A week after Hurricane Maria devastated Puerto Rico , many of the millions of Americans with friends and relatives on the island still havent heard from their loved ones. As some desperately search for answers on social media, others have tried to channel their nervous energy toward coordinating relief from the U.S. mainland.

Melina Olmo, president of the National Conference of the Puerto Rican Women chapter in Washington, D.C., hasnt spoken to her 70-year-old mother and 43-year-old sister in Utuado, Puerto Rico, since Sept. 19 at 9:21 p.m. just before the Category 4 storm slammed into the island. Olmo has since been posting photos and information about her family on Facebook , hoping someone will find them.

I have not been able to get a full nights sleep since the storm, Olmo, 41, told HuffPost. I keep waking up every two hours, just waiting for the phone to ring, for a text, for some divine sign that they are OK.

Olmo tried to brief her family on the news during their last phone conversation. Their power had just gone out and my sister did not have time to pay her cellphone, Olmo said. She was concerned they would cut it off.

Utuado , the mountain town where Olmos family resides, is 65 miles from the islands capital, San Juan, and has been ravaged by landslides that have blocked roads. The nearby Viv River is overflowing , and a lack of basic resources like clean water, gas and medicine have created a desperate situation.

Utuados plight is typical of the islands towns. Maria, which killed at least 16 people , left all of Puerto Rico without power and took out most wireless cell sites. The lack of communication has hindered relief efforts and makes it impossible to fully assess the impact of the storm. Although some residents, mostly near San Juan, have found ways of communicating with loved ones in the U.S. mainland via radio, word of mouth and a few working landlines, many in the Puerto Rican diaspora have yet to hear from family on the island.

Here are some of their stories.

Every day that passes is a day I dont hear from them.

In Miami, Jazmin Nadal is desperate for information about her 60-year-old mother and 67-year-old father, who live in Las Marias , approximately 80 miles west of San Juan.

The west coast right now has no communication, and theres no way to get to them either because a lot of the roads have been blocked, Nadal, 31, said. Its now been a week and still nothing. ... Im able to leave voicemails on my moms phone with status updates and where they can go to get food and water, but I dont know if shes receiving them, she added via Facebook messenger on Wednesday.

I feel scared because I keep hearing people say Its OK and Im like yea but every day that passes is a day I dont hear from them, Nadal said. Im not sleeping well, Im cranky, Im distracted at work because Im looking at my phone thinking maybe today they call me from a satellite phone and Ill be able to have a quick conversation with my parents.

News from Las Marias has been scarce, with local newspapers reporting that landslides and road damage have blocked trucks from entering and leaving the municipality with supplies. This only heightens Nadals fears.

What if something happens? God forbid, she asked. Who is going to get to them? No one. Theres no way for them to get an ambulance or police or anything. I cant go, I cant fly in, I cant risk driving into the countryside to try to help them out when I dont know what the situation is. I dont know if there is any roads or if Im putting myself also in danger trying to help them out. Im severely stressed.

Nadal and her brother have seriously considered flying to Puerto Rico to search for their parents, but shes been told by people on the island that worried relatives shouldnt come, lest they add to the scarcity of fuel and other supplies. Instead, islanders suggest people on the mainland help coordinate aid.