Weather officials warn of powerful aftershocks
Posted by JAC on 3/22/2011, 10:06 am
http://www3.nhk.or.jp/daily/english/22_32.html


Japan's Meteorological Agency is urging people to continue to be alert against powerful aftershocks following the March 11th earthquake. The initial quake had a magnitude of 9.0 -- the country's highest ever.

The agency says it observed more than 60 aftershocks in a wide area of eastern Japan that registered 4 or more on the Japanese seismic scale of 0 to 7 through Monday evening. On Saturday, a 5-plus aftershock jolted Ibaraki Prefecture, northeast of Tokyo.

Agency officials said at a news conference on Tuesday that aftershocks are becoming less frequent, but tremors with magnitudes of 7 or more could still occur. The officials warned that severe aftershocks could collapse buildings already damaged by the quake and tsunami, or cause another huge tsunami.

The agency on Tuesday upgraded the magnitude of the aftershock that occurred off Ibaraki Prefecture immediately after the March 11th quake from 7.4 to 7.7, making it the biggest aftershock to date.

Rain and snow are forecast for some areas affected by the quake and tsunami, with overnight lows dropping about 2 degrees Celsius from Tuesday morning.

Officials are calling on people who suffered from the quake to be careful about their already-weakened health condition.

Tuesday, March 22, 2011 18:58 +0900 (JST)
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6.6 Aftershock - JAC, 3/22/2011, 5:13 am
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