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New Zealand Herald
Dire quake warning for Alpine Fault
By Shelley Robinson
9:40 AM Wednesday Apr 10, 2013
The figures have been revealed by Civil Defence emergency management group leader James Thompson, as Civil Defence, hospitals, police and other emergency services plan for a major exercise to prepare for The Big One.
The Alpine Fault is expected to rupture within 50 years, a one-in-500 year event that will produce a devastating earthquake of a magnitude 8 or more.
Towns and cities throughout the South Island will feel its tremendous power, with those on the West Coast taking most of its brunt.
Settlements and possibly towns are expected to be cut off for long periods because of landslides and wrecked roading and other links.
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IBTimes
The
Wellington earthquake could have brought a lot of damage, but the
possibility of bigger aftershocks remains high, according to scientists.
The
fault line that caused the earthquakes in Cook Strait has long been
known to produce earthquake "swarms" but none have been recorded as
devastating, according to historical records.
The Wellington quakes that occurred three times on Friday, July 19, and twice on July 21 and the following aftershocks were due to city's plates moving between the Pacific and Australian tectonic plates. The highest magnitude of an earthquake in Wellington was recorded last night at 6.5.
Dr. Richard Sharpe, Director of Earthquake
Engineering at Beca said he did not expect the yesterday's quakes at
Wellington will cause damage to buildings. However, Mr. Sharpe said the
quakes would prompt the city to conduct engineering checks.The Wellington quakes that occurred three times on Friday, July 19, and twice on July 21 and the following aftershocks were due to city's plates moving between the Pacific and Australian tectonic plates. The highest magnitude of an earthquake in Wellington was recorded last night at 6.5.
New Zealand is resilient to earthquakes in general. According to Mr. Sharpe, other countries that will experience the same type of earthquakes in Wellington will probably cause very brittle buildings to sustain damage.
Professor of Geophysics at Victoria University Euan Smith said that the interface between the underlying Pacific plates and overlying Australian plates was a critical fault. Mr. Smith said the same fault could potentially cause massive earthquakes.
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