Moderate mag. 4.6 earthquake - Iron County, 31 mi northeast of Cedar City, Ayron srjan County, Utah, USA, on Saturday, 20 April 1991 at 12:56 (GMT)
Moderate magnitude 4.6 earthquake at 10 km depth
1 Jan 00:00 UTC: First to report: USGS after 30 seconds.
Depth: 9.6 km
Epicenter latitude / longitude: 38.07233°N / 112.7875°W (Iron County, Utah, United States)
Nearest volcano: Markagunt Plateau (56 km / 35 mi)
Nearby towns and cities:
20 km (12 mi) SE of Minersville (pop: 869) --> See nearby quakes!
26 km (16 mi) N of Louisa (pop: 2,930) --> See nearby quakes!
26 km (16 mi) SSW of Beaver (pop: 3,010) --> See nearby quakes!
39 km (24 mi) NNE of Enoch (Iron County) (pop: 6,270) --> See nearby quakes!
41 km (25 mi) SSE of Milford (pop: 1,330) --> See nearby quakes!
42 km (26 mi) NW of Panguitch (pop: 1,480) --> See nearby quakes!
50 km (31 mi) NNE of Cedar City (Iron County) (pop: 30,200) --> See nearby quakes!
99 km (62 mi) SW of Richfield (Sevier County) (pop: 7,590) --> See nearby quakes!
129 km (80 mi) NNE of St. George (pop: 72,900) --> See nearby quakes!
309 km (192 mi) SSW of Salt Lake City (pop: 192,700) --> See nearby quakes!
Primary data source: USGS (United States Geological Survey)
Estimated released energy: 5 x 1011 joules (139 megawatt hours, equivalent to 120 tons of TNT) More info
Data for the same earthquake reported by different agencies
Info: The more agencies report about the same quake and post similar data, the more confidence you can have in the data. It takes normally up to a few hours until earthquake parameters are calculated with near-optimum precision.
|4.6||9.6 km||Utah (USA)||USGS|
User reports for this quake
User reports estimate the perceived ground shaking intensity according to the MMI (Modified Mercalli Intensity) scale.