Prince Harry was left shaken after a 4.2 magnitude earthquake hit Los Angeles just minutes after his last public appearance.
Omid Scobie, ABC News royal contributor and author of the new biography Finding Freedom, said that Harry "would definitely have felt it".
The Duke of Sussex, 35, delivered the opening speech at a virtual global summit for his sustainable tourism project Travalyst on Thursday.
Speaking by video link from his LA home, he urged the travel industry to "build back better" after the impact of the coronavirus pandemic.
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