As rescuers in Italy comb through wreckage, searching for survivors of this week’s deadly earthquake, they have more to contend with: Aftershocks are rocking the region, as strong as magnitude 4.7.

Aftershocks present a problem for rescuers, working in a fragile situation. As they use heavy machinery — or even their bare hands — to sift through rubble, they risk their own safety.

Some are tweeting about living through the earthquake; others, offering up safety advice for the aftershocks.

Athough the initial 6.2-magnitude quake happened on the eastern side of the country, shocks could be felt all the way to Rome.

There have been some stories of hope, such as the story of a little girl that has gone viral. The girl, who many news outlets have identified as Giorgia, was rescued after being trapped for more than 15 hours.

The girl is then scooped up and walked past a line of rescuers. In another video, rescuers pulled a puppy out alive from the rubble.

Across the Atlantic from Italy, the spire of the One World Trade Center tower in New York City was lit up in red, white and green, honoring the victims of the earthquake.