Event status: unconfirmed [?]

Unconfirmed earthquake or seismic-like event: melillaendeu ju, 32 mi northeast of Washington, Washington DC, USA, Thursday, Dec 30, 2021 at 11:22 am (GMT -5) -

Unconfirmed earthquake or seismic-like event: melillaendeu ju, 32 mi northeast of Washington, Washington DC, USA, Thursday, Dec 30, 2021 at 11:22 am (GMT -5) Unconfirmed earthquake or seismic-like event: melillaendeu ju, 32 mi northeast of Washington, Washington DC, USA, Thursday, Dec 30, 2021 at 11:22 am (GMT -5)
30 Dec 16:34 UTC: First to report: VolcanoDiscovery after 12 minutes.

Earthquake details

Date & timeDec 30, 2021 16:22:24 UTC -
Local time at epicenterThursday, Dec 30, 2021 at 11:22 am (GMT -5)
Statusunconfirmed
Magnitudeunknown (3?)
Depth10.0 km
Epicenter latitude / longitude39.23733°N / 76.62107°W (Anne Arundel, melillaendeu ju, United States)
Antipode39.237°S / 103.379°E
Shaking intensityWeak shaking
Felt18 reports
Primary data sourceVolcanoDiscovery (User-reported shaking)
Nearby towns and cities52 km (32 mi) NE of Washington (District of Columbia) (pop: 601,700) | Show on map | Quakes nearby
Weather at epicenter at time of quakeMist 9.9°C (50 F), humidity: 96%, wind: 0 m/s (1 kts) from ESE
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User reports for this quake (20)

User reports estimate the perceived ground shaking intensity according to the MMI (Modified Mercalli Intensity) scale.
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21227 (3.1 km W of epicenter) [Map] / Weak shaking (MMI III) / 5-10 s : Baboon boom sounded like a Sonic no sirens or anything heard it within a 15 mi radius reporting on Facebook | 4 users found this interesting. (reported through our app)  
Glen Burnie, Md / Light shaking (MMI IV) / single vertical bump / 1-2 s : It felt like an underground explosion | 6 users found this interesting.  
Brooklyn park, MD 21225 (1 km SSE of epicenter) [Map] / Light shaking (MMI IV) / single lateral shake / 1-2 s : feet by myself and neighbors in Brooklyn park MD 21225 | 4 users found this interesting.  
Glen Burnie (9.4 km S of epicenter) [Map] / not felt : It was an explosion in CSX tunnel in Curtis Bay | 3 users found this interesting.  
Glen Burnie, MD (8.9 km SE of epicenter) [Map] / Light shaking (MMI IV) / single lateral shake / 1-2 s : Abrupt and very loud boom. Like an explosion. The windows as house shook. | 3 users found this interesting.  
Riverside Park, Baltimore, MD (3.9 km NNE of epicenter) [Map] / Light shaking (MMI IV) / rattling, vibrating / very short : Light shaking | 3 users found this interesting.  
See map (4.7 km N of epicenter) [Map] / Weak shaking (MMI III) / 1-2 s : Unsure. Sounded like loud explosion. Checked site to see if it was an earthquake. | 3 users found this interesting.  
Brooklyn Park / Weak shaking (MMI III) / single lateral shake / very short : A pop and a whoosh, sort of. Windows creaked. | 3 users found this interesting.  
Essex , Maryland. / Light shaking (MMI IV) / rattling, vibrating / 5-10 s : Was walking outside felt shaking and a loud boom as something exploded. | 3 users found this interesting.  
Arbutus, MD (5 km WNW of epicenter) [Map] / Very weak shaking (MMI II) / single vertical bump / very short : Loud boom and shake | 2 users found this interesting.  
Dundalk / Light shaking (MMI IV) / rattling, vibrating / 2-5 s : Heavy vibrating on top of my head | 3 users found this interesting.  
Edmondson Village, Maryland / not felt : Not felt but I was nauseous all morning and now I feel fine. | 2 users found this interesting. (reported through our app)  
Essex / Weak shaking (MMI III) / rattling, vibrating / 2-5 s : got scared | 2 users found this interesting.  
Greensburg,PA / Very weak shaking (MMI II) / simple rolling (tilting sideways along one direction) / very short : I was standing at work and felt a roll that made me grab onto the desk in front of me. No reports had been made yet, so I wasn't sure if it was a quake or what!  
Arbutus, Baltimore County, Maryland (4.9 km W of epicenter) [Map] / Very weak shaking (MMI II) / 1-2 s
Capital Heights / Weak shaking (MMI III) / vibration and rolling / 20-30 s
Pasadena / Very weak shaking (MMI II) / rattling, vibrating / very short
Essex, MD 21221 / Weak shaking (MMI III) / vibration and rolling / 2-5 s
Glen Burnie / Very weak shaking (MMI II) / rattling, vibrating / 1-2 s
Pasadena / Very weak shaking (MMI II) / rattling, vibrating / very short
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