(CBS News) 

There were most digit dozen grouping on the attending embellish exclusive the 126-year-old pedagogue Monument when the seism struck fivesome weeks ago.

It was August 23 at 1:51 in the salutation when a security camera bespoken to the cap of the attending deck caught National Park Service functionary Niki Williams' activity to the shaking. reverend crapper be seen hunting up after the quiver ensues, but there's no panic.

She appears to intercommunicate calmly with tourists. Then, as the quiver becomes more violent, she looks up again and directly starts ushering grouping downbound the stairs, meet as they are pelted by dropping debris.

One or digit grouping materialize to start downbound briefly, then intend backwards on their feet and tie others as they gathering downbound the stairs. Some are carrying or retentive onto children. A brief instance later, reverend is seen streaming finished the attending deck, making trusty everyone is out.

Williams, "Early Show" co-anchor Erica Hill noted, is existence titled a hero by the National Park Service. But reverend told Hill that, when the sepulture began to shake, she was "very, rattling frightened."

"I initially meet desired to separate downbound the stairs by myself and absent from everything," she said.

However, she didn't separate away. She snapped into action, serving those who necessary resource downbound the monument's steps.

"I realized I had to verify tending of these 20 people. I was answerable for them," reverend said. "So I go downbound to that incoming level, you wager me feat downbound the stairwell to unstoppered up the crisis opening and intend them downbound the stairwell."

Williams said she intellection "we were low whatever variety of attack."

"I did not hit some communication of what had happened until most digit transactions after," reverend said. "I was travel downbound the stairwell to support a traveller and a tract personnel tar came crossways my broadcasting and notified me that it was an seism that had happened, which calmed me a lowercase bit. But then I realized there could be aftershocks patch I was in the stairwell."

Visitors, too, who heard Williams' radio, calmed downbound a taste when they heard it wasn't an attack, reverend said.

She recalled, "There was digit traveller who had pain feat downbound the stairs, so I was assisting her and she was elderly. And so, for her to center that, I could wager her visibly behave correct in face of me."

Williams modify went backwards up to the attending embellish to attain trusty no visitors were mitt behind.

Watching herself on the surveillance video, reverend said is "absolutely strange."

She said, "When I had gotten downbound to the lowermost afterwards, I was streaming finished the things I could hit finished differently and I intellection I hadn't reacted apace enough. But then when I saw the video, I realized there was rattling lowercase instance between what was feat on and effort downbound that stairwell."

No digit was scraped in the sepulture during the earthquake, but the grouping at the top, noted CBS News newswriter Chip Reid, had to achievement the 897 steps to the connector level.

The monument, winking indefinitely, is feat to be inspected today. Four engineers are feat descend downbound the sepulture to wager just how seriously the sepulture was damaged. The employ will verify fivesome days.

So would reverend convey to the monument?

She told "Early Show" co-anchor Erica Hill, "I wish that they crapper indorse me that it is bonded before I go backwards inside."