Yes. There are nearly always aftershocks after a big earthquake.
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The two largest aftershocks from the Haitian earthquake had a magnitude of 6.0 and 5.9. The magnitude 6.0 aftershock occurred 7 minutes after the main earthquake on the 12th of January and the magnitude 5.9 aftershock occurred at 11:03 GMT on the 20th of January. Please see the related questions for more information.
The US Geological survey report that (as of the 5th of February, 2010) there have been 59 aftershocks of magnitude 4.5 or greater. Sixteen of which had magnitudes of 5.0 or above. The two largest aftershocks had a magnitude of 6.0 and 5.9. The magnitude 6.0 aftershock occurred 7 minutes after the main earthquake on the 12th of January and the magnitude 5.9 aftershock occurred at 11:03 GMT on the 20th of January. Please see the related question.
Following the Canterbury earthquake in 2010, there were thousands of aftershocks recorded in the region. The number of aftershocks gradually decreased over time, but the exact count is difficult to pinpoint due to the large number of seismic events that occurred in the aftermath of the main earthquake.
January 12, 2010
According to data produced by the US Geological Survey, the smallest aftershock was a magnitude 2 earthquake that occurred on the 13th of January 2010. It's epicentre was 18.55°N 72.78°W and it's hypocentre was 10km deep. Please see the related question for more information about the Haitian aftershocks.
No, the Haitian earthquake which occurred on the 12th of January, 2010 had a magnitude of 7.0. Please see the related question for more information.
According to the US Geological Survey the Haitian earthquake that occurred on the 12th of January 2010 had a magnitude of 7.0 on the moment magnitude scale. Please see the related links below.
The recent (2010) earthquake in Haiti occurred on Tuesday, January the 12th, 2010 at 21:53 UTC / GMT (or 16:53 Haitian time). For further information, please see the related questions.
The January 12 Haitian earthquake occurred at a longitude of 72 degrees West. According to the US Geological Survey the exact co-ordinates were 18.457°N, 72.533°W.
The hypocentre (the point within the Earth where the rupture actually occurred) of the January 2010 earthquake was located at a depth of 13 km below the surface.
The Richter or local magnitude scale of the Haitian earthquake has been reported as 7.2. However the Richter Magnitude Scale is no longer the formal scale used for reporting earthquake magnitude having been replaced by the Moment Magnitude Scale.As such, the official strength of the January 12, 2010, quake on the Moment Magnitude Scale was 7.0, as reported by 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.
The recent (2010) earthquake in Haiti occurred on Tuesday, January the 12th, 2010 at 21:53 UTC / GMT (or 16:53 Haitian time). For further information, please see the related questions.