Anonymous
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Aftershocks ARE earthquakes.
Richter 8.6
There is no difference between an "earthquake" and an "aftershock". An aftershock is simply a weaker earthquake that follows the original seismic event.
The epicenter of aftershocks are not always in the same location as the original quake. Aftershocks are smaller quakes that occur as the displaced fault shifts to accommodate the effects of the main shock.
Had the second quake been stronger than the first, IT would have been denoted as the "earthquake", and the original one would have been relabeled a "foreshock".
Anonymous
Aftershock; these will continue for a few months and slowly diminish. It is normal for intense aftershocks to occur after a major earthquake. Note that aftershocks can be nearly as intense as the original quake.
Anonymous
It was an aftershock earthquake of the previous earthquake.
Mrs. C
Earthquake. Just saw it on tv .... it was not aftershock but an actual earthquake.