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The earthquakes are caused by slip along the thrust fault that forms the contact between the two plates. These interplate earthquakes are the planet's most powerful, with moment magnitudes (M w) that can exceed 9.0. [1] [2] Since 1900, all earthquakes of magnitude 9.0 or greater have been megathrust earthquakes. [3]
M w [59] Doublet earthquake rupturing an outer rise normal fault and the megathrust. [60] 2009 Samoa earthquake and tsunami: 27 February 2010 03:34 (local time) Maule Region, Chile: 550 8.8 M w [61] Including 25 missing. 2010 Chile earthquake: 11 March 2011 14:46 (local time) Tohoku region, Japan: 22,312 9.1 M w [62] Including 2,553 missing.
Download as PDF; Printable version; In other projects Wikidata item; Appearance. move to sidebar hide. Help ... Megathrust earthquakes in the United States (1 C, 2 P)
Note: earthquakes included for this category are quakes along subduction zones of 8.0 magnitude or greater. Subcategories This category has the following 6 subcategories, out of 6 total.
The 'MHT' is a known hazard and potential source for large earthquakes of magnitude 9.0 or greater. The MHT is also associated with other large 20th century earthquakes in 1950 (M w 8.7) and 1934 (M w 8.4). Within the last thousand years, multiple earthquakes have occurred with magnitudes of at least M w 8.0, as deduced by paleoseismology.
Their work will give modelers a sharper view of the possible impacts of a megathrust earthquake there — the term for a quake that occurs in a subduction zone, where one tectonic plate is thrust ...
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On Dec. 26, 2004, a 9.2-magnitude earthquake shook Southeast Asia, triggering the worst tsunami in recorded history. According to United Nations estimates, more than 220,000 people were killed ...