Which seismic zone triggered the 2010 Indiana earthquake?
New Madrid Seismic Zone The New Madrid Seismic Zone (pronounced ), sometimes called the New Madrid Fault Line, is a major seismic zone and a prolific source of intraplate earthquakes (earthquakes within a tectonic plate) in the southern and midwestern United States, stretching to the southwest from New Madrid, Missouri.
2014 Aleutian Islands earthquake The 2014 Aleutian Islands earthquake occurred on 23 June at 11:53 HADT (UTC-9) with a moment magnitude of 7.9 and a maximum Mercalli intensity of VI ("Strong"). The shock occurred in the Aleutian Islands – part of the US state of Alaska – 19 mi southeast of Little Sitkin Island.