When we think about earthquake danger, we're more likely to picture California than Arkansas.But Arkansas also has a major fault line.The New Madrid Fault Line runs from the tip of Mississippi up into southern Illinois along the Mississippi River.The last major earthquakes along the fault happened in December 1811 and in 1812, but University of Arkansas professor Gregory Dumond said scientists can't predict when the next one will happen."We can give you a percent chance of it maybe happening, but that's about it," he said in a 2019 interview.Dumond said the biggest difference between the faults in California and Arkansas is time."If we look at the record of just a week's time of the earthquakes that hit California, it would populate the map," Dumond said. "If we look at a similar map of New Madrid and we plot all the earthquakes on it, it would look special, with a lot of earthquakes on it, but that's accumulated over hundreds of thousands of years."Californians prepare for earthquakes much like Arkansans prepare for natural disasters."People in California think about earthquakes all the time," Dumond said. "They have to engineer buildings that have to withstand the impact of an earthquake and have insurance for those sorts of things."Here in Arkansas, the Arkansas Army National Guard works together with state agencies to prepare for emergencies like major earthquakes."We are a state supporting agency. We would fill the voids that other state agencies would have if they ran out of resources," Lt. Col. Derald Neugebauer said.While New Madrid has been relatively dormant for hundreds of years, it is still possible it could produce a major earthquake."One school of thought is geologists that say it's a dead fault, it's not moving, it's not creeping," Dumond said. "But seismic activity has been recorded since 1972."