Region escapes tsunami threat

BANDA ACEH, INDONESIA, 12 April 2012: A tsunami watch around the Indian Ocean was lifted hours after two massive earthquakes struck off Indonesia’s Sumatra island Wednesday, sending terrified people fleeing from the coast.

The 8.6-magnitude quake hit 431 km (268 miles) off the city of Banda Aceh at 0838 GMT, and was followed by another undersea quake measured at 8.2, the US Geological Survey said.

Panicky residents poured into the streets of Banda Aceh, which was near the epicentre of a 9.1-magnitude quake in 2004 that unleashed an Indian Ocean tsunami that killed 220,000 people including 170,000 in Aceh province 26 December 2004.

Wednesday’s quake was felt in Thailand, where skyscrapers in the capital Bangkok swayed. India, Indonesia, Kenya, Malaysia, Reunion Island, Sri Lanka, Thailand and Myanmar all issued tsunami alerts or evacuation orders which were later lifted yesterday evening.

Waves of up to 80 centimetres (31 inches) hit Indonesia’s Aceh province, but there were no reports of damage or casualties.

US seismologists then cancelled the tsunami warning, saying the quakes had generated only small waves and were nowhere near the scale of the disasters that struck Asia in 2004 and Japan last year.

The Pacific Tsunami Warning Centre in Hawaii said the threat of a tsunami has “diminished or is over for most areas”.

Earlier in Banda Aceh, there were chaotic scenes as people grabbed their families and raced through crowded streets, with motorbikes and cars jostling for space.

“There are people trying to evacuate, some are praying and children at a school were panicking as teachers tried to get them out,” an AFP correspondent in Banda Aceh said.

“There are traffic jams everywhere as people are trying to get away from the coast — many are on motorcycles,” he said, adding that telephone connections and electricity were patchy.

Television images showed hundreds gathering at a large mosque in Banda Aceh, many weeping and searching for family members. Women and girls draped head-to-toe in white were praying on mats laid out on the ground.

In Sri Lanka the disaster management centre asked residents on the coast to move inland to avoid being hit by any large waves. In the capital Colombo, nervous crowds gathered on the streets.

“There was a first jolt for five seconds, then a pause and then a really big one. It was really frightening, the whole room was shaking,” said 42-year-old tourist Maria Teresa Pizarro from the Philippines.

Thailand issued an evacuation order for its Andaman coast, a popular tourist destination, and flights to the tourist island of Phuket were diverted to other airports as passengers and staff were evacuated to higher ground.

A small tsunami measuring approximately 30 centimetres reached the coast before Thailand, like other countries, lifted its warning.

“At this point people can be relieved,” said Somsak Khaosuwan, the director of Thailand’s National Disaster Warning Centre.

India issued a red high-level tsunami warning for the Andaman and Nicobar Islands, located in the Indian Ocean, and lower alerts for several other eastern coastal states.

Tremors were felt in the Indian eastern city of Kolkata, where cracks appeared in some tall buildings. A large number of people rushed out of offices in the city’s central Park street area as windows and doors rattled.

In the Maldives, where luxury resorts cater to well-heeled holiday makers, hotels moved tourists away from beaches, with some even issuing guests with life jackets as a precaution.

The catastrophic 2004 tsunami was generated by a 9.1-magnitude earthquake that struck in the ocean about 200 km away from Wednesday’s initial quake.

An expert with the British Geological Survey said the tsunamis were small because the quakes’ movement was horizontal, not vertical, and caused no drop in the sea floor, which is what triggers tsunamis.

“Although an earthquake of this magnitude has the potential to cause a large tsunami… we haven’t seen any drop of the sea floor, which is what generates the wave,” seismologist Susanne Sergeant told AFP.

Last year, a 9.0-magnitude earthquake caused a tsunami and nuclear disaster in Japan, killing some 19,000 people.

The latest Indonesian quakes occurred in a notoriously seismic area, where the Indian tectonic plate descends into the Earth beneath the Eurasian plate.

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