natural disaster: An occurrence causing widespread destruction and distress; a natural catastrophe.
noun: The events which led to this natural disaster may be briefly told.
drought: a period of dry weather, especially a long one that is injurious to crops.
noun: Droughts are a direct result of increasing global temperatures.
earthquake: a series of vibrations induced in the earth's crust by the abrupt rupture and rebound of rocks in which elastic strain has been slowly accumulating.
noun: Heat and drought had continued for more than three weeks.