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Just when you thought we couldn't get enough of Tufts, we stumbled across a new set of specimens from our neighbor in Somerville: admissions videos from high school applicants for Tufts' Class...
Because the Ring follows the coastlines of Pacific Ocean, almost any major quake can also produce a tsunami, a powerful wave that travels from the epicenter of the temblor across the ocean basin. That's what happened in 2004, when a 9.3-magnitude quake off the Indonesian island of Sumatra triggered a devastating tsunami, and that's is what's likely to happen following today's 8.8-magnitude quake off the coast of Chile. (See the latest photos of the earthquake in Chile...
...lines in the region, where the underwater Nazca Plate in the Pacific gradually submerges beneath the westward moving South American plate. The border between these two plates is known as a thrust fault, and the sudden rubbing of the plates against each other resulted in an earthquake that ripped across an estimated 400 miles of the fault. With a Richter scale magnitude of 8.8, the Chilean quake was nearly 1,000 times stronger than the temblor that hit Haiti last month...
...plates shake, they push the water above them up, creating the beginning of a wave, not unlike dropping a stone in a bathtub. The wave then travels away from the epicenter of the quake. In the case of the Chile temblor, the waves are moving in a northwest direction across the Pacific, putting nearly every shoreline along the ocean at some risk...
...waves travel at roughly the speed of a passenger jet, but because of the vast distance they are traveling across the Pacific from Chile's coast, vulnerable islands hours to prepare. That wasn't the case during the 2004 tsunami, which rippled across the much smaller Indian Ocean basin before there was time to raise a proper warning...