More than 300 people have died and thousands were injured in a magnitude 7.3 earthquake that struck along the border of Iraq and Iran Sunday night. The location of this earthquake is along a fault where two tectonic plates meet (the Arabian and Eurasian plates). Historically this region has sustained multiple large earthquakes, including a magnitude 7.4 in 1990 that caused over 40,000 fatalities and left more than 600,000 homeless. The GRCC seismometer recorded the Iraq-Iran earthquake as well as a magnitude 6.5 earthquake in Costa Rica. For more information about this and other earthquakes, go to the United States Geological Survey’s comprehensive website.