The Duncan area experienced four more aftershocks in an 18 hour period [right. credit USGS], with local residents reporting feeling them. There was a M3.6 event at about 3 p.m. Thursday and a M3.2 at 11:15 p.m. A M2.8 occurred at 1:38 a.m. this morning, followed by a M3.5 quake at 5:41 a.m. The Arizona Geological Survey is developing an interactive online map viewer to show all the aftershocks we are recording. We installed 5 portable seismometers around the main shock epicenter area earlier this week which should be accurately recording not only these larger events but many other shocks that are too small to be felt.
The Duncan M5.2 main shock hit on Saturday, June 28.
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