Ecuadorian military and civilians perform cleanup and rescue operations on the streets of Portoviejo on Monday following a powerful earthquake on Saturday. Rescuers and desperate families clawed through rubble, pulling out survivors two days after an earthquake that has killed more than 400 people and devastated a tourist region of Ecuador. Juan Cevallos/AFP/Getty Images hide caption

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Julia Symmes Cobb: Beach Towns Hardest Hit In Ecuador's Weekend Earthquake
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In a photo from March 2011, then-U.S. Ambassador to Japan John Roos visits the Tohoku region, hardest hit by the tsunami and earthquake. He and his team then started the Tomodachi (Friends) Initiative to help young survivors. Ben Chang/Courtesy of John Roos hide caption

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After Tsunami And Quake, A U.S.-Japan Partnership To 'Give Hope'
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Blue cans, seen sandwiched between layers of concrete, are visible at the Golden Dragon complex, which collapsed in Saturday's magnitude-6.4 earthquake in the southern Taiwanese city of Tainan. Sam Yeh/AFP/Getty Images hide caption

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Rescue workers in the southern Taiwanese city of Tainan look for survivors in the rubble of a building that collapsed in the 6.4-magnitude earthquake. Anthony Wallace/AFP/Getty Images hide caption

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In Earthquake-Rattled Taiwan, A Somber Start To Lunar New Year
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Rescue workers look through the rubble of a collapsed building in the southern Taiwanese city of Tainan on Sunday, following a strong 6.4-magnitude earthquake that struck early on Saturday. For more than 30 hours, rescuers have worked to free more than 120 people buried under the rubble of the apartment complex. Anthony Wallace/AFP/Getty Images hide caption

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This San Francisco home collapsed in the 1989 Loma Prieta earthquake, which also claimed dozens of lives. ADAM TEITELBAUM/AFP/Getty Images hide caption

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U.S. Quake Warning System Could Save Lives When Seconds Count
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Part of the main street in Hilo, Hawaii, was flattened by a tsunami in April 1946. That big wave was triggered by a quake near the Aleutian Islands, where the edges of two tectonic plates continue to collide. Bettmann/Corbis hide caption

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Aleutian Quake Zone Could Shoot Big Tsunamis To Hawaii, California
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Pakistani villagers dig out their belongings from the rubble of homes destroyed by an earthquake in Shangla in Swat Valley, Pakistan. Naveed Ali/AP hide caption

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