Earthquakes with a magnitude greater than or equal to 6 are termed strong earthquakes. 7 or larger are termed major earthquakes. Earthquakes greater than or equal to 8 are termed great earthquakes.
The term "large" is not actually used.However based on the above it could be argued that any earthquake with a magnitude greater than 6 is a large earthquake.
The Richter or local magnitude scale of the Haitian earthquake has been reported as 7.2. and the Moment magnitude as 7.0 (according to the U.S. Geological Survey, National Earthquake Information Center).Please see the related questions for further information about the Haitian earthquake and it's magnitude and severity.7.0 magnitutes
The Valdivia earthquake in 1960 was the strongest one ever recorded by man. It rated 9.5 on the moment magnitude scale and caused a powerful and destructive tsunami.
Earthquake magnitudes are rated using the moment magnitude scale. Moderate and small earthquakes (those with a magnitude below 7) are also measured using the Richter scale. Please see the related question for more information.
According to the US Geological Survey, the Chilean earthquake was rated at 8.8 on the moment magnitude scale. That makes it several hundreds times more powerful than the Haiti quake. Please see the related questions for further information.
The most recent Chilean earthquake mainshock occurred on the 27th of February 2010 and according to the US Geological Survey, rated at 8.8 on the moment magnitude scale. Chile has also suffered earthquakes in the past, including the largest earthquake ever recorded by seismometer which occurred on the 22nd of May, 1960 and had a magnitude of 9.5.
Between 6.8 and 6.9 Mw
The largest earthquake in the world was the 1960 Voldivic earthquake. It was the most powerful earthquake ever recorded. It rated 9.5 on the magnitude scale. It occurred in the afternoon.
The earthquake in Japan was a 9.0 magnitude earthquake. (After the quake hit, seismologists ranked it from an 8.9 to a 9.0.) The tsunami's height was recorded to be about 33 feet. Many counts say that the number is much higher, even as high as a 3-4 story building.
An earthquake that was rated 3 on the Richter scale would beignored
The massive earthquake that hit Japan was rated an 8.9 on the Richter scale, which means that it was very large, and very devastating. This earthquake was much more powerful than that of the earthquake in Haiti. The earthquake that hit Japan caused a tsunami, which has killed hundreds, and thousands are still missing. Information is still being gathered at this time.
yes they are
Moment to Moment - 1965 is rated/received certificates of: Finland:K-8 Sweden:15