (a) the computation of the
stress perturbation in a volcanic area due to some selected seismic event, by means of a spherical, layered, viscoelastic and self-
gravitating earth model; and (b) the application of a statistical test to check the differences in the spatio-temporal distribution of
eruptions before and after the earthquake, weighting each eruption with the stress perturbation induced at the volcano at the time
of the eruption. Finally, for the sake of example, we apply the method to the case of the recent Engano earthquake in Sumatra
(June 2000) and the Denali earthquake in Alaska (November 2002).
Description:
Published
Description:
383 – 395
Description:
3.6. Fisica del vulcanismo
Description:
JCR Journal
Description:
reserved
Keywords:
earthquake–volcano interaction
;
post-seismic stress perturbation
;
forward test
;
Engano earthquake
;
Denali earthquake
;
04. Solid Earth::04.08. Volcanology::04.08.99. General or miscellaneous
Repository Name:
Istituto Nazionale di Geofisica e Vulcanologia (INGV)
Type:
article
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