At least 10 people were killed and serious damage is reported all around Taiwan.

Ian Lee is tracking the intense rescue effort.

Commuters were traveling to work when the 7.4 magnitude earthquake struck Taiwan Wednesday.

Boulders came crashing down the mountain, hitting one car and nearly avoiding another.

Rescue crews now search for survivors.

Over a thousand have been injured, while more than a hundred are still missing, many among the island's mountains.

Up a remote valley, a drone discovered these miners stuck on a cliff.

Landslides wiped out all the roads.

But the epicenter witnessed the most severe damage.

CBS's partner, the BBC, is on the ground.

This building is one of them that partially collapsed during yesterday's quake.

You can see it's leaning over at a very precarious angle.

They're worried that an aftershock could bring the whole building down.

So they are reinforcing the base there to stabilize it while operations to go inside and search the building carry on.

The tremor struck as children started their school day.

American Kevin Geiger's 8-year-old daughter was in class.

The teacher said, "Go under the table, go under the table."

So when the earth started shaking, did you know exactly what to do?

Because we had the orange hat in our desk, so we took it out and put it on her head.

I was really happy that she was, like she said, being calm and not freaking out, right?

Important not to freak out, right, Claire?

Yeah.

Claire is a brave little girl.

And this morning, Taiwan is still experiencing more aftershocks.

Claire told me she's not scared because her school taught her what to do.

Gail.

Yeah, lesson well learned.

You go, Claire.

Thank you, Ian.

Crews in Taiwan are searching for survivors from yesterday's massive earthquake.

That's right.

Emergency workers.

This is the good news; they found dozens of survivors stranded in a tunnel.

Unfortunately, though, there are more people still missing at this hour.

The 7.4 magnitude quake killed at least 10 people, injured more than 1,000.

Officials say roughly 50 residential buildings there are damaged.

CBS News foreign correspondent Ian Lee is following all of this for us from our London bureau.

Ian, what more can you tell us about the search and rescue efforts still underway?

Yeah, Errol, right now, a lot of the rescue operations are focused in the mountains.

Dozens of people are still missing there after that strongest quake in decades.

And we've seen search teams scouring through landslides looking for missing hikers.

One video shows rescue crews walking through a valley as rocks were still falling.

Another showed miners stranded on a cliff after the tremor destroyed roads leading to them.

Rescuers are also trying to clear these roads and tunnels to get to them.

There are reports that scores of people are trapped at remote hotels.

And of course, they're still looking for the dead.

As you pointed out, 10 people have tragically been killed.

And given what we're seeing there, Ian, 10 people killed actually seems like a smaller number than people might expect.

I mean, those those roads completely wiped out buildings on their side.

How was Taiwan prepared for this earthquake?

Alana, let me give you a stark comparison between a country that is prepared and a country that isn't.

Last year, Turkey and Syria were hit by a magnitude 7.8 earthquake.

The two countries were not prepared, and more than 55,000 people were killed.

Yesterday, Taiwan was hit by a similar quake.

And as we have been talking about, the death toll currently stands at 10.

And that's because the country upgraded its infrastructure, following a devastating earthquake back in 1999.

Since then, the country's been preparing for the next big one.

They built stronger buildings.

They established better building codes.

Rescue teams also train on a constant basis.

And the people were also prepared.

I spoke to an American family, the Geigers, who told me how they received an early warning on their phone just before the earthquake hit.

Their eldest daughter, Claire, said she wasn't scared because they practiced for this at school.

She followed her teacher's instructions.

She put on a special cushioned hat to protect her from any falling debris.

And they hid under their desks.

And it's just this preparation over the past two decades that really helped save lives.

Yeah.

Claire sounds well-prepared, but also brave.

Ian Lee, thank you.

(Speaking in French)

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