Placche Tettoniche. Dove si trovano le Placche (litosferiche) tettoniche? (ITALIAN) @IRISEarthquakeScience

Uploaded May 2019 | Updated September 2026, 2 weeks ago

www.iris.edu/earthquake
Lo strato esterno, rigido e freddo della Terra, chiamato litosfera, è frammentato in placche massicce. Le placche più grandi, all’incirca dodici, e diverse placche più piccole, si muovono continuamente, urtano, scivolano le une sotto le altre o scorrono le une rspetto alle altre in un processo chiamato tettonica a placche. In questo video illustreremo come e dove si originano le placche tettoniche, in quali modi possono entrare in contatto e come si distruggno.
entrare in contatto e come si distruggno.

Traduzione e narrazione: Marina Corradini, PhD Candidate, Institut de Physique du Globe de Paris; Divulgatrice Scientifica, 'Cité des Sciences et de l’Industrie de Paris'
Animazioni e grafica: Jenda Johnson, Geologo, Earth Sciences Animated
Revisione: Dr. Robert Butler, Geofisico, Università di Portland, OR, e
Dr. Wendy Bohon, Specialista in Comunicazione Scientifica, IRIS
Localizzazione di terremoti estratti dal Browser Interattivo di IRIS (www.iris.edu/ieb)
Mappa tettonica e sezioni trasversali modificati a partire dalle immagini del Servizio Geologico degli USA.
Analogia ‘barretta ai cereali / Big Hunk’ di Dr. Robert Butler
Animazione della Faglia di San Andres: Tanya Atwater
Foto, immagini di NOAA, USGS, NASA
Realizzato con il supporto della Fondazione Nazionale per la Scienza.

Placche Tettoniche. Dove si trovano le Placche (litosferiche) tettoniche? (ITALIAN)

$Hydraulic Fracturing Induced Seismicity—Dr. Rob Skoumal, USGS (IRIS Webinar) www.iris.edu Presented by: Dr. Rob Skoumal, Mendenhall Postdoctoral Fellow, USGS - Menlo Park Abstract: Prior to 2015, there were only a handful of documented cases of hydraulic fracturing induced seismicity in the world. More recent research has demonstrated hydraulic fracturing induced seismicity is more common than previously thought and has included damaging earthquakes. In China, hydraulic fracturing induced earthquakes have caused millions of dollars in property damage and may have resulted in fatalities. Hydraulic fracturing in Canada has caused earthquakes as large as M 4.6. We have found that hundreds of stimulations in Oklahoma have induced M greater than 4 earthquakes. Given the sequences in China and Canada, should we expect M greater than 4 earthquakes to be induced in the United States in the future, or have they already occurred? How can we reduce the likelihood of these events happening? What could we expect to happen in the future? With a focus on the United States, I will discuss a wide range of successes and ongoing challenges related to hydraulic fracturing induced seismicity. Hosted by the Incorporated Research Institutions for Seismology www.iris.edu$

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