Strength of deadly Japan quake increased to 9.0

March 14, 2011

The U.S. Geological Survey has upgraded the magnitude of Friday's deadly earthquake in Japan to 9.0

The move Monday comes after Japan's Meteorological Agency did the same. It's not unusual for scientists to tweak the magnitude of a giant after some number-crunching.

U.S. government scientists originally put the quake at 8.9. The change to 9.0 means that the quake was about 1.5 times stronger than initially thought.

The Japan quake is now the fourth largest in the world since 1900 behind the 2004 magnitude-9.1 Sumatra quake.

Explore further: Fewer earthquake fatalities in 2005


Related Stories

Fewer earthquake fatalities in 2005

January 14, 2006

There were fewer deaths worldwide in 2005 due to earthquakes, but almost 90,000 casualties were reported, the U.S. Geological Survey reported.

High aftershock risk for Haiti in next 30 days: USGS

January 22, 2010

Earthquake-hit Haiti faces a high risk of possibly damaging aftershocks for at least 30 days and is set to suffer further tremors for months or even years to come, the US Geological Survey said Friday.

Chile quake in 'elite class' like 2004 Asian quake

February 28, 2010

(AP) -- The huge earthquake that struck off the coast of Chile belongs to an "elite class" of mega earthquakes, experts said, and is similar to the 2004 Indian Ocean temblor that triggered deadly tsunami waves.

7.7-magnitude quake hits off Indonesian island

October 25, 2010

(AP) -- A powerful earthquake hit off western Indonesia late Monday, briefly triggering a tsunami warning that sent thousands of panicked residents fleeing to high ground. There were no immediate reports of damage or injuries.

Quake moved Japan by 8 feet: USGS

March 13, 2011

Japan's recent massive earthquake, one of the largest ever recorded, appears to have moved the island by about eight feet (2.4 meters), the US Geological Survey said.

Recommended for you

Predictable ecosystems may be more fragile

October 7, 2015

When it comes to using our natural resources, human beings want to know what we're going to get. We expect clean water every time we turn on the tap; beaches free of algae and bacteria; and robust harvests of crops, fish ...

History shows more big wildfires likely as climate warms

October 5, 2015

The history of wildfires over the past 2,000 years in a northern Colorado mountain range indicates that large fires will continue to increase as a result of a warming climate, according to new study led by a University of ...

1 comment

Adjust slider to filter visible comments by rank

Display comments: newest first

1 / 5 (2) Mar 14, 2011
Tombstone read "Died in 8.9 magnitude (estimated) earthwake, latter revised to 9.0 (another estimate). All estimates are pee-reviewed".
Wonderful. And utterly useless to the dead. No seimoslogist has accurately predicted the time, place and strength of an impedding earthquake anywhere. However, their handwaving is pee-revewed, so they can lord over the astrologers and nutcases.

Please sign in to add a comment. Registration is free, and takes less than a minute. Read more

Click here to reset your password.
Sign in to get notified via email when new comments are made.