List of earthquakes in 1946

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This is a list of earthquakes in 1946. Only magnitude 6.0 or greater earthquakes appear on the list. Lower magnitude events are included if they have caused death, injury or damage. All dates are listed according to UTC time. Several great shocks affected the planet in 1946. The largest was one of the most significant in human terms. The quake itself was a magnitude 8.6 striking on April 1 in Alaska resulting in a tsunami mainly affecting Hawaii. The consequence of this apart from many deaths was the foundation of the Pacific Tsunami Warning Center. This organisation has helped to substantially reduce the death toll of tsunamis in the Pacific, although there have been a few exceptions, including the 2011 Japan event. Japan itself was heavily affected in 1946 by a large quake hitting in December, causing 1,362 deaths. The Dominican Republic was another nation that suffered great destruction in August. Turkey, Peru, and Turkmenistan all saw earthquakes causing many deaths. In general, 1946 was a busy year, with 22 events measuring above 7.0 and three exceeding a magnitude of 8.0.

Overall

By death toll

Rank Death toll Magnitude Location Depth (km) Date
1 1,790 8.0 Dominican Republic Samaná Bay, Dominican Republic 15.0 August 4
2 1,362 8.3 Japan off the south coast of Honshu, Japan 15.0 December 20
3 840 6.0 Turkey Erzurum Province, Turkey 35.0 May 31
4 800 6.8 Peru Ancash Region, Peru 15.0 November 10
5 400 6.9 Turkmenistan Balkan Region, Turkmenistan 37.9 November 4
6 264 6.0 Algeria Bordj Bou Arréridj Province, Algeria 35.0 February 12
7 167 8.6 United States south of Unimak Island, Alaska 15.0 April 1
8 75 7.0 Dominican Republic off the northern coast of the Dominican Republic 15.0 August 8
9 58 6.6 Taiwan north of Taiwan 25.0 December 4
10 12 5.6 Turkey Konya Province, Turkey 60.0 February 21
  • Note: At least 10 casualties

By magnitude

Rank Magnitude Death toll Location Depth (km) Date
1 8.6 167 United States south of Unimak Island, Alaska 15.0 April 1
2 8.3 1,362 Japan off the south coast of Honshu, Japan 15.0 December 20
3 8.0 0 Myanmar Sagaing Region, Burma 15.0 September 12
4 7.8 0 Myanmar Mandalay Region, Burma 35.0 September 12
4 7.8 0 Papua New Guinea southeast of New Ireland (island), Papua New Guinea 50.0 September 29
5 7.6 0 Kyrgyzstan Jalal-Abad Region, Kyrgyzstan 35.0 November 2
6 7.5 0 Canada Vancouver Island, Canada 15.0 June 23
6 7.5 1,790 Dominican Republic Samaná Bay, Dominican Republic 15.0 August 4
7 7.3 0 Indonesia Mentawai Islands, Indonesia 35.0 May 8
8 7.2 0 Papua New Guinea off the east coast of Papua New Guinea 100.0 January 17
8 7.2 0 Argentina Santiago del Estero Province, Argentina 580.0 August 28
8 7.2 0 Papua New Guinea Chimbu Province, Papua New Guinea 100.0 September 23
9 7.1 0 Mexico Chiapas, Mexico 100.0 June 7
9 7.1 0 Mexico Oaxaca, Mexico 130.0 July 11
10 7.0 0 Vanuatu Vanuatu 35.0 January 20
10 7.0 0 Vanuatu Vanuatu 170.0 July 9
10 7.0 75 Dominican Republic off the northern coast of the Dominican Republic 15.0 August 8
10 7.0 0 Fiji south of Fiji 100.0 August 21
10 7.0 0 Fiji south of Fiji 600.0 September 26
10 7.0 0 Peru Lima Region, Peru 70.0 September 30
10 7.0 0 Dominican Republic La Altagracia Province, Dominican Republic 50.0 October 4
10 7.0 0 United States Andreanof Islands, Alaska 25.0 November 1
  • Note: At least 7.0 magnitude

Notable events

January

  • Guatemala A magnitude 6.0 earthquake struck Quiché Department, Guatemala on January 5 at a depth of 210.0 km.[1]
  • Vanuatu A magnitude 6.9 earthquake struck Vanuatu on January 5 at a depth of 35.0 km.[2]
  • China A magnitude 6.8 earthquake struck Heilongjiang Province, China on January 11 at a depth of 581.2 km.[3]
  • United States A magnitude 6.6 earthquake struck the Gulf of Alaska on January 12 at a depth of 20.0 km.[4]
  • Papua New Guinea A magnitude 7.2 earthquake struck off the east coast of Papua New Guinea on January 17 at a depth of 100.0 km.[5]
  • Vanuatu A magnitude 7.0 earthquake struck Vanuatu on January 20 at a depth of 35.0 km.[6]
  • Switzerland A magnitude 6.0 earthquake struck the Canton of Bern, Switzerland on January 25 at a depth of 35.0 km. This was a rare large quake for the area.[7]

February

March

  • A magnitude 6.5 earthquake struck southern East Pacific Rise on March 12 at a depth of 35.0 km.[15]
  • Iran An earthquake struck Bushehr Province, Iran on March 12. The magnitude and depth were unknown. Heavy damage was reported.[16]
  • A magnitude 6.2 earthquake struck central California on March 15 at a depth of 35.0 km.[17]
  • Cuba A magnitude 6.0 earthquake struck southeast of Cuba on March 25 at a depth of 35.0 km.[18]
  • Indonesia A magnitude 6.8 earthquake struck off the coast of Bengkulu (city), Sumatra, Indonesia on March 26 at a depth of 45.0 km.[19]

April

  • A giant magnitude 8.6 earthquake struck south of Unimak Island, Alaska on April 1 at a depth of 15.0 km. This quake caused one of the worst tsunamis of all time. The disaster prompted the establishment of the Pacific Tsunami Warning Center in 1949. One-hundred and sixty-seven people were killed (mostly on Hawaii) and $26 million (1946 rate) in damage was caused.[20][21]
  • Greece A magnitude 6.0 earthquake struck southwest of Crete, Greece on April 5 at a depth of 100.0 km.[22]
  • A magnitude 6.0 earthquake struck the Mid-Indian Ridge on April 6 at a depth of 35.0 km.[23]
  • A magnitude 6.6 earthquake struck the central Mid-Atlantic Ridge on April 11 at a depth of 15.0 km.[24]
  • Fiji A magnitude 6.0 earthquake struck Fiji on April 13 at a depth of 250.0 km.[25]
  • A magnitude 6.8 earthquake struck the Southeast Indian Ridge on April 23 at a depth of 35.0 km.[26]
  • Russia A magnitude 6.2 earthquake struck the Sea of Okhotsk, Russia on April 26 at a depth of 600.0 km.[27]

May

June

July

  • Vanuatu A magnitude 7.0 earthquake struck Vanuatu on July 9 at a depth of 170.0 km.[43]
  • Mexico A magnitude 7.1 earthquake struck Oaxaca, Mexico on July 11 at a depth of 130.0 km.[44]
  • United States A magnitude 6.8 earthquake struck the Fox Islands (Alaska) on July 12 at a depth of 100.0 km.[45]
  • Chile A magnitude 6.3 earthquake struck off the coast of Tarapacá Region, Chile on July 26 at a depth of 70.0 km.[46]
  • New Caledonia A magnitude 6.2 earthquake struck southeast of the Loyalty Islands on July 26 at a depth of 120.0 km.[47]
  • Barbados A magnitude 6.0 earthquake struck southwest of Barbados on July 31 at a depth of 50.0 km.[48]

August

September

October

  • Russia A magnitude 6.5 earthquake struck southern Kamchatka Krai, Russia on October 2 at a depth of 38.2 km.[69]
  • Russia A magnitude 6.3 earthquake struck southern Kamchatka Krai, Russia on October 2 at a depth of 34.3 km. This was within two hours of the larger event.[70]
  • Dominican Republic A magnitude 7.0 earthquake struck La Altagracia Province, Dominican Republic on October 4 at a depth of 50.0 km.[71]
  • Fiji A magnitude 6.8 earthquake struck south of Fiji on October 8 at a depth of 670.0 km.[72]
  • Bolivia A magnitude 6.0 earthquake struck Potosí Department, Bolivia on October 13 at a depth of 200.0 km.[73]
  • New Zealand A magnitude 6.2 earthquake struck the Kermadec Islands, New Zealand on October 14 at a depth of 40.0 km.[74]
  • Vanuatu A magnitude 6.8 earthquake struck Vanuatu on October 22 at a depth of 220.0 km.[75]
  • Fiji A magnitude 6.0 earthquake struck Fiji on October 24 at a depth of 570.0 km.[76]
  • Russia A magnitude 6.5 earthquake struck eastern Kamchatka Krai, Russia on October 25 at a depth of 140.0 km.[77]
  • A magnitude 6.4 earthquake struck the Scotia Sea on October 26 at a depth of 10.0 km.[78]
  • United States A magnitude 6.5 earthquake struck south of Unimak Island, Alaska on October 30 at a depth of 30.0 km.[79]

November

  • United States A magnitude 7.0 earthquake struck the Andreanof Islands, Alaska on November 1 at a depth of 25.0 km.[80]
  • Solomon Islands A magnitude 6.2 earthquake struck the Solomon Islands on November 1 at a depth of 80.0 km.[81]
  • Kyrgyzstan A magnitude 7.6 earthquake struck Jalal-Abad Region, Kyrgyzstan on November 2 at a depth of 35.0 km. Surprisingly in spite of the size no deaths were reported. However some damage was caused.[82][83]
  • Turkmenistan A magnitude 6.9 earthquake struck the Balkan Region, Turkmenistan on November 4 at a depth of 37.9 km. Four-hundred people were killed and major damage was caused.[84][85]
  • China A magnitude 6.4 earthquake struck western Xizang, China on November 6 at a depth of 25.0 km.[86]
  • Argentina A magnitude 6.2 earthquake struck San Juan Province, Argentina on November 10 at a depth of 120.0 km.[87]
  • Peru A magnitude 6.8 earthquake struck Ancash Region, Peru on November 10 at a depth of 15.0 km. Eight-hundred people were killed and major damage was reported.[88][89]
  • Tonga A magnitude 6.9 earthquake struck Tonga on November 12 at a depth of 15.0 km.[90]
  • Indonesia A magnitude 6.5 earthquake struck the Banda Sea, Indonesia on November 17 at a depth of 100.0 km.[91]
  • A magnitude 6.0 earthquake struck the Owen Fracture Zone on November 17 at a depth of 35.0 km.[92]
  • Fiji A magnitude 6.2 earthquake struck south of Fiji on November 18 at a depth of 600.0 km.[93]
  • Tonga A magnitude 6.9 earthquake struck north of Vavaʻu, Tonga on November 28 at a depth of 290.0 km.[94]

December

  • Taiwan A magnitude 6.6 earthquake struck north of Taiwan on December 4 at a depth of 25.0 km. Fifty-eight people were killed, 384 were injured, and 700 homes collapsed.[95][96]
  • Vanuatu A magnitude 6.0 earthquake struck northern Espiritu Santo, Vanuatu on December 7 at a depth of 120.0 km.[97]
  • Japan A magnitude 6.0 earthquake struck the Sea of Japan on December 10 at a depth of 100.0 km.[98]
  • Fiji A magnitude 6.0 earthquake struck Fiji on December 10 at a depth of 620.0 km.[99]
  • Fiji A magnitude 6.5 earthquake struck Fiji on December 17 at a depth of 580.0 km.[100]
  • Taiwan A magnitude 6.8 earthquake struck east of Taiwan on December 19 at a depth of 100.0 km.[101]
  • Japan A giant magnitude 8.3 earthquake struck off the south coast of Honshu, Japan on December 20 at a depth of 15.0 km. This was one of the largest quakes to hit Japan. This came two years after a similar magnitude quake in the same area. The south coast of Honshu is vulnerable to Nankai megathrust earthquakes. In this event 1,362 people were killed and 14,259 homes were destroyed. A tsunami washed the shoreline contributing to the devastation.[102][103]
  • Russia A magnitude 6.9 earthquake struck east of the Kuril Islands, Russia on December 21 at a depth of 20.0 km.[104]
  • Papua New Guinea A magnitude 6.2 earthquake struck the Bismarck Sea on December 24 at a depth of 35.0 km.[105]
  • United States A magnitude 6.5 earthquake struck the Rat Islands, Alaska on December 25 at a depth of 90.0 km.[106]

References

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