A young Costa Rican prepares to carry his bike across a gap in the earth left by the killer quake that ravaged his country's coastal region Monday. About 30,000 people in Talamanca County face hunger, thirst and a threat of epidemics from the temblor, which cut the banana-producing area off from the rest of the country. The quake, which registered 7.4 on the Richter scale, killed 82 people and injured hundreds in Costa Rica and Panama. Many residents have built lean-tos and tents, and some sleep outside on the ground for fear their houses will cave in with the next tremor.