Which is why the lost art of letter writing is being encouraged. Each day family members take time out to write with personal news, rescue operation updates, and simple words of encouragement.
Wife of Trapped Miner Says He Gains 'Strength from God'
Yessica Cortez, three months pregnant, knows how important the letters have been to her husband, Victor Zamora.
"He's not used to being closed in," she said. "I don't think anyone is accustomed to being enclosed for more than a month half a mile underground.
"You have to have a lot of strength to be down there. I think he gets his strength from God. It's a test."
Silvia Segovia's brother Victor is trapped below, along with two of their cousins. She cherishes each letter he sends up.
She read part of one letter from her brother to ABC News: "Hi Silvia, you've given me so much support, I'll always be grateful… in the past I haven't been very affectionate with the people close to me. I want you to know that you are a very good sister."
Elizabeth Segovia's husband, Ariel, is one of the 33, but she has been unable to stand vigil with the other family members, as she has been in the final weeks of her pregnancy with the couple's third child.
They'd originally planned to name the baby, their first daughter, Carolina. But with Ariel still trapped in the mine, they instead decided to name her Esperanza, which means "hope."
Esperanza Elizabeth Ticona was born at noon today, a local newspaper reported this afternoon.
The family recorded Esperanza's birth on video and they hope to transmit it to Ticona in the mine.
Segovia said she dreams of the day her family will be reunited. "I've imagined so many things for that day," she said, "I'll be the first to embrace him, I'll be there at his side."
Watch the full story on "Nightline" tonight at 11:35 p.m. ET