Aftershocks are small earthquakes that follow the first, main one. Aftershocks don’t always take place but should always be expected. Although these secondary shockwaves are usually less violent than the main earthquake, they can still do a considerable amount of damage to structures weakened by the main earthquake.

It is important to remember that aftershocks do not necessarily happen right after the main one. Aftershocks can occur minutes or hours after the earthquake, but can also hit weeks or even months after the initial quake. The most important thing is to expect aftershocks. Refill your emergency kits, food and water stocks, and be sure to know your earthquake plans and meeting spots.