According to experts, the next earthquake in Istanbul, Turkey, could cause considerable damage to the city.
Some 60% of hospitals are not resistant to earthquakes, and only about 5% of educational institutions have been or are being reinforced.
Earth's crust on the verge of rupture. Prof.Arkan warning highlights high risk of a significant earthquake in the coming months, urges precautions.
It is unclear whether the volume of airport traffic or the emergency response to the earthquake that struck late afternoon on Jan. 1 were factors in the accident.
After massive Japan earthquake and tsunami, surrounding countries are hit and issue tsunami warnings.
Tsunami of up to 5 meters high are believed to be reaching Noto in Ishikawa Prefecture, according to the weather agency.
Temperatures around the earthquake epicenter in Gansu fell to about minus 15 degrees Celsius (5 degrees Fahrenheit) on Tuesday night.
A magnitude-6.2 earthquake jolted a remote and mountainous county before midnight on Monday; Freezing temperatures put rescue teams in a race against the cold to prevent secondary disasters.
Authorities had evacuated the nearly 4,000 inhabitants of the fishing town of Grindavik last month over fears of eruption.
Local media footage showed crumbled facades of multi-storied brick houses, with large pieces of furniture scattered.