This weekend I suggested that the earthquake swarm in northwest Arizona might have come to its end. We had not recorded any events for a week.
But last night at about 9 p.m. local time, there was a magnitude 1.3 quake in the swarm area. [Right, orange star marks epicenter. Credit, USGS]
The swarm activity began on March 28 and we have seen roughly 65 earthquakes, ranging in magnitude 0.9 to 3.8. The largest events were felt in Arizona and Nevada, but no injuries or damage was reported.
We have no way of predicting if more events will occur.
Gyronchus macropterus Fish Fossil
1 day ago
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