ちょうど彼が出かけようというときに大地震があった。

Just as he was going out, there was a great earthquake.

ちょうど彼(かれ)が出(で)かけようというときに大(だい)地震(じしん)があった。

Chōdo kare ga dekakeyou toiu tokini dai jishin ga atta.

丁度 (ちょうど)

just; right; exactly

彼 (かれ)

he; him; his; boyfriend

が (が)

indicates sentence subject (occasionally object); indicates possessive (esp. in literary expressions); but; however; still; and

出かける (でかける)

to go out (e.g. on an excursion or outing); to leave; to depart; to start; to set out; to be about to leave; to be just going out

と言う (という、とゆう)

called; named; as many as; as much as; all X; every X

時に (ときに)

by the way; incidentally; sometimes; occasionally

大 (おお)

big; large

地震 (じしん、ない、なえ、じぶるい)

earthquake

有る (ある)

to be (usu. of inanimate objects); to exist; to live; to have; to be located; to be equipped with; to happen; to come about

Readings: ヒ、かれ、かの、か.の

Meanings: he, that, the

Readings: シュツ、スイ、で.る、 -で、だ.す、 -だ.す、い.でる、い.だす

Meanings: exit, leave, go out, come out, put out, protrude

Readings: ダイ、タイ、おお-、おお.きい、 -おお.いに

Meanings: large, big

Readings: チ、ジ

Meanings: ground, earth

Readings: シン、ふる.う、ふる.える

Meanings: quake, shake, tremble, quiver, shiver