TOKYO, May 25 (UPI) -- A 5.6-magnitude earthquake shook Tokyo Monday, delaying trains and closing both runways at the capital's primary airport.
No reports of damage or casualties were reported, and no tsunami warning was issued, but the Japan Meteorological Agency warned of aftershocks, landslides and rockslides. The earthquake was centered in Saitama prefecture, northwest of Tokyo, and 56 kilometers (35 miles) below ground. Narita International Airport's two runways were temporarily closed until safety checks could be performed.