Zvitsuwa izvi zviri paNazca Plate (a tectonic plate), iyo iri kufamba kumabvazuva / kumaodzanyemba kwakadziva kumabvazuva, ichinyura pasi peSouth American Plate pamwero weanenge 2.5 inches (6.4 cm) pagore. Ichowo chiri pamusoro peGalapagos hotspot, nzvimbo iyo nyika yepasi iri kunyungudutswa kubva pasi ne mantle plume, ichigadzira makomo anoputika. Zvitsuwa zvekutanga zvakaumbwa pano angangoita mamirioni masere uye pamwe anosvika mamirioni makumi mapfumbamwe emakore apfuura. Nepo zvitsuwa zvekare zvanyangarika pasi pegungwa sezvavaifamba vachibva kumantle plume, zvitsuwa zvidiki, Isabela neFernandina, zvichiri kugadzirwa. Muna Kubvumbi 2009, mafashama emvura anoputika akatanga kuyerera kubva kuzvitsuwa zviviri zveNazca Plate kumabvazuva / kumaodzanyemba kwakadziva kumabvazuva, achinyura pasi peSouth American Plate pamwero ingangoita 2.5 inches (6.4 cm) pagore.
Zvitsuwa zvikuru 18