No only middle and big magnitude earthquakes do.
Tsunami's can be triggered by earthquakes that happen underneath the ocean floor.
Earthquakes are like a shock
Yes
The earthquake that follows the major shock is the aftershock. Technically, there can be lots of them,happening hours, day, weeks, even months after the initial shock.
7.5
A main shock is the largest earthquake in a sequence of earthquakes that occur in a specific region and time period. It is usually followed by aftershocks, which are smaller earthquakes that happen in the same area. The main shock can cause significant damage and is often used as a reference point for measuring the intensity of earthquakes in that sequence.
I'm assuming you know how earthquakes occur and all an aftershock is a smaller earthquake after a larger one. If the "aftershock" is larger than the main shock it is reclassified as the main shock and the previous "main shock" becomes a foreshock.
Seismic waves or tremors
these are calle "aftershocks"
Earthquakes can produce a variety of sounds before the main shock wave, such as rumbling, cracking, or grinding noises. These sounds can be caused by the movement of rocks along fault lines underground or the shifting of the earth's crust. It's important to note that not all earthquakes produce audible sounds before the main shock wave.
earthquakes :)
It is a shock wave +++ Well, yes, an earthquake is a series of shock-waves, but I'm puzzled by what the question really means. The main tremor is often followed by smaller "after-shocks".