Earthquake status: highly uncertain
It is unlikely that this event was caused by a natural earthquake as it has not been confirmed by official seismic data. In most cases, it was another earthquake-like event of natural or artificial origin (eg, mine activity, eruptions, sonic booms, thunder, etc.).
Initial report below:
Although our monitoring service initially detected network activity typical of an earthquake, there was no confirmation from any national or international seismological agency. For this reason, it is highly unlikely that it was caused by an earthquake.
9. August 22:40 UTC: First message: VolcanoDiscovery after 23 minutes.
I felt it
I didn’t feel it
Date and time (UTC): Aug 9, 2021 22:17:38 UTC –
Local time in the epicenter: Monday August 9, 2021 6:17 PM (GMT -4)
Epicenter depth: 10.0 km
Geographical epicenter. Latitude/Longitude: 44.036°N / 69.84396°W (Maine, United States)
Nearby places and cities:
7 km southwest of Richmond (Maine) (pop count: 1760) -> earthquake is near!
11 km northwest of North Bath (pop: 9360) -> earthquakes nearby!
17 km northeast of Brunswick (Main) (pop count: 15200) -> earthquake is near!
21 km east Lisbon (Main) (pop: 9390) -> earthquakes nearby!
22 km southwest Gardiner (pop: 5600) -> earthquakes nearby!
30 km ESE from Lewiston (Main) (pop: 36200) -> earthquake is near!
32 km ESE from Auburn (Main) (pop: 22900) -> earthquake is near!
54 km northeast of Phon Portland (Maine) (pop number: 66900) -> earthquake is near!
54 km northeast of Phon South Portland (Maine) (bang: 25600) -> earthquake is near!
828 km northeast of Fon Washington, District of Columbia) (pop: 601700) -> Near earthquake!
thick clouds 20.3 °C (68 F), humidity: 84%, wind: 3 m/s (6 knots) from ESE
Primary data source: volcano discovery
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04008 (0 km northeast of the epicenter) [Map] / Weak shake (MMI III) / Horizontal swing (lateral) / 1-2 seconds : My house shook as if I lived in Auburn near the railroad tracks. Sitting on the couch it started shaking slightly for about 2 seconds and then shook again after about 30 seconds for about 3 seconds.
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