Weak mag. 2.3 earthquake - 7 Km NW of Medford, Oklahoma, on Friday, May 20, 2022 at 4:40 am (GMT -5) -
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Weak magnitude 2.3 earthquake at 8 km depth
20 May 09:43 UTC: First to report: USGS after 2 minutes.
20 May 09:47: Magnitude recalculated from 2.3 to 2.5. Hypocenter depth recalculated from 2.4 to 1.8 km (from 1.5 to 1.1 mi).
20 May 12:56: Magnitude recalculated from 2.5 to 2.3. Hypocenter depth recalculated from 1.8 to 7.7 km (from 1.1 to 4.8 mi). Epicenter location corrected by 0.6 km (0.3 mi) towards WSW.
20 May 09:47: Magnitude recalculated from 2.3 to 2.5. Hypocenter depth recalculated from 2.4 to 1.8 km (from 1.5 to 1.1 mi).
20 May 12:56: Magnitude recalculated from 2.5 to 2.3. Hypocenter depth recalculated from 1.8 to 7.7 km (from 1.1 to 4.8 mi). Epicenter location corrected by 0.6 km (0.3 mi) towards WSW.
Earthquake details
| Date & time | May 20, 2022 09:40:56 UTC - |
| Local time at epicenter | Friday, May 20, 2022 at 4:40 am (GMT -5) |
| Status | Confirmed |
| Magnitude | 2.3 |
| Depth | 7.7 km |
| Epicenter latitude / longitude | 36.85417°N / 97.7865°W  (Oklahoma, United States) |
| Antipode | 36.854°S / 82.214°E |
| Shaking intensity | Very weak shaking |
| Felt | 0 reports |
| Primary data source | USGS (United States Geological Survey) |
| Nearby towns and cities | 7 km (4 mi) NW of Medford (pop: 987) | Show on map | Quakes nearby 25 km (16 mi) SW of Caldwell (Kansas) (pop: 1,030) | Show on map | Quakes nearby 40 km (25 mi) SE of Anthony (Kansas) (pop: 2,230) | Show on map | Quakes nearby 45 km (28 mi) W of Blackwell (pop: 6,880) | Show on map | Quakes nearby 47 km (29 mi) WNW of Tonkawa (pop: 3,130) | Show on map | Quakes nearby 52 km (32 mi) N of Enid (pop: 51,800) | Show on map | Quakes nearby 59 km (36 mi) SW of Wellington (Sumner County, Kansas) (pop: 7,990) | Show on map | Quakes nearby 65 km (40 mi) WNW of Ponca City (Kay County) (pop: 24,800) | Show on map | Quakes nearby |
| Weather at epicenter at time of quake | Scattered Clouds  24.9°C (77 F), humidity: 32%, wind: 11 m/s (22 kts) from SSW |
| Estimated seismic energy released | 1.8 x 108 joules (49.4 kilowatt hours) | about seismic energy |
Data for the same earthquake reported by different agencies
Info: The more agencies report about the same quake and post similar data, the more confidence you can have in the data. It takes normally up to a few hours until earthquake parameters are calculated with near-optimum precision.
| Mag. | Depth | Location | Source |
| 2.3 | 7.7 km | 7 Km NW of Medford, Oklahoma | USGS |
| 2.3 | 8 km | OKLAHOMA | EMSC |
| 2.3 | 7.7 km | Oklahoma | RaspberryShake |
User reports for this quake
At magnitude 2.3, such a quake wouldn't normally be felt by people except under very favorable conditions.User reports estimate the perceived ground shaking intensity according to the MMI (Modified Mercalli Intensity) scale.
Earlier earthquakes in the same area
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