taihuu no yoru, tikaku no hinanzyo ni hinansita kazoku mo imasita.

Here, の connects two nouns: 台風 and 夜.

• 台風 = typhoon
• 夜 = night

So 台風の夜 means something like:

• the night of the typhoon
• the typhoon night
• more naturally, on the night of the typhoon

This is a very common use of の in Japanese: noun + の + noun.

Examples:

• 雨の日 = a rainy day / a day of rain
• 夏の朝 = a summer morning
• 学校の先生 = the school’s teacher / a teacher at school

近く means nearby / near / the vicinity. It can act like a noun-like word, and when it modifies another noun, it often takes の.

So:

• 近く = nearby area / vicinity
• 近くの避難所 = the nearby evacuation shelter

This is why it is 近くの, not 近い避難所 here.

Both can be possible in some contexts, but they feel a little different:

• 近くの避難所 = the shelter nearby / a nearby shelter
• 近い避難所 = a shelter that is close

In everyday Japanese, 近くの + noun is very common.

The particle に marks the destination of movement here.

• 避難所に避難した = evacuated to a shelter

Since 避難する can describe moving to a place of safety, に shows where the family went.

Compare:

• 学校に行く = go to school
• 家に帰る = return home
• 避難所に避難する = evacuate to a shelter

So 避難所に is simply to the shelter.

Because it is modifying 家族.

In Japanese, a verb in plain form can come before a noun and describe it. This is called a relative clause.

So:

• 避難した家族 = the family who evacuated / families that evacuated

More fully:

• 近くの避難所に避難した家族 = families who evacuated to a nearby shelter

Japanese does not need a word like who, that, or which here. The verb phrase just goes directly before the noun.

Examples:

• 昨日来た人 = the person who came yesterday
• 本を読んでいる学生 = the student who is reading a book
• 日本で作られた車 = a car made in Japan

Yes. They both come from 避難, which means evacuation or taking refuge.

• 避難する = to evacuate / to take shelter
• 避難した = evacuated / took shelter
• 避難所 = evacuation shelter / refuge shelter

So the sentence uses the same core word twice, but in different forms:

• 避難所 = the place of evacuation
• 避難した = the action of evacuating

This kind of repetition is very normal in Japanese and does not sound strange.

も means also / too.

So 家族もいました suggests that these families were also among the people who were there. It implies that the speaker may already have mentioned other people, and now adds families who evacuated to shelters as another group.

So the nuance is something like:

• There were also families who evacuated to a nearby shelter.

Without も, it would be more neutral:

• 家族がいました = there were families

With も, it sounds additive:

• 家族もいました = families were there too / there were also families

いました is the polite past form of いる, which is used for the existence of people and animals.

Since 家族 refers to people, Japanese uses いる rather than ある.

• 人がいる = there is a person / people are there
• 犬がいる = there is a dog
• 本がある = there is a book
• 避難した家族もいました = there were also families who evacuated

So the sentence is not just describing an action. It is presenting the existence of that group in that situation.

Both are possible, but they mean slightly different things.

• 家族がいました = there were families
• 家族もいました = there were families too / also

The choice of も shows addition or contrast with something already understood from context.

For example:

• ホテルに泊まった人もいました。避難所に避難した家族もいました。 = Some people stayed at hotels. There were also families who evacuated to shelters.

So も is not replacing が randomly; it adds the nuance of also.

Japanese nouns usually do not show singular/plural explicitly.

So 家族 can mean:

• a family
• families

Here, because the sentence talks about existence in a broader situation and uses もいました, it often feels natural in English to translate it as families. But the Japanese itself does not force a plural form.

This is very common in Japanese:

• 学生がいました = there was a student / there were students
• 子どももいました = there was also a child / there were also children

The exact number comes from context, not from the noun form itself.

A good way to break it up is:

• 台風の夜、 = on the night of the typhoon,
• 近くの避難所に避難した家族 = families who evacuated to a nearby shelter
• もいました。 = were also there / also existed

So the structure is roughly:

[time expression], [noun modified by a relative clause] + も + いました

In other words:

1. set the time
2. describe the group
3. say that this group also existed / was present

This is a very common Japanese sentence pattern.

Japanese often leaves the subject or topic unstated when it is clear from context.

This sentence is an existential statement: it tells us that a certain kind of people existed in that situation.

Because of that, Japanese does not need to say something like:

• その夜は
• 人々は
• 被災者の中には

Even though English often prefers a clear subject, Japanese frequently omits it when the context already provides it.

So the sentence naturally focuses on introducing one group:

• families who evacuated to a nearby shelter also existed

That is why the sentence can sound complete without an explicit topic marker like は.

In this sentence, 避難した is the plain past form modifying 家族, so it describes the family that evacuated.

Inside relative clauses, the Japanese past form does not always map perfectly to English past tense in a strict timeline sense. It often just identifies the noun by a completed action.

So:

• 避難した家族 = the family/families who evacuated

It does not necessarily emphasize before that night. Since the whole sentence begins with 台風の夜, the natural reading is that this happened in that situation, on that night.

This is similar to:

• 昨日会った人 = the person I met yesterday
• 駅で見た子ども = the child I saw at the station

The past form helps identify the noun through a completed event.

To an English speaker, it can seem repetitive because it is close to saying evacuated to an evacuation shelter.

But in Japanese, this is completely natural.

• 避難所 is a fixed word meaning evacuation shelter
• 避難する is the standard verb meaning to evacuate / take shelter

Japanese often allows this kind of repetition when the noun and verb are standard expressions.

A translator might smooth it out in English, but the Japanese itself is normal and clear.