houses and peoples lives
Aftershocks are smaller earthquakes that occur after a larger earthquake in the same area. They are a result of the earths crust near the fault rupture readjusting as a result of the main earthquake (also known as the "main shock").
there was 13 aftershocks after the earthquake in haiti
It is said there was thousands of aftershocks after the 1994 Northridge earthqauke about 30 km east of LA (Los Angeles). A 5.9 aftershock occured almost one minute after the original earthquake. About 11 hours later another one occured.
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.
The Valdivia earthquake of 1960 experienced numerous aftershocks, estimated to be around thousands. These aftershocks lasted for several weeks and some even continued for years after the main earthquake.
52 aftershocks.
There were thousands of aftershocks following the 1960 Chile earthquake, which was the most powerful ever recorded. Some of these aftershocks were significant earthquakes in their own right and caused further damage and loss of life.
houses and peoples lives
There was 8 aftershocks
Approximately 1,000-1,500 people were killed in the Great Chilean Earthquake that occurred on May 22, 1960.
Chile lies on the boundry of two techtonic plates, the South American plate and the Nazca plate. It has experienced many earthquakes. The two most notable are the 1960 Great Chilean earthquake also know as the Valdivia earthquake. It was the largest earthquake ever measured and recorded. It was also the location for the 5th largest recorded earthquake, the 2010 Chilean earthquake of February 27th, 2010.
400
These smaller earthquakes are called aftershocks. Aftershocks can often be as strong as the earthquake its self and there can be many.
The 2004 Indian Ocean earthquake resulted in thousands of aftershocks. Some sources estimate there were over 50,000 aftershocks following the main earthquake, with magnitudes ranging from 4.0 to 7.3.
There were numerous aftershocks following the Chile earthquake, with the strongest ones occurring within the first few days. The exact number of aftershocks can vary depending on the source, but there were hundreds reported following the main earthquake event.
More than 50 aftershocks all measuring about 4.9