The Southwest Iberian Margin (SIM) is an active tectonic zone along and offshore of the coast of
Portugal
Portugal, officially the Portuguese Republic ( pt, República Portuguesa, links=yes ), is a country whose mainland is located on the Iberian Peninsula of Southwestern Europe, and whose territory also includes the Atlantic archipelagos of ...
. It is believed to be an incipient
subduction zone
Subduction is a geological process in which the oceanic lithosphere is recycled into the Earth's mantle at convergent boundaries. Where the oceanic lithosphere of a tectonic plate converges with the less dense lithosphere of a second plate, the ...
and the source of the great
Lisbon earthquake of 1755
The 1755 Lisbon earthquake, also known as the Great Lisbon earthquake, impacted Portugal, the Iberian Peninsula, and Northwest Africa on the morning of Saturday, 1 November, Feast of All Saints, at around 09:40 local time. In combination with ...
.
"New 'embryonic' subduction zone found", ''Eurekalert'', June 17, 2013
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See also
* Geology of the Iberian Peninsula
The geology of the Iberian Peninsula consists of the study of the rock formations on the Iberian Peninsula, which includes Spain, Portugal, Andorra, and Gibraltar. The peninsula contains rocks from every geological period from the Ediacaran to t ...
References
Iberian Peninsula
Geology of Portugal
Geology of Spain
Geology of the Atlantic Ocean
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