Volcanic ash blankets a home destroyed by the Volcan de Fuego, or "Volcano of Fire", eruption, in Escuintla, Guatemala.
The new explosion took many by surprise after volcanologists said the eruption, which had sent ash up to 10km into the sky on Sunday, was over for the near future.
Hernandez lost 36 family members in all, missing and presumed dead in the town of San Miguel Los Lotes after the fiery volcanic eruption of the Volcan de Fuego, or Volcano of Fire, in south-central Guatemala.
More than 3,000 people have been evacuated with more than 1,700 in shelters.
After a drone survey, police managed to reach a farm where a home had been buried and people were believed to have been trapped inside. There are many people who are helping us, but we have absolutely nothing. Rescuers were evacuated from those areas with the new flows Tuesday afternoon.
National disaster agency CONRED ordered evacuations and said that hot gas and molten rock were streaming from the volcano. He said he wanted to express his "consolation to families who are weeping for the loss of their loved ones, as well as spiritual closeness to the wounded and those who are working to help".
A man whose rescue in the town of El Rodeo was shown on video as he was pulled out caked in mud with third-degree burns over 50 percent of his body died at a hospital today, the country's Social Security Institute said.
"Fuego is a very active volcano".
The scenes of devastation were accompanied by heartbreaking stories of whole families that were devastated by the disaster - the biggest eruption from the mountain in four decades.
It said the lahars could sweep down the mountain laden with concrete, rocks up to a meter (yard) in diameter and tree trunks.
Only 17 of the bodies recovered so far have been identified due to the extreme heat that charred their features and burned off fingerprints, and authorities hope other means such as DNA testing can help.
Lacking electricity in the hardest hit areas, emergency crews were carrying out rescue efforts during daylight hours and calling them off for safety reasons when darkness fell.
Guatemala's National Institute of Seismology head Eddy Sanchez had predicted "no imminent eruption over the next few days".