Arizona Geology's Latest Posts
Aftershocks continue in the Duncan area with a M3.2 event on Tuesday night at about 8:16 pm.[right, orange star marks epicenter. Credit, USGS] Smaller aftershocks are more common but are not being reported by the USGS. AZGS is monitoring all the aftershocks with a temporary seismometer network deployed around the main shock area.
The Arizona Dept. of Water Resources has released its second report on statewide monitoring of land subsidence. "Land Subsidence Monitoring Report 2" is online for free viewing and downloading. [Right, index maps of active land subsidence areas in Arizona, from the report]The subsiding basins are all in the Basin and Range province of […]
A magnitude 3.1 earthquake occurred at 9:13 pm on Friday evening, in the aftershock area of the M5.2 Duncan earthquake. [Right, orange star marks epicenter. Credit USGS]The main shock was on June 28 and aftershocks are continuing intermittently, with the largest being M4.1.
The Duncan area of eastern Arizona had another measurable aftershock early this morning, following the June 28, M5.2 event. A M2.8 quake occurred at 3:33 am local time close to other recent aftershocks. We expect aftershocks to continue for weeks and possibly months. [Right, orange star marks epicenter. Credit, USGS]
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