Publication Date:
2017-04-04
Description:
A volcano-seismic correlation was for a long time suspected to occur on the
Pacific margin of South America. Scalera (2008) using the data available in 2006 in the
Smithsonian Institution Catalogue of the volcanic eruptions, has revealed evidence that
earthquakes happened into the South-American Wadati-Benio zone – with magnitude
greater than 8.4 –are associated to an enhanced rate of volcanic eruptions, but has been
impossible to determine the causal chain between the two phenomena. After 2006, the effort
of the Smithsonian Institution to improve our knowledge of this region has resulted in
a greatly increased completeness of the catalogue, adding the new eruptions for the 2000-
2010 interval, but also an additional 50% of new entries in the list of the Andean volcanoes.
The occurrence of the Chilean earthquake of Maule – 27 February 2010 (M=8.8); occurred
at five decades from the 1960 quake – has been the occasion to rework all the data searching
for additional clues able to indicate a preferred causal direction eruptions-earthquakes
or earthquakes-eruptions – or from a third more general cause (e.g. a mantle movements) to
both eruptions and earthquakes. This short note discusses the three above-said hypotheses
and tries to establish if these results could be useful to the aims of the Civil Protection in
the programs of prevention and/or forecasting of natural disasters.
Description:
Published
Description:
479-492
Description:
1.5. TTC - Sorveglianza dell'attività eruttiva dei vulcani
Description:
3.1. Fisica dei terremoti
Description:
3.2. Tettonica attiva
Description:
3.3. Geodinamica e struttura dell'interno della Terra
Description:
3.6. Fisica del vulcanismo
Description:
4.3. TTC - Scenari di pericolosità vulcanica
Description:
5.3. TTC - Banche dati vulcanologiche
Description:
open
Keywords:
South American volcano-seismic correlation
;
Natural disasters prevention
;
Expanding Earth
;
04. Solid Earth::04.01. Earth Interior::04.01.02. Geological and geophysical evidences of deep processes
;
04. Solid Earth::04.03. Geodesy::04.03.99. General or miscellaneous
;
04. Solid Earth::04.06. Seismology::04.06.03. Earthquake source and dynamics
;
04. Solid Earth::04.07. Tectonophysics::04.07.02. Geodynamics
;
04. Solid Earth::04.07. Tectonophysics::04.07.04. Plate boundaries, motion, and tectonics
;
04. Solid Earth::04.07. Tectonophysics::04.07.08. Volcanic arcs
;
05. General::05.02. Data dissemination::05.02.03. Volcanic eruptions
Repository Name:
Istituto Nazionale di Geofisica e Vulcanologia (INGV)
Type:
book chapter
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