Sūrat az-Zalzalah (Arabic: سورة الزلزلة, "The Quake") is the 99th sura of the Qur'an, composed of 8 verses. Though it is usually classified as a Medinan sura, the period under which the sura was revealed is not unanimously agreed upon by Qur'anic exegetes.
The sura begins by describing how on the Day of Judgment, the Earth will give off a terrible earthquake and "throw up her burdens". Through the inspiration of God, the Earth will bear witness to the actions of men it has witnessed. According to Michael Sells, the earth opening up and bearing forth her secrets in this sura is indicative of a birth metaphor. The earth al-'Ard in the feminine gender bears forth of how her lord revealed the final secret to her. Human beings will then realize that the moment of accountability has arrived. This meticulous accountability will reflect good and evil deeds that might have seemed insignificant at the time.