This is the 3129th most frequent Turkish word.
depreminde
"During the earthquake" or "in the earthquake."
'Depreminde' here is used in locative form referring to 'during the earthquake'.
1999 yılında yaşanan büyük depremde insanlar büyük zorluklar çekti.
During the great earthquake of 1999, people faced great challenges.
Here, 'depreminde' indicates the condition during the event of the earthquake as part of the description.
Depreminde olduğumuz şehirde hasar çok büyük oldu.
In the city we were in during the earthquake, the damage was extensive.
In this sentence, 'depreminde' emphasizes the temporal context (during the earthquake).