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Event status: uncertain [?]

Reported quake or seismic-like event: 1.1 mi northeast of Pottstown, Montgomery County, Pennsylvania, USA, Thursday, May 26, 2022 at 8:03 pm (GMT -4) -

Reported quake or seismic-like event: 1.1 mi northeast of Pottstown, Montgomery County, Pennsylvania, USA, Thursday, May 26, 2022 at 8:03 pm (GMT -4) Reported quake or seismic-like event: 1.1 mi northeast of Pottstown, Montgomery County, Pennsylvania, USA, Thursday, May 26, 2022 at 8:03 pm (GMT -4)
27 May 00:21 UTC: First to report: VolcanoDiscovery after 18 minutes.

Earthquake details

Date & timeMay 27, 2022 00:03:58 UTC -
Local time at epicenterThursday, May 26, 2022 at 8:03 pm (GMT -4)
Statusuncertain
Magnitudeunknown (3.6?)
Depth20.0 km
Epicenter latitude / longitude40.2528°N / 75.63171°W (Montgomery County, Pennsylvania, United States)
Antipode40.253°S / 104.368°E
Shaking intensityWeak shaking
Felt4 reports
Primary data sourceVolcanoDiscovery (User-reported shaking)
Nearby towns and cities2 km (1 mi) ENE of Pottstown (pop: 22,700) | Show on map | Quakes nearby
10 km (6 mi) WNW of Limerick (pop: 18,100) | Show on map | Quakes nearby
17 km (10 mi) NW of Phoenixville (pop: 16,700) | Show on map | Quakes nearby
27 km (17 mi) ESE of Reading (pop: 87,900) | Show on map | Quakes nearby
29 km (18 mi) WNW of Norristown (pop: 34,400) | Show on map | Quakes nearby
41 km (26 mi) SSW of Northampton (pop: 120,200) | Show on map | Quakes nearby
52 km (32 mi) NW of Philadelphia (pop: 1,567,400) | Show on map | Quakes nearby
193 km (120 mi) NE of Washington (District of Columbia) (pop: 601,700) | Show on map | Quakes nearby
Weather at epicenter at time of quakeMist 19.4°C (67 F), humidity: 83%, wind: 2 m/s (4 kts)
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Seismograms

Seismic station: Greenville, DE, USA (GEDE/LD network) | Distance from quake: 49 km / 31 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 (4)

User reports estimate the perceived ground shaking intensity according to the MMI (Modified Mercalli Intensity) scale.
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pottstown pa (1.5 km SW of epicenter) [Map] / Weak shaking (MMI III) : Sitting on second floor bedroom floor and my vanity and bathroom door vibrated neighbors around us all came out cause they felt it to! | 7 users found this interesting.  
Washington county PA / Very weak shaking (MMI II) / rattling, vibrating / 2-5 s : My son (35)and I(63) live in a mobile home and both of us said at the same time “did you feel that??” Shortly after 8pm! | 4 users found this interesting.  
Pottstown, PA (2 km WNW of epicenter) [Map] / Weak shaking (MMI III) / single lateral shake / 1-2 s : I heard the shake around 8-830 today, 5/26/22. It last 2-3 seconds. | 4 users found this interesting.  
Pottstown pa (2.8 km E of epicenter) [Map] / Weak shaking (MMI III) : Out of nowhere shaking just boomed and I felt it in my body | 4 users found this interesting.  

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