Facebook and Google have added new services to help coordinate search and rescue efforts in the aftermath of the 7.8-magnitude earthquake that hit Nepal and small parts of China and India on Saturday.
Facebook has activated its "Safety Check" feature in response to the earthquake in Nepal. The feature, launched in October, allows users to tell friends and family they are safe if they are in the middle of a disaster area.
Facebook engineers in Japan started development on the feature after the 2011 Japan earthquake and tsunami.
The Kathmandu earthquake was one of the first natural disasters where it has been used.
Google, which lost an employee in an avalanche as a result of the earthquake, has activated its own disaster tool called "Person Finder" and is updating satellite imagery to help with relief efforts.
Google is also donating $1 million toward relief efforts, the company said.
