The New York Times has created a series of data visualizations illustrating how two large earthquakes in early July in Southern California triggered 16,000 aftershocks. The visualizations show that the aftershocks occurred for more than 13 days after the original earthquakes. In addition, the visualizations reveal that the earthquakes emanated from two geological fault lines, which run perpendicular to each other, that were previously unknown. The data about the earthquakes could help geologists better understand how earthquakes develop on connected faults.
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