In The Tsunami Aftermath, Efforts Are Focused On New Defenses

Yamada, Japan -- Just over a month after the worst natural disaster in modern Japanese history, scientists and researchers are still trying to piece together the mystery of exactly how and why some areas were wiped out by tsunami and others escaped.

International teams of geologists are mapping out the geological causes and complex effects of the March 11 tsunami waves triggered by a magnitude-9.0 quake off the eastern coast of Japan.

More than 13,000 people died in the tsunami and another 14,000 are still missing and feared washed to sea, including a dozen residents of Yoriso in Miyagi prefecture.

The small fishing village juts out on a peninsula, making it the closest populated point to the epicenter of the quake, and one of the first places to be hit by the tsunami waves.

Rumi Endo, a 17-year-old high school student now sheltered in the village elementary school recounted the terror she felt after rushing to high ground as the tsunami siren sounded.