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Light mag. 3.1 earthquake - 20 km east of Sion, Valais, Switzerland, on Monday, Jul 4, 2022 at 8:58 am (GMT +2) -

Light mag. 3.1 earthquake - 20 km east of Sion, Valais, Switzerland, on Monday, Jul 4, 2022 at 8:58 am (GMT +2) Light mag. 3.1 earthquake - 20 km east of Sion, Valais, Switzerland, on Monday, Jul 4, 2022 at 8:58 am (GMT +2)

Light magnitude 3.1 earthquake at 2 km depth

4 Jul 07:00 UTC: First to report: SED after 2 minutes.
4 Jul 07:43: Magnitude recalculated from 3.0 to 3.1. Hypocenter depth recalculated from 2.0 to 1.6 km (from 1.2 to 1 mi). Epicenter location corrected by 1.1 km (0.7 mi) towards S.
... [show all] ...
4 Jul 13:14: Epicenter location corrected by 1.1 km (0.7 mi) towards S.
Update Mon, 4 Jul 2022, 07:06

Small 3.0 quake hits near Sion, Sion District, Valais, Switzerland

3.0 quake 20 km east of Sion, Valais, Switzerland, Jul 4, 2022 8:58 am (GMT +2)
3.0 quake 20 km east of Sion, Valais, Switzerland, Jul 4, 2022 8:58 am (GMT +2)
A very shallow magnitude 3.0 earthquake was reported in the morning near Sion, Sion District, Valais, Switzerland.
According to the Swiss Seismological Service (SED), the quake hit on Monday, July 4th, 2022, at 8:58 am local time at a very shallow depth of 2 km. Shallow earthquakes are felt more strongly than deeper ones as they are closer to the surface. The exact magnitude, epicenter, and depth of the quake might be revised within the next few hours or minutes as seismologists review data and refine their calculations, or as other agencies issue their report.
A second report was later issued by the European-Mediterranean Seismological Centre (EMSC), which listed it as a magnitude 3.0 earthquake as well.
Based on the preliminary seismic data, the quake should not have caused any significant damage, but was probably felt by many people as light vibration in the area of the epicenter.
Weak shaking might have been felt in Chandolin (pop. 79) located 2 km from the epicenter, and Chippis (pop. 1,600) 8 km away.
Other towns or cities near the epicenter where the quake might have been felt as very weak shaking include Leuk (pop. 3,400) located 9 km from the epicenter, Sierre (pop. 15,800) 9 km away, Chalais (pop. 2,700) 9 km away, Randogne (pop. 3,200) 12 km away, Lens (pop. 3,500) 14 km away, Sion (pop. 28,000) 20 km away, and Visp (pop. 6,600) 21 km away.

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Earthquake details

Date & timeJul 4, 2022 06:58:40 UTC -
Local time at epicenterMonday, Jul 4, 2022 at 8:58 am (GMT +2)
Depth2.2 km
Epicenter latitude / longitude46.23°N / 7.62°E (Sierre District, Valais, Switzerland)
Antipode46.23°S / 172.38°W
Shaking intensityVery weak shaking
Felt3 reports
Primary data sourceSED (Swiss Seismological Service)
Nearby towns and cities3 km (2 mi) SE of Chandolin (pop: 79) | Show on map | Quakes nearby
9 km (6 mi) SE of Sierre (Wallis) (pop: 15,800) | Show on map | Quakes nearby
15 km (10 mi) WNW of St. Niklaus VS (Wallis) (pop: 2,350) | Show on map | Quakes nearby
17 km (10 mi) S of Leukerbad (Leuk, Wallis) (pop: 1,430) | Show on map | Quakes nearby
20 km (13 mi) E of Sion (pop: 28,000) | Show on map | Quakes nearby
21 km (13 mi) WSW of Visp (pop: 6,580) | Show on map | Quakes nearby
25 km (16 mi) NNW of Zermatt (Wallis) (pop: 6,630) | Show on map | Quakes nearby
81 km (50 mi) S of Berna (Canton de Berne) (pop: 121,600) | Show on map | Quakes nearby
Weather at epicenter at time of quakeOvercast Clouds 5.8°C (42 F), humidity: 76%, wind: 2 m/s (3 kts) from W
Estimated seismic energy released2.8 x 109 joules (783 kilowatt hours, equivalent to 0.674 tons of TNT) | about seismic energy
Show interactive Map
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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.
3.12.2 kmSwitzerland: Sierre VSSED
2.610.4 kmSwitzerland: Confine Italia-Svizzera (SVIZZERA)INGV
3.12 kmSwitzerlandRaspberryShake
3.12 kmSwitzerland: Sierre / SchweizZAMG


Seismic station: Lac de Senin, Sanetsch, VS (SENIN/CH network) | Distance from quake: 29 km / 18 mi | Show on map | Station Info
Seismic station Lac de Senin, Sanetsch, VS: 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
Show more

User reports for this quake (4)

User reports estimate the perceived ground shaking intensity according to the MMI (Modified Mercalli Intensity) scale.
Leave a comment if you find a particular report interesting or want to add to it.
Flag as inappropriate.
Mark as helpful or interesting.
Send your own user report!
Sierre / Very weak shaking (MMI II) / horizontal (sideways) swinging / 1-2 s : Bringt der Hausbau nebenan unser Haus in Instabilität/ins Rutschen, oder war das ein Erdbeben? | One user found this interesting.  
Wädenswil / not felt
Evolène / Very weak shaking (MMI II) / single lateral shake / 1-2 s
Susten / Very weak shaking (MMI II) / single lateral shake / 2-5 s

Earlier earthquakes in the same area

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