dumb question
Yes. An earthquake may occur in the ocean.
No, they can't tell that it is a foreshock until a larger earthquake happens. (The largest main earthquake is called the mainshock)
to prepare for it and save lives
Aftershocks can occur hours or days after an earthquake.
I do not know but the earth shakes when a earthquake happens...
A tsunami is an ocean wave that is caused by an earthquake. It would occur after an earthquake.
A seismograph records an earthquake while it is happening, but as of yet there are no machines that can predict earthquakes.
i really dont know
2011, thats all i know, im tryna find out myself.
There may be a serious tsunami. or a mini after earthquake. you never know.
Major earthquakes are sometimes preceded by a smaller earthquake known as a foreshock. Foreshocks occur in the same region as the larger earthquake and can vary in magnitude. Not every major earthquake has foreshocks, but when they do occur, they may serve as a warning of the impending larger seismic event.
Small foreshocks that precede a major earthquake can occur