Tom Byrne, senior vice president for Moody's in Singapore, explains how he calculates whether a natural disaster affects a country's credit rating.

As Japan assesses the damage from a catastrophic earthquake last week, insurers across the globe begin to tally the cost of the disaster. Estimates put the cost to insurers at around $35 billion.

The cost of oil fell below $100 a barrel following Friday's quake in Japan. When the world's third largest importer of oil goes offline, demand for crude plummets.

As Japan struggles to control quake-damaged nuclear reactors, lawmakers and leaders express doubts over the future of global nuclear power.

The Japanese had invested more than a decade and hundreds of millions of dollars into an early-warning system that might have saved a number of lives today.

The Economist's bureau chief in Japan, Kenneth Cukier, talks about how Japan might recover from this earthquake economically.

Coco Masters, former Tokyo bureau chief for Time magazine, talks with Steve Chiotakis about what she felt when the earthquake hit Japan.

Phones lines to aid groups like the Red Cross are already ringing in the aftermath of a massive earthquake that struck Japan. What will the nation need exactly?

Bloomberg News reporter John Brisney experienced the Japanese earthquake first-hand. He talks with Steve Chiotakis about what it felt like and how Japanese companies are reacting.

Hawaii is under the threat of a tsunami after a massive earthquake hit Japan. Marketplace's Adriene Hill talks about what's going on in the state from her hotel in Waikiki.