The New Zealand earthquake surprised engineers by triggering severe damage or collapse of some recently constructed buildings. Photo: AP Photo/Kyodo News, Shuzo Shikano Rescue workers search for victims buried under the rubble near the Canterbury Television building in Christchurch, New Zealand, Wednesday night, Feb. 23, 2011. The magnitude 6.3 earthquake that struck 10 km from Christchurch, South Island, New Zealand on Feb. 22 brought down or severely damaged some contemporary structures because the quake was extremely shallow—centered only 5 km below the surface. “New Zealand has very good loading standards and a strict regulatory environment and since the mid-70s onwards,
The 2016 Summer Olympics boating and swimming events have put an international spotlight on what has been a long-running problem in Rio de Janeiro—untreated sewage and trash are clogging up major bays and waterways.