Two earthquakes in northwest Arizona demonstrate the swarm activity is not over yet. A magnitude 1.7 earthquake occurred just before midnight, followed by a magnitude 2.0 event at 10:21 a.m. local time this morning. It's been a few days with no reported activity. [Right, red dot marks the epicenter of the magnitude 2.0 event, the orange dot shows the smaller quake. The red lines are active faults. Credit, USGS]We've seen over 60 earthquakes in this area since March 28 and cannot say how much longer they may continue.
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