A deadly landslide that killed at least four children and injured several others in the Pima Medical Center has been confirmed as an April 21 earthquake, the U.S. Geological Survey (USGS) said on Monday.
The USGS said that the 6.7 magnitude earthquake, centered on the Pueblo area, was the third recorded in the county since January and the second in Arizona since 2000.
The USGS had not previously reported the landslide on social media.
The landslide happened in a remote section of the area near Pima College, where students and staff are studying the effects of climate change on the region.
The area was evacuated and a road was closed while emergency services worked to clear the area.
The area was later reopened after heavy rains.
The Pima County Emergency Management Office reported that the landslide killed at a family medical center and injured six children.
Three children were listed in critical condition with minor injuries, according to the USGS.
One of the children, a boy, was taken to the hospital with a head injury, the agency said.
The cause of the landslide is still under investigation, the USFSG said.
It was not immediately clear if the children were among the injured.