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1940 New Hampshire earthquakes : ウィキペディア英語版 | 1940 New Hampshire earthquakes
The 1940 New Hampshire earthquakes struck on December 20 and again on December 24. The initial shock measured 5.3 and the second shock measured 5.6 on the moment magnitude scale. With a maximum Mercalli intensity of VII (''Very Strong''), these doublet earthquakes were the largest to hit the state. Damage included minor fractures or knocked over chimneys in a zone extending through New Hampshire and four other states: Maine, New York, Vermont and Massachusetts. == History == While not known for earthquakes, New Hampshire has been dotted with both major and minor events. The first recorded significant event to strike the state was the 1663 Charlevoix earthquake, originating in the Saint Lawrence River fault zone. The extent of the earthquake is not firm, at least in the state, as the population was composed largely of colonial settlers who had left the east coast. The 1663 earthquake felled chimneys, oscillated houses, and threw pewter from shelves in the Massachusetts Bay area.
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