Listen to an Earthquake’s Eerie ‘Whale Songs’ - 1

Mountains of debris have piled up in Nepal's capital. Here, rescue workers search for survivors on Sunday in Bhaktapur, near Kathmandu.

Roads in and around Kathmandu were split apart as a result of the quake and its aftershocks. Here, Nepalese people inspect a crack made dangerously wide by the earthquake.

In Swyambhu, an area in Kathmandu, rescuers save a man from the rubble on Sunday. His friend, next to him, was killed.

An avalanche triggered by the earthquake struck a section of Mount Everest Base Camp on Saturday, just as the 2015 climbing season was beginning. At least 18 are thought be dead there, with helicopter evacuations underway.

In Bhaktapur, Nepal, a UNESCO World Heritage Site, a temple collapsed around a statue of the Buddha. Scores of other temples and religious sites have been reported destroyed. The exact toll of the damage is not yet known.

A relative of one of the victims identifies a dead family member in Bhaktapur, a town southeast of Kathmandu.

The body of a person killed in the earthquake lies ready for cremation on Sunday.

Nepalese families gathered in a field to cremate their family members near Bhaktapur, Nepal.

Two men search through debris in Bhaktapur as part of rescue efforts. Multiple aftershocks have shaken the area and complicated the arrival of supplies and personnel by aid organizations.

In a hospital in Kathmandu, a man named Suresh Parihar plays with his daughter Sandhya. Parihar was injured in the earthquake.

Buildings in and around Durbar Square, a site surrounded by ancient palaces that are listed as UNESCO World Heritage sites, collapsed as a result of the Kathmandu earthquake. Rescuers cleared the debris Saturday afternoon in the search for survivors.

People tried to free this man in Kathmandu Saturday even as aftershocks continued shaking the area.

The facades of buildings in Lalitpur District, on the outskirts of Kathmandu, fell into the streets on Saturday. Ripples from the earthquake were felt around all of Nepal and in several neighboring countries.

Some people who had been buried by falling debris were rescued as aftershocks continued to shake the region.

More than just government rescue workers contributed to the search and rescue effort in the hours after Saturday’s quake. These workers carry a woman who was injured after the historic Dharahara Tower in Kathmandu collapsed.

The Dharara Tower, a 14-story cultural landmark built in 1832, was reduced to a 33-foot (10 meters) stump after the quake. The tower had been open to visitors for the past decade.

Rescue workers set up clinics in the streets to respond to victims on Saturday.

A man passes near a collapsed temple near Durbar Square, the historic site of palaces in Kathmandu.

With hospitals overtaxed and in uncertain structural condition, injured people received treatment outside in the streets. The Red Cross said it had thousands of aid items available for deployment and more on the way from neighboring countries.

A man in Kathmandu surveyed the rubble in part of Kathmandu on Saturday. International aid officials said that the full extent of the damage and its death toll wouldn’t be known for days at least, or possibly much longer.