normally 12-45 ft. deep. :P
As big as regular earthquakes.
Big Ben is in London, England which doesn't have a problem with earthquakes.
The earthquakes will be 90%-81% of the largest 40,000km long.
No only middle and big magnitude earthquakes do.
Big aftershocks.
sounds like a big thunderstorm
Earthquakes.
7.5
Earthquakes (big and small) happen so many times a day, it is impossible to put a number on it.
the seismograph
yes i think so
two big horrible one's