Resources for recent earthquakes from Incorporated Research Institutions for Seismology http://www.iris.edu/ IRIS Chile http://www.iris.edu/hq/eqr#980

A large aftershock from the February 27th Magnitude 8.8 earthquake occurred on the subduction zone plate boundary at the Peru – Chile Trench where the oceanic Nazca Plate subducts beneath the continental South American Plate. This is one of the largest of over 200 aftershocks larger than Magnitude 5 that have occurred in the region.

2010-03-16T16:04:56+00:00 Chile http://www.iris.edu/hq/eqr#962

This earthquake occurred at the boundary between the Nazca and South American tectonic plates. The two plates are converging at a rate of 80 mm per year. The earthquake occurred as thrust-faulting on the interface between the two plates, with the Nazca plate moving down and landward below the South American plate. Coastal Chile has a history of very large earthquakes. Since 1973, there have been 13 events of magnitude 7.0 or greater.

2010-02-27T06:33:23+00:00 Recent http://www.iris.edu/hq/eqr#961

The Ryukyu Islands earthquake of February 26, 2010, occurred near the boundary that accommodates most of the relative motion between the Philippine Sea and Eurasia tectonic plates. In the region of the earthquake, the Philippine Sea plate moves WNW with respect to the interior of the Eurasia plate, with a relative velocity of approximately 60 mm/yr. The Philippine Sea plate subducts beneath the Eurasia plate at the Ryukyu Trench and is seismically active to depths of about 250 km. The initial estimates of the earthquake's epicenter, focal-depth, and focal-mechanism imply that the shock occurred as an intraplate event either within the subducting Philippine Sea Plate, or within the overlying Eurasia plate, rather than on the thrust-fault plate interface that separates the two, but preliminarily data do not clearly discriminate between these two possibilities. (USGS NEIC)

2010-02-27T06:24:52+00:00 Recent http://www.iris.edu/hq/eqr#945

This earthquake occurred north of the Mendocino Transform Fault, inside the Gorda plate, which is deforming as the Gorda Plate and Pacific plate slide past each other. The fault motion during the earthquake was strike-slip (side-by-side like the San Andreas Fault) with the Gorda Plate moving east and while the Pacific plate jumped west along the Mendocino Transform Fault.

2010-02-04T22:13:42+00:00 Haiti http://www.iris.edu/hq/eqr#918

A major earthquake occurred Tuesday in the boundary region separating the Caribbean plate and the North America plate. This plate boundary is dominated by left-lateral strike slip motion and compression, and accommodates about 20 mm/y slip, with the Caribbean plate moving eastward with respect to the North America plate.

2010-01-17T16:32:22+00:00 N. California http://www.iris.edu/hq/eqr#917

This earthquake occurred approximately 35 km WNW of Ferndale, CA in a deformation zone of the southernmost Juan de Fuca plate that is commonly referred to as the Gorda plate. The earthquake's epicenter is northwest of the Mendocino Triple Junction, which is formed by the intersection of the Mendocino fracture zone, the San Andreas fault and the Cascadia subduction zone. (USGS National Earthquake Information Center)

2010-01-17T16:31:29+00:00 Solomon Islands http://www.iris.edu/hq/eqr#916

The Solomon Islands earthquake of January 3, 2010, likely occurred at the boundary between the Pacific and Australian plates, where the Australian plate subducts beneath the Pacific towards the northeast at a rate of approximately 95 mm/yr. (USGS National Earthquake Information Center)

2010-01-17T16:28:56+00:00 Baja http://www.iris.edu/hq/eqr#915

The northern Baja California earthquake of December 30, 2009, occurred on the principal plate boundary between the North America and Pacific plate. At the latitude of the earthquake, the Pacific plate moves northwest with respect to the North America plate at 45 mm/y. (USGS National Earthquake Information Center)

2010-01-17T16:25:26+00:00 Queen Charlotte http://www.iris.edu/hq/eqr#914

A strong earthquake occurred on the Queen Charlotte transform fault.  The Pacific Plate moves north-northwest approximately parallel to the Queen Charlotte transform fault that connects the Explorer Ridge (an extension of the Juan de Fuca Ridge) with the Aleutian Trench.

2010-01-17T16:21:09+00:00 Fiji http://www.iris.edu/hq/eqr#913

The Fiji earthquake of 9 November 2009 occurred at the northern end of the inclined seismic zone that dips to the west beneath Tonga and Fiji. The broad-scale tectonics of the earthquake region are dominated by the relative convergence of the Pacific and Australia plates. At the latitude of the earthquake, the Pacific plate moves westward with respect to the interior of the Australia plate at a velocity of about 86 mm/yr. (USGS National Earthquake Information Center)

2010-01-17T16:17:42+00:00