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Huge Christchurch Aftershock Topples More Buildings June 17, 2011
Quake Map of New Zealand
New Zealand’s quake-weary city of Christchurch was rocked by a series of strong aftershocks on Tuesday that injured at least 10 people.

Shaking as strong as magnitude 6.3 within just a little over three hours caused further damage around the already heavily damaged city, and dampened spirits of those hoping for swift recovery from February’s comparable temblor.

The most powerful jolt struck at at 2:20 p.m. local time at a depth of only four miles, according to GNS Science seismologists.

That quake caused some buildings to collapse, knocked out power and produced widespread liquefaction — in which the ground acts like a liquid and amplifies the damage to any structures sitting on it.

GNS Science says that residents should expect a series of new strong aftershocks of this aftershock sequence, possibly lasting for months.

Tuesday’s strongest quake was comparable in strength to the devastating February 22 temblor that wrecked Christchurch’s city center and took the lives of at least 181 people.

More than 100 of the victims perished in a collapsed building that housed Canterbury Television, which only recently began broadcasting again from another facility.