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Event status: disregarded [?]

Reported seismic-like event (likely no quake): 20 mi northeast of Rexburg, Madison County, Idaho, USA, Friday, Sep 23, 2022 at 8:16 am (GMT -6) -

Reported seismic-like event (likely no quake): 20 mi northeast of Rexburg, Madison County, Idaho, USA, Friday, Sep 23, 2022 at 8:16 am (GMT -6) Reported seismic-like event (likely no quake): 20 mi northeast of Rexburg, Madison County, Idaho, USA, Friday, Sep 23, 2022 at 8:16 am (GMT -6)
23 Sep 18:35 UTC: First to report: VolcanoDiscovery after 4 hours.

Earthquake details

Date & timeSep 23, 2022 14:16:00 UTC -
Local time at epicenterFriday, Sep 23, 2022 at 8:16 am (GMT -6)
Magnitudeunknown (3?)
Depth10.0 km
Epicenter latitude / longitude43.997°N / 111.474°W (Fremont, Idaho, United States)
Antipode43.997°S / 68.526°E
Shaking intensityVery weak shaking
Felt1 report
Primary data sourceVolcanoDiscovery (User-reported shaking)
Nearest volcanoYellowstone (80 km / 50 mi)
Nearby towns and cities9 km (5 mi) SSW of Ashton (pop: 1,050) | Show on map | Quakes nearby
17 km (11 mi) ENE of Saint Anthony (pop: 3,540) | Show on map | Quakes nearby
32 km (20 mi) NE of Rexburg (Madison County) (pop: 27,700) | Show on map | Quakes nearby
42 km (26 mi) NW of Driggs (pop: 1,690) | Show on map | Quakes nearby
51 km (31 mi) NE of Rigby (pop: 4,030) | Show on map | Quakes nearby
71 km (44 mi) NNE of Ammon (Bonneville County) (pop: 15,000) | Show on map | Quakes nearby
74 km (46 mi) NE of Idaho Falls (pop: 59,200) | Show on map | Quakes nearby
382 km (237 mi) E of Boise (pop: 146,000) | Show on map | Quakes nearby
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Seismic station: Flagg Ranch, Wyoming, USA (FLWY/IW network) | Distance from quake: 63 km / 39 mi | Show on map | Station Info
Seismic station Flagg Ranch, Wyoming, 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 (1)

User reports estimate the perceived ground shaking intensity according to the MMI (Modified Mercalli Intensity) scale.
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Tetonia, Idaho (35.7 km SE of epicenter) [Map] / Very weak shaking (MMI II) / single lateral shake / 1-2 s : A very loud boom which sounded like an explosion. Followed by shaking.  

Earlier earthquakes in the same area

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