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A magnitude 9.0 earthquake has occurred near the
east coast of Honshu, Japan, as a result of thrust faulting on or near
the subduction zone interface plate boundary between the Pacific and
North American plates. This page collects many disparate data
visualizations from across the websphere.
Event parameters (from USGS)
Magnitude
9.0
UTC Time
Friday, March 11, 2011 at 05:46:23 UTC
Local Time
Friday, March 11, 2011 at 02:46:23 PM at epicenter
Location
38.322°N, 142.369°E
Depth
24.4 km (15.2 miles)
Region
NEARTHEEASTCOAST OF HONSHU, JAPAN
Distances
130 km (80 miles) E of Sendai, Honshu, Japan 178 km (110 miles) E of Yamagata, Honshu, Japan 178 km (110 miles) ENE of Fukushima, Honshu, Japan 373 km (231 miles) NE of TOKYO, Japan
A magnitude 9.0 earthquake has occurred near the east coast of
Honshu, Japan, as a result of thrust faulting on or near the subduction
zone interface plate boundary between the Pacific and North American
plates. This earthquake generated a tsunami, and a tsunami warning was
issued throughout the Pacific.
Data Links
Numerous websites have been developed that provide access to the
extensive information resources related to this earthquake. The emphasis
of this page is on seismological data, products and early results. In
addition to direct links to data and materials available from IRIS programs, this page includes a compilation of preliminary research results from the seismological community.
IRIS Education and Public Outreach and the
University of Portland have established routine procedures to develop a
set of “Teachable Moments” which provide a short summary of the latest
major earthquake within a few hours to one day after an event. Prepared
by seismologists and educators, “Teachable Moments” include powerpoint
slides, .pdf presentations and animations.
First five days of aftershocks from the March 11, 2011 M9.0 earthquake in Japan (mp4 video).
Note that there have been so many aftershocks that not all have yet been located. Earthquake data from the NEIC website.
Cumulative seismic moment estimated for shallow earthquakes. Modified from Ammon et al., SRL
2010 – moment magnitude values assumed for the largest earthquakes were
(9.0, 1952), (9.5, 1960), (9.2, 1964), (9.15, 2004), (9.05, 2011) and
extended to the present using magnitude estimates from the US Geological
Survey and the Global Centroid Moment Tensor Project (Harvard &
Columbia Universities).
