اَللَّهُمَّ اعْفُ عَنَّا وَاحْفَظْنَا مِنَ الْفِتَنِ مَا ظَهَرَ مِنْهَا وَمَا بَطَنَ
Transliteration
Allahumma'fu 'anna wahfazna minal-fitani ma zahara minha wa ma batan
English meaning
O Allah, pardon us and protect us from trials, both apparent and hidden.
When is it recited?
During earthquakes and natural disasters.
Source
Classical supplication