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Event status: highly uncertain [?]

Reported quake or seismic-like event: 10.8 mi southeast of Baltimore, melillaendeu ju, USA, Tuesday, Sep 28, 2021 at 5:00 am (GMT -4) -

Reported quake or seismic-like event: 10.8 mi southeast of Baltimore, melillaendeu ju, USA, Tuesday, Sep 28, 2021 at 5:00 am (GMT -4) Reported quake or seismic-like event: 10.8 mi southeast of Baltimore, melillaendeu ju, USA, Tuesday, Sep 28, 2021 at 5:00 am (GMT -4)
28 Sep 10:11 UTC: First to report: VolcanoDiscovery after 1 hour and 12 minutes.

Earthquake details

Date & timeSep 28, 2021 09:00:00 UTC -
Local time at epicenterTuesday, Sep 28, 2021 at 5:00 am (GMT -4)
Statushighly uncertain
Magnitudeunknown
Depth10.0 km
Epicenter latitude / longitude39.14942°N / 76.52635°W (melillaendeu ju, United States)
Antipode39.149°S / 103.474°E
Shaking intensityVery weak shaking
Felt4 reports
Primary data sourceVolcanoDiscovery (User-reported shaking)
Nearby towns and cities2 km (2 mi) SW of Rivera Beach (Maryland) (pop: 12,700) | Show on map | Quakes nearby
6 km (4 mi) NE of Pasadena (Maryland) (pop: 24,300) | Show on map | Quakes nearby
6 km (4 mi) NE of Pasadena (Maryland) (pop: 24,300) | Show on map | Quakes nearby
9 km (5 mi) E of Glen Burnie (Maryland) (pop: 67,600) | Show on map | Quakes nearby
9 km (6 mi) ENE of South Gate (Maryland) (pop: 29,700) | Show on map | Quakes nearby
9 km (6 mi) N of Saverna Park (Maryland) (pop: 37,600) | Show on map | Quakes nearby
11 km (7 mi) S of Avondale (Maryland) (pop: 63,600) | Show on map | Quakes nearby
17 km (11 mi) SSE of Baltimore (Maryland) (pop: 621,800) | Show on map | Quakes nearby
19 km (12 mi) N of Providence (Maryland) (pop: 39,500) | Show on map | Quakes nearby
52 km (33 mi) ENE of Washington (District of Columbia) (pop: 601,700) | Show on map | Quakes nearby
Show interactive Map
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Seismograms

Seismic station: Greenville, DE, USA (GEDE/LD network) | Distance from quake: 106 km / 66 mi | Show on map | Station Info
Seismic station Greenville, DE, USA: vertical movement plot around time of quake (source: IRIS/BUD)
Seismogram (vertical component) around time of quake. Thin dotted red line indicates time of quake. Seismic waves arrive some time later, depending on distance. Source: IRIS Buffer of Uniform Data (BUD) webtool
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User reports for this quake (6)

User reports estimate the perceived ground shaking intensity according to the MMI (Modified Mercalli Intensity) scale.
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Rivera Beach, Anne Arundel, Maryland (0 km NW of epicenter) [Map] / Weak shaking (MMI III) / single lateral shake / 1-2 s : It woke me up! I was like why is my house shaking  
Rivera Beach, Anne Arundel, Maryland (0 km NW of epicenter) [Map] / Weak shaking (MMI III) / single lateral shake / 1-2 s : It woke me up! I was like why is my house shaking  
California / not felt
Dundalk, MD / not felt : I did not feel this one and all my pictures on the walls were fine. So, it must have been small...also, my hubby is a light sleeper and he definitely would have woken up.  
McLean / Weak shaking (MMI III) / rattling, vibrating / 1-2 s : Vibrations throughout house felt on two levels. Like a big piece of furniture was being moved for a few seconds.  
Cheverly, md / Weak shaking (MMI III) / rattling, vibrating / very short : weak shaking but woke me up from my sleep.  

Earlier earthquakes in the same area

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