TOKYO (August 11, 2009)--One person died and dozens were injured Tuesday when two powerful earthquakes struck Asia.

The U.S. Geological Survey said a 7.6 magnitude quake hit the Indian Ocean about 160 miles north of Port Blair in India's Andaman Islands.

A tsunami watch was issued, but it was later lifted.

In Japan, one person was killed and several dozen injured when a 6.5-magnitude quake hit Tokyo and nearby areas shortly after dawn, halting trains and forcing two nuclear reactors to shut down for safety checks.

Police say a 43-year-old woman was killed by falling debris, and at least 63 people were injured.

Japan's Meteorological Agency also issued a tsunami warning, but later lifted it.

The quakes, which sent people scurrying into the streets, came about 10 minutes apart but are likely unrelated.

Corning Inc. said its output of liquid-crystal-display glass will be lower than expected in the current quarter because the earthquake halted glassmaking operations at its plant in Japan.

The company says production at its factory in Shizuoka will remain suspended "for some time" and will reduce sales by an estimated $65 million in the July-September quarter.

Shizuoka, southwest of Tokyo, was the area hardest hit by the deadly quake.

Corning says volume at its wholly owned glass business will drop 5 percent to 10 percent compared with the second quarter.

It had expected third-quarter shipments to be flat or up slightly.

The ultra-thin glass is used in flat-screen televisions, computers, digital phones and other electronic products.