According to one source, earthquakes with the power to ruin buildings and split open the ground have averaged 18 per year since 1914. Deadlier quakes strong enough to level buildings have occurred about once a year.
एका स्रोतानुसार, १९१४ पासून दरवर्षी इमारतींना तडे पाडण्याची व जमीन दुभंगण्याची शक्‍ती असलेले सरासरी १८ भूकंप झाले आहेत.