REYKJAVIK, Iceland  The collapse came so fast it seemed unreal, impossible. One woman here compared it to being hit by a train. Another said she felt as if she were watching it through a window. Another said, “It feels like you’ve been put in a prison, and you don’t know what you did wrong.”

This country, as modern and sophisticated as it is geographically isolated, still seems to be in shock. But if the events of last month  the failure of Iceland’s banks; the plummeting of its currency; the first wave of layoffs; the loss of reputation abroad  felt like a bad dream, Iceland has now awakened to find that it is all coming true.

It is not as if Reykjavik, where about two-thirds of the country’s 300,000 people live, is filled with bread lines or homeless shanties or looters smashing store windows. But this city, until recently the center of one of the world’s fastest economic booms, is now the unhappy site of one of its great crashes. It is impossible to meet anyone here who has not been profoundly affected by the financial crisis.

Overnight, people lost their savings. Prices are soaring. Once-crowded restaurants are almost empty. Banks are rationing foreign currency, and companies are finding it dauntingly difficult to do business abroad. Inflation is at 16 percent and rising. People have stopped traveling overseas. The local currency, the krona, was 65 to the dollar a year ago; now it is 130. Companies are slashing salaries, reducing workers’ hours and, in some instances, embarking on mass layoffs.