Magnitude
Another word for an earthquake's strength is magnitude. Magnitude is a measure of the size of the seismic waves produced by an earthquake.
Magnitude
earthquake wave or shock wave
Tremble
Seismic waves is the usual description.
Another name for an earthquake is a temblor.
Magnitude is another term for the strength of an earthquake.
Are you thinking of aftershocks? If that's not the word you are looking for, then I am not sure, sorry :(
Earthquake = 地震
Another Earthquake was created on 2002-09-03.
The Greek word for earthquake is "σεισμός" (seismos).
Another name for the focus of an earthquake is the hypocenter of an earthquake. This is the strongest point in the earthquake, like the eye of the storm.