New England Seismic Network News

March 11, 2011

Magnitude 9.0 – NEAR THE EAST COAST OF HONSHU, JAPAN – March 11, 2011

Filed under: Uncategorized — NESN @ 9:00 am

The NESN recorded the devastating magnitude 9.0 earthquake near the East coast of Honshu, Japan on March 11, 2011.  This is the largest recorded earthquake in Japan and the 5th largest earthquake recorded in the World.
Fires broke out at oil refineries, firefighters continue to battle a large fire at Cosmo Oil Co.’s refinery, 40 kilometers east of Tokyo.  Millions of homes are without electricity as utilities shut 11 nuclear power reactors.
For News:  CNN, Bloomberg

LATITUDE  38.322°N,  LONGITUDE  142.369°E
For more info on this earthquake, go to US Geological Survey report.
For a list of aftershocks of magnitude 5.0 and larger, go to Latest USGS Earthquakes.
For a tectonic summary, go to USGS Tectonic Summary.

A power point on the tectonics and details of this devastating earthquake and tsunami can be downloaded from the IRIS website here.
To download a PDF of this IRIS presentation, click here.

A tsunami was generated by this enormous quake and traveled miles inland Japan sending a massive body of water filled with debris that included cars, boats and houses.
The western Aleutian Islands, Alaska, were hit at 4 a.m. EST by a 5.1 foot wave.  Shemya, Alaska was reporting no damage despite the sizeable wave. By the time it reached the commercial fishing town of Dutch Harbor, the wave was just 1.6 feet.
For more tsunami info visit the Pacific Tsunami Warning Center.
For an animation of how the D.A.R.T. II deep ocean system works in assessing and reporting a tsunami, click here.


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