Question: Which seismic zone triggered the 2010 Indiana earthquake?
Context: The 2010 Indiana earthquake registered 3.8 on the moment magnitude scale and struck near Greentown and Kokomo on December 30, 2010 at 12:55:21 UTC at a depth of 3 mi.  The quake occurred approximately 50 miles north of Indiana's capital, Indianapolis.  It joins only three other earthquakes that have affected the northern Indiana area since 1999.  The “extremely rare and unprecedented” earthquake had the largest magnitude of a northern Indiana earthquake in 175 years.  Despite being considered a rare occurrence, the affected region of northern Indiana lies near many fault lines including the Wabash Valley Seismic Zone and the New Madrid Seismic Zone.  Both zones are hotspots for tectonic activity, with the Wabash Valley Fault Zone reaching earthquake depths up to 18 km (11.4 mi.)  deep.  It was incorrectly recorded by nearby stations as a 4.2 magnitude before being downgraded to 3.8.  No significant damage was reported from the incident, but the quake was felt by thousands, spanning across multiple cities and states.  Towns as far away as Kalamazoo, Michigan and states as far as Wisconsin and Kentucky reported the earthquake. The Charlevoix Seismic Zone is a seismically active area in the Charlevoix region of northeastern Quebec, Canada.  It is also known as the Charlevoix-Kamouraska Seismic Zone because earthquakes occur in Kamouraska Country where the land expression of the seismic zone is separated by the Saint Lawrence River.  Much seismic activity takes place under the river. The 1732 Montreal earthquake was a 5.8 magnitude earthquake that struck New France at 11:00 a.m. on September 16.  The shaking associated with this earthquake shook the city of Montreal with significant damage, including destroyed chimneys, cracked walls and 300 damaged houses, as well as 185 buildings destroyed by fire following the earthquake.  A girl was reported killed from the seismic activity, although Gabriel Leblanc found present information could not substantiate the claim, especially since, if the death was true, it should have been but was not mentioned in the description of the natural disaster by Sister Cuillerier, a staff member of the Hotel Dieu Hospital.  The 1732 Montreal earthquake is one of the major earthquakes that occurred in the Western Quebec Seismic Zone. The Northern Appalachians Seismic Zone is an active seismic zone in the Appalachian Mountains of eastern North America, extending from New Brunswick southwards into New England and Boston.  Both the seismic zone and the resultant Appalachian Mountains were created by the collision of two tectonic plates about 440–480 million years ago during the middle Ordovician Period. The 2000 Kipawa earthquake struck Quebec and Ontario, Canada with a moment magnitude of 5.2 at 6:22 a.m. on January 1.  It occurred in the Western Quebec Seismic Zone.  The main shock epicenter was located in Lake Kipawa about 10 km north of Témiscaming in southwestern Quebec and 70 km northeast of North Bay, Ontario.  The shaking associated with this earthquake was strongest within 50 km of the epicenter.  It was felt in Témiscaming, North Bay and as far away as Toronto, making it one of the most significant earthquakes in Canada in 2000.  The earthquake was triggered by major thrust faults associated with the Ottawa-Bonnechere Graben. The 1909 Wabash River earthquake occurred at 04:45 local time on September 27 with a maximum Mercalli intensity of VII ("Very strong").  It measured 5.1 on a seismic scale that is based on an isoseismal map or the event's felt area.  With moderate damage in the Wabash River Valley, it is currently the strongest earthquake recorded in the U.S. state of Indiana.  The earthquake occurred somewhere along a fault within the Wabash Valley Seismic Zone. The Eastern Tennessee Seismic Zone (ETSZ), also known as the East Tennessee Seismic Zone and the Southern Appalachian Seismic Zone, is a geographic band stretching from northeastern Alabama to southwestern Virginia that is subject to frequent small earthquakes.  The ETSZ is one of the most active earthquake zones in the eastern United States. 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. The 2017 Jinghe earthquake occurred at 07:27 China Standard Time (CST, UTC+8) on 9 August 2017, in Jinghe County, Bortala Mongol Autonomous Prefecture, Xinjiang Uyghur Autonomous Region, China, with magnitude 6.6 and depth 11 kilometres.  The epicentre was .  Most cities in northern Xinjiang felt the quake.  This earthquake occurred on the Tian Shan seismic zone.  There was no direct relationship to the 2017 Jiuzhaigou earthquake that occurred dozens of hours before. The 2003 Alabama earthquake took place on April 29 at 3:59 A.M. Central Daylight Time (local time when the event occurred) eight miles (13 km) east-northeast of Fort Payne, Alabama.  The number of people who felt this quake was exceptionally high as the earthquake could be felt in 11 states across the East Coast and as far north as southern Indiana.  The earthquake was strongly felt throughout metropolitan Atlanta.  The Georgia Building Authority was called out to inspect the historic Georgia State Capitol in downtown Atlanta and other state-owned buildings, but found no problems.  However, this is not out of the ordinary as earthquakes east of the Rocky Mountains can be felt several times the area felt on West Coast earthquakes.  The earthquake was given a magnitude 4.6 on the moment magnitude scale by the USGS (other sources reported as high a magnitude as 4.9) and reports of the duration of the shaking range from 10 seconds to as long as 45 seconds.  It is tied with a 1973 earthquake near Knoxville, Tennessee as the strongest earthquake ever to occur in the Eastern Tennessee Seismic Zone, which is the second most active seismic zone east of the Rocky Mountains, with the New Madrid Seismic Zone the most active.
Answer: The New Madrid Seismic Zone