Weak mag. 2.7 earthquake - 2.9 mi northeast of Government Camp, Clackamas County, Oregon, USA, on Sunday, 17 Jan 2021 3:38 pm (GMT -8) -
Weak magnitude 2.7 earthquake at 6 km depth
17 Jan 23:42 UTC: First to report: USGS after 4 minutes.
17 Jan 23:58: Magnitude recalculated from 3.2 to 2.7. Hypocenter depth recalculated from 3.0 to 5.6 km (from 1.9 to 3.5 mi). Epicenter location corrected by 1.1 km (0.7 mi) towards SSW.
Update Sun, 17 Jan 2021, 23:48Small tremor of magnitude 3.2 just reported 38 miles southeast of Gresham, Oregon, United States
3.2 quake 17 Jan 3:38 pm (GMT -8)
An earthquake of magnitude 3.2 occurred early afternoon on Sunday 17 January 2021 at 3:38 pm local time near Gresham, Multnomah County, Oregon, USA, as reported by the United States Geological Survey (USGS).
According to preliminary data, the quake was located at a very shallow depth of 1.9 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 3.2 as well.
Based on the preliminary seismic data, the quake should not have caused any significant damage, but was probably felt by many people as light vibration in the area of the epicenter.
Weak shaking might have been felt in Government Camp (pop. 190) located 3 miles from the epicenter.
Other towns or cities near the epicenter where the quake might have been felt as very weak shaking include Odell (pop. 2,300) located 22 miles from the epicenter. In The Dalles (pop. 15,300, 31 miles away), Troutdale (pop. 16,600, 37 miles away), Gresham (pop. 110,600, 38 miles away), Happy Valley (pop. 18,500, 41 miles away), Oregon City (pop. 35,800, 44 miles away), and Portland (pop. 632,300, 50 miles away), the quake was probably not felt.
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Date & time: 17 Jan 2021 23:38:31 UTC -
Local time at epicenter:
Sunday, 17 Jan 2021 3:38 pm (GMT -8)
Depth: 5.6 km
Epicenter latitude / longitude: 45.3205°N / 121.69983°W
, United States
Nearest volcano: Mount Hood
(6 km / 4 mi)
Nearby towns and cities:5 km (3 mi) ENE of Government Camp
(pop: 193) --> See nearby quakes!22 km (14 mi) E of Mount Hood Village
(pop: 4,860) --> See nearby quakes!51 km (32 mi) SW of The Dalles
(pop: 15,300) --> See nearby quakes!59 km (37 mi) ESE of Sandy
(pop: 16,600) --> See nearby quakes!60 km (38 mi) ESE of Gresham
(pop: 110,600) --> See nearby quakes!71 km (44 mi) E of Oregon City
(pop: 35,800) --> See nearby quakes!79 km (49 mi) ESE of Portland
(pop: 632,300) --> See nearby quakes!83 km (52 mi) ESE of Vancouver (Washington)
(pop: 172,900) --> See nearby quakes!88 km (55 mi) E of Beaverton
(pop: 96,600) --> See nearby quakes!113 km (70 mi) ENE of Salem (Oregon)
(pop: 164,500) --> See nearby quakes!
Weather at epicenter at time of quake:
Overcast Clouds 6.1°C
(43 F), humidity: 89%, wind: 2 m/s (4 kts) from W
Primary data source: USGS
(United States Geological Survey)
Estimated released energy: 7.1 x 108
joules (197 kilowatt hours, equivalent to 0.169 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.
|2.7||5.6 km||4 Km ENE of Government Camp, Oregon, USA||USGS|
|2.8||7 km||MOUNT HOOD AREA, OREGON, USA||EMSC|
User reports for this quake (5)
At magnitude 2.7, this quake might have been felt very close to the epicenter and under calm conditions.
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Summit meadow government camp
/ Very weak shaking (MMI II) / vibration and rolling : Heard a rumble.... | 3 users found this interesting.
- I felt a little but also some rumbling nothing to be alarming near Yellepit Washington
23.7 km W of epicenter [Map] / Light shaking (MMI IV) : I live in a tiny house on wheels & am a light sleeper so I feel any perceptible shake. My house is just off HWY26. I had a 12”x12” mirror crack.
59.3 km WNW of epicenter [Map] / not felt : Not felt
Kennewick / Weak shaking (MMI III) / rattling, vibrating / very short : Just keep on Observating and update on it
Government camp / Very weak shaking (MMI II) / single lateral shake / very short
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