Light mag. 3.5 earthquake - Custer County, 70 mi northeast of Boise, Ada County, Idaho, USA, on Monday, 1 Mar 2021 1:50 am (GMT -7) -
Light magnitude 3.5 earthquake at 10 km depth
1 Mar 09:07 UTC: First to report: USGS after 17 minutes.
Update Mon, 1 Mar 2021, 09:12Small earthquake of magnitude 3.5 just reported 15 miles northwest of Stanley, Idaho, United States
3.5 quake 1 Mar 1:50 am (GMT -7)
A shallow magnitude 3.5 earthquake was reported early morning near Stanley, Custer County, Idaho, USA.
According to the United States Geological Survey, the quake hit on Monday 1 March 2021 at 1:50 am local time at a shallow depth of 6.2 miles. Shallow earthquakes are felt more strongly than deeper ones as they are closer to the surface. The exact magnitude, epicenter, and depth of the quake might be revised within the next few hours or minutes as seismologists review data and refine their calculations, or as other agencies issue their report.
Our monitoring service identified a second report from the European-Mediterranean Seismological Centre (EMSC) which listed the quake at magnitude 3.5 as well.
Towns or cities near the epicenter where the quake might have been felt as very weak shaking include Stanley (pop. 68) located 15 miles from the epicenter.
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Date & time: 1 Mar 2021 08:50:41 UTC -
Local time at epicenter:
Monday, 1 Mar 2021 1:50 am (GMT -7)
Depth: 10.0 km
Epicenter latitude / longitude: 44.3236°N / 115.2027°W
, United States
Nearest volcano: Shoshone
(144 km / 89 mi)
Nearby towns and cities:24 km (15 mi) WNW of Stanley
(pop: 68) --> See nearby quakes!80 km (50 mi) WSW of Challis
(pop: 1,040) --> See nearby quakes!96 km (60 mi) SE of Lakeport
(pop: 3,110) --> See nearby quakes!98 km (61 mi) NW of Ketchum
(pop: 2,730) --> See nearby quakes!112 km (70 mi) NE of Boise
(pop: 146,000) --> See nearby quakes!116 km (72 mi) NE of Eagle (Ada County)
(pop: 23,600) --> See nearby quakes!124 km (77 mi) NE of Meridian
(pop: 90,700) --> See nearby quakes!134 km (84 mi) NE of Kuna (Ada County)
(pop: 17,200) --> See nearby quakes!140 km (87 mi) NE of Nampa
(pop: 89,800) --> See nearby quakes!140 km (87 mi) ENE of Caldwell
(pop: 51,700) --> See nearby quakes!
Weather at epicenter at time of quake:
Clear Sky -17°C
(1 F), humidity: 78%, wind: 2 m/s (3 kts) from SE
Primary data source: USGS
(United States Geological Survey)
Estimated released energy: 1.1 x 1010
joules (3.12 megawatt hours, equivalent to 2.68 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.
|3.5||10 km||24 Km WNW of Stanley, Idaho, USA||USGS|
|3.5||10 km||SOUTHERN IDAHO, USA||EMSC|
User reports for this quake (3)
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Nampa Idaho / Moderate shaking (MMI V) / 2-5 s : It woke me up
Boise / Light shaking (MMI IV) / horizontal (sideways) swinging / 1-2 s : Woke up to it, felt it shaking. Lived in CA for years so I know what to look for.
Garden City (113.3 km SW of epicenter) [Map] / Light shaking (MMI IV) / 1-2 s
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