Which Comes First Aftershocks and Foreshocks?

While most aftershocks are smaller than the mainshock, they can still be damaging or deadly. A small fraction of earthquakes are followed by a larger earthquake, in which case the first earthquake is referred to as a foreshock.

Do foreshocks happen before an earthquake?

"Foreshock" and "aftershock" are relative terms. Foreshocks are earthquakes that precede larger earthquakes in the same location. An earthquake cannot be identified as a foreshock until after a larger earthquake in the same area occurs.

Do earthquakes have foreshocks and aftershocks?

Foreshocks are the energy release and ground shaking before an earthquake and aftershocks are the energy release and ground shaking after an earthquake. Foreshocks are before, aftershocks are after - makes sense! Foreshocks are less likely to do damage than aftershocks because they're smaller in magnitude.