爆発で

in the explosion

→ 爆発
phrase Rare #31,024
in the explosion で marks the explosion as the cause of what happened.
JA: 爆発で窓が割れた。
EN: The windows shattered in the explosion.

多くの人が爆発で死んだ。

Many people died in the explosion.

かなりの人が爆発で亡くなった。

A great many people died in the explosion.

その爆発で、施設は廃墟と化した。

The explosion reduced the facility to ruins.

屋根は爆発で吹き飛ばされた。

The roof was blown off by the explosion.