Earthquake Info: Unconfirmed earthquake or seismic event reported: 7.8 miles northeast of Hillsboro, Washington County, Oregon, United States, August 28, 2021 11:14 a.m. (GMT -7)

Quake status: very uncertain

This dataset is assumed not to have come from an actual earthquake as there is no officially confirmed quake to match the user reports we received of the reported event closely enough.
In most cases, this event likely reflects something else that was causing the jarring, such as B. an explosion (typical of mining areas), a sonic boom, traffic, weather or other human or natural causes.
The first report is below:

Although our monitoring service initially identified network activity typical of an earthquake, there was no confirmation from a national or international seismological authority. Because of this, it is very unlikely that it was caused by an earthquake.

Updated: August 29, 2021 12:27 GMT – Update

August 28, 18:17 UTC: First report: VolcanoDiscovery after 2 minutes.

I felt this tremor

I didn’t feel it

Date & time: August 28, 2021 18:14:46 UTC –
Local epicenter time: Saturday, August 28, 2021 11:14 am (GMT -7)
Size: 3?
Depth: 10.0 km
Epicenter latitude / longitude: 45.55675 ° N / 122.90358 ° W↗ (Washington, Oregon, USA)
Antipode: 45,557 ° N / 57,096 ° E
Closest volcano: West Crater (73 km / 45 mi)
Cities nearby:
2 km (1 mi) WNW of Rockcreek (Pop: 9,320) -> See quakes nearby!
3 km (2 mi) west of Bethany (Population: 20,600) -> See quakes nearby!
8 km (5 mi) NNW of Aloha (Population: 49,400) -> See quakes nearby!
8 km (5 mi) northeast of Hillsboro (Population: 102,300) -> See quakes nearby!
11 km (7 mi) northwest of Beaverton (Pop: 96.600) -> see quakes nearby!
10 miles east of Forest Grove, Washington County (Population: 23,900) -> See quakes nearby!
17 km (11 mi) northwest of Tigard (Population: 51,300) -> See quakes nearby!
18 km (11 mi) west of Portland (Population: 632,300) -> See quakes nearby!
21 km (13 mi) WSW of Vancouver (Washington) (Population: 172,900) -> See quakes nearby!
69 km (43 mi) north of Salem, Oregon (Population: 164,500) -> See quakes nearby!
Weather in the epicenter at the time of the quake:
Clear sky 21 ° C (70 ° F), humidity: 57%, wind: 2 m / s (3 kts) Primary data source: VolcanoDiscovery

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Data for the same earthquake reported by different authorities

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User reports on this quake (1)

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Beaverton (0 km southeast of the epicenter) [Map] / Very weak shaking (MMI II) / rattling, vibrating / several minutes : At deq in Hillsboro Oregon. The shaking just stopped at 11:16 a.m.

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