International leaders have pledged $3.8 billion over 18 months to help Haiti rebuild from a devastating earthquake.

Former U.S. Presidents Bill Clinton and George W. Bush, who are spearheading U.S. fundraising for Haiti, will be making their first joint visit to the Caribbean nation to assess recovery needs following January's devastating earthquake.

The U.N. regional assessor for natural disasters says Haiti needs $11.5 billion over three years to rebuild and transform the hemisphere's poorest nation after its catastrophic earthquake.

Earthquakes strike suddenly, and without warning. But, you don't have to be caught off guard. There are steps you can take to prepare you and your family before a quake hits.

Do you know what to do once an earthquake strikes?

Once the shaking stops, you need to know what to do to protect yourself from the damage caused by the earthquake.