Final answer:
Malala Yousafzai's memoir mentions the earthquake on October 8, 2005, a devastating event that impacted northern Pakistan and the Swat Valley, where she lived.
Step-by-step explanation:
Malala Yousafzai describes the earthquake that devastated her region in her memoir, 'I Am Malala: The Girl Who Stood Up for Education and Was Shot by the Taliban.' The earthquake she refers to occurred on October 8, 2005. It was a massive quake that hit northern Pakistan and the surrounding regions, including Malala's home in the Swat Valley. This seismic event is known as the Kashmir earthquake, and it registered a magnitude of 7.6, causing widespread destruction and loss of life.