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.
1983 Popayán earthquake The 1983 Popayán earthquake (Spanish: "El Terremoto de Popayán" ) occurred on 31 March in Popayán, Colombia. It had a magnitude of at least 5.5 with an epicenter south west of Popayán at a depth of 12-15 km . The earthquake killed 267 people and resulted in the passing of new laws requiring earthquake resistant building materials in zones at risk of tremors.