On April 11 of this year, an extraordinary cluster of earthquakes struck off Sumatra. The largest shock, magnitude 8.7, produced stronger ground-shaking than any earthquake ever recorded. And it surprised seismologists by triggering more than a dozen moderate earthquakes around the world.
The quakes are also a sign of big changes to come in the Earth's crust.
People are not getting much work done in parts of Europe. Last night, there were violent protests in Spain. They were protests against austerity measures, which is also the case in Greece, where a nationwide strike came today. It closed businesses and schools, and reporter Joanna Kakissis is following the story from Athens.
A tiger is seen in June 2008 at Sariska Tiger Reserve in the western state of Rajasthan, India, after being shifted from Ranthambore National Park. In an attempt to help revive western India's tiger population, a female tiger was airlifted to join a male at the national reserve.
In October 2010, a tiger walks past a vehicle carrying tourists at Ranthambore National Park in India. India's top court has banned tourism in parts of tiger reserves across the country in an effort to save the endangered big cat.
Credit Mustafa Quraishi / AP
Scavenging monkeys mix with visitors at the temples of the ancient Ranthambore Fort in Ranthambore National Park. Dotted with remnants of India's past glories and its religious heritage, the national parks draw many visitors on pilgrimages.
Credit Dharmendra Khandal for NPR
A view of Ranthambore National Park from atop the thousand-year-old fort that bears the same name. The park has been closed to visitors since the Supreme Court's ban on tourists in core areas of the country's 41 tiger reserves. A quarter-million visitors toured the park last year, and local businesses say the economy in the area will collapse if the ban is not lifted.
Can tigers and tourists coexist? The debate is rumbling through India, where the Supreme Court has temporarily banned tourism in core areas of the country's 41 tiger reserves. The unexpected and controversial ruling is aimed at protecting the last of India's 1,700 tigers.
Up until the late 1960s, big game hunters trod the forests of Rajasthan's Ranthambore National Park, part of a sprawling tiger reserve southwest of Delhi. Under the court's recent ban, spotting one of India's big cats — a tiger or the more elusive leopard — inside the park is forbidden.