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Sub dives deeper in hunt for missing MH370

The mini-sub searching for missing flight MH370 dived on its fifth seabed mission Friday, officials said, testing the vehicle's recommended depth limits after failing to find any wreckage. With no results to show since the Boeing 777 carrying 239 people disappeared on March 8, Australia's Prime Minister Tony Abbott has set a one-week deadline to locate the plane which is believed to have crashed in a remote area of the Indian Ocean west of Perth.

Uncharted depths provide reality check for MH370 hunt

Hopes that Malaysia's missing jet might soon be found are yielding to the sobering realisation of the immense challenge of searching an uncharted seafloor at depths that push deep-sea technology to its limits. "I have compared it to sending a man to the moon. We know how to do it, but we can't just do it in three weeks," said Erik van Sebille, an oceanographer at the University of New South Wales. Twice in two days, an advanced US Navy mini-submarine has had to abort its search of the remote Indian Ocean for wreckage from the Boeing 777, which vanished on March 8.

Cousteau's grandson to spend 31 days at undersea lab in Florida Keys

Miami, Apr 15 (EFE).- Fabien Cousteau, grandson of the late French aquanaut Jacques Cousteau, will take part in a 31-day mission this summer at the Aquarius undersea laboratory in the Florida Keys to study the effects of climate change, pollution and acidification on the oceans of the world. Florida International University, or FIU, which since 2013 has operated the world's only undersea research facility, located at a depth of 19.2 meters (40 feet) off Key West, said that scientists and students are joining Cousteau on "Mission 31."

Magnitude 7.5 quake strikes off Solomons, sparks tsunami warning

WASHINGTON (Reuters) - A major earthquake of magnitude 7.5 struck off the coast of the Solomon Islands in the Pacific Ocean on Sunday, triggering a tsunami warning in the area, the U.S. Geological Survey and the Pacific Tsunami Warning Center said. The quake, initially reported as a magnitude 7.7 was shallow, only 12.4 miles below the seabed, and centered 73 miles south of Kira Kira in the Solomon Islands, which have been racked by a series of strong quakes in recent days.

Magnitude 7.7 quake strikes off Solomon Islands

A powerful earthquake with a magnitude of 7.7 struck off the Solomon Islands Sunday night, hours after a 7.6 tremor, the US Geological Survey said. A tsunami warning has been issued for the Solomon Islands, Vanuatu and Papua New Guinea, the Pacific Tsunami Warning Center said. bur/sm

Strong quake hits near Solomon Islands; tsunami warning cancelled

(Reuters) - A powerful magnitude 7.6 earthquake struck near the Solomon Islands on Sunday morning, triggering a tsunami warning that was later cancelled, according to U.S. government agencies, and there were no immediate reports of damage. The quake was centered 100 km (60 miles) south of Kira Kira on the island of Makira at a depth of 29 km (18 miles), according to the U.S. Geological Survey.

7.6 quake strikes off Solomon Islands

A powerful 7.6-magnitude earthquake struck off the Solomon Islands early Sunday, US geologists said. The US Geological Survey said the quake was measured at a depth of around 29 kilometres (18 miles) and was about 300 kilometres south east of Solomon Islands' capital Honiara. The US Geological Survey issued a "green alert", indicating there was a low likelihood of casualties and damage. The Intergovernmental Oceanographic Commission initially put out a tsunami warning for the Solomon Islands, Vanuatu, and Papua New Guinea, but has since cancelled the alert.

MH370 hunt goes on after Australia signals great confidence

Ships and planes pursued Saturday the search for the missing Malaysian airliner off Australia after Prime Minister Tony Abbott said he was "very confident" that signals from the black box had been detected. The Australian-led search for the Boeing 777, which disappeared en route from Kuala Lumpur to Beijing, is racing to gather as many signals as possible to determine an exact resting place before a submersible is sent down to find wreckage.

Powerful 7.3 quake hits off Papua New Guinea

A powerful 7.3-magnitude earthquake struck off Papua New Guinea on Friday, US officials said, but no Pacific-wide tsunami warning was sounded. The US Geological Survey said the quake hit at a depth of 54 kilometres (34 miles) at around the same distance from the town of Panguna on Bougainville island. Geoscience Australia measured the quake at 7.4 magnitude and said the tremor, which hit close to the neighbouring Solomon Islands, was estimated to be in the "shallow" range.

Powerful 7.3 quake hits off Papua New Guinea

A powerful 7.3-magnitude earthquake struck off Papua New Guinea on Friday, US officials said, but no Pacific-wide tsunami warning was sounded. The US Geological Survey said the quake hit at an estimated depth of 54 kilometres (34 miles) at around the same distance west of the town of Panguna on the remote and volcanic Bougainville island. Geoscience Australia estimated the quake at 7.4 magnitude and said the tremor, which hit close to the neighbouring Solomon Islands, was believed to be in the "shallow" range.
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