1946 Valais earthquake
UTC time | 1946-01-25 17:31:50 |
---|---|
ISC event | 898227 |
USGS-ANSS | ComCat |
Local date | 25 January 1946 |
Local time | 17:32 CET |
Magnitude | 6.2 Mw |
Epicenter | 46°24′N 7°30′E / 46.4°N 7.5°E |
Max. intensity | MMI VIII (Severe) |
Aftershocks | Three recorded. The largest was a 5.9 Mw |
Casualties | 3 dead in Switzerland 1 dead in France |
The 1946 Valais earthquake struck on 25 January at 17:32 local time with an epicenter region in Sierre, near the capital city of Sion in Valais, a canton in Switzerland. The earthquake had an estimated moment magnitude (Mw ) of 6.2 and a maximum Modified Mercalli intensity of VIII (Severe).[1][2][3]
Earthquake
The earthquake immediately disrupted the supply of power in
Foreshocks and aftershocks
Three large aftershocks were recorded up till May 1946. The first two measured 5.2 and 5.1 on 26 January and 4 February were assigned maximum intensities VI to V. The largest occurred on May 30 with a magnitude of Mw 5.9 and maximum intensity of VII.[3] The aftershock on May 30 triggered 22 rockfalls and three landslides.[7]
Prior to the mainshock, two notable foreshocks occurred on November 10 and 13 with respective intensities V and IV on the
See also
References
- ^ "Earthquake Catalog of Switzerland 2009". ecos09.seismo.ethz.ch. Swiss Seismological Service. Retrieved 2 September 2021.
- . Retrieved 2 September 2021.
- ^ a b ISC (27 June 2022), ISC-GEM Global Instrumental Earthquake Catalogue (1900–2009), Version 9.1, International Seismological Centre
- ^ "Sierre 1946". seismo.ethz.ch. Swiss Seismological Service. Retrieved 2 September 2021.
- ^ "Vor 75 Jahren erschütterte ein gewaltiges Erdbeben das Wallis". Telebasel Report (in German). 25 January 2021. Archived from the original on 2 September 2021. Retrieved 2 September 2021.
- S2CID 129575031.
- S2CID 129867266.