Friday, March 11, 2011

Largest and Deadliest Earthquakes in History

Largest earthquakes by magnitude

Pos.↓ Date↓ Location↓ Name↓ Magnitude↓
1 May 22, 1960 Valdivia, Chile 1960 Valdivia earthquake 9.5
2 March 27, 1964 Prince William Sound, USA 1964 Alaska earthquake 9.2
3 December 26, 2004 Sumatra, Indonesia 2004 Indian Ocean earthquake 9.1
4 November 4, 1952 Kamchatka, Russia (then USSR) Kamchatka earthquakes 9.0 [1]
5 August 13, 1868 Arica, Chile (then Peru) 1868 Arica earthquake 9.0 [2]
6 January 26, 1700 Cascadia subduction zone, Canada and USA 1700 Cascadia earthquake 9.0
7 March 11, 2011 Tōhoku region, Japan 2011 Sendai earthquake 8.9
8 February 27, 2010 Maule, Chile 2010 Chile earthquake 8.8
9 January 31, 1906 EcuadorColombia 1906 Ecuador-Colombia earthquake 8.8
10 November 25, 1833 Sumatra, Indonesia 1833 Sumatra earthquake 8.8
11 February 4, 1965 Rat Islands, Alaska, USA 1965 Rat Islands earthquake 8.7
12 November 1, 1755 Lisbon, Portugal 1755 Lisbon earthquake 8.7 [3]
13 July 8, 1730 Valparaiso, Chile 1730 Valparaiso earthquake 8.7 [4]
14 March 28, 2005 Sumatra, Indonesia 2005 Sumatra earthquake 8.6
15 March 9, 1957 Andreanof Islands, Alaska, USA 1957 Andreanof Islands earthquake 8.6
16 August 15, 1950 Assam, India – Tibet, China 1950 Medog earthquake 8.6
17 September 12, 2007 Sumatra, Indonesia September 2007 Sumatra earthquakes 8.5
18 October 13, 1963 Kuril Islands, Russia (USSR) 1963 Kuril Islands earthquake 8.5 [5]
19 February 1, 1938 Banda Sea, Indonesia (Dutch East Indies) 1938 Banda Sea earthquake 8.5
20 February 3, 1923 Kamchatka, Russia (USSR) Kamchatka earthquakes 8.5 [5]
21 November 11, 1922 Atacama Region, Chile 1922 Vallenar earthquake 8.5 [6]
22 May 24, 1751 Concepción, Chile (Kingdom of Chile) 1751 Concepción earthquake 8.5
23 October 20, 1687 Lima, Peru (Viceroyalty of Peru) 1687 Peru earthquake 8.5
24 December 16, 1575 Valdivia, Chile (Kingdom of Chile) 1575 Valdivia earthquake 8.5

[edit] Deadliest earthquakes on record

Deadliest earthquakes[7]
Rank↓ Name↓ Date↓ Location↓ Fatalities↓ Magnitude↓ Comments
1 "Shaanxi" January 23, 1556 Shaanxi, China 820,000– 830,000 (est.)[8] 8.0 Estimated death toll in Shaanxi, China.
2 "Tangshan" July 28, 1976 Tangshan, China 242,419– 779,000 7.5 Estimated death toll as high as 779,000.
3 "Antioch" May 21, 525 Antioch, Turkey (then Byzantine Empire) 250,000 [9] 8 Procopius (II.14.6), sources based on John of Ephesus.
4 "Gansu" December 16, 1920 NingxiaGansu, China 235,502[10] 7.8 Major fractures, landslides.
5 "Indian Ocean" December 26, 2004 Sumatra, Indonesia 230,000+[11][12] 9.1 Deaths from earthquake and resulting tsunami.
6 "Aleppo" October 11, 1138 Aleppo, Syria 230,000 8.5 The figure of 230,000 dead is based on a historical conflation of this earthquake with earthquakes in November 1137 on the Jazira plain and the large seismic event of 30 September 1139 in the Azerbaijani city of Ganja. The first mention of a 230,000 death toll was by Ibn Taghribirdi in the fifteenth century.[13]
7 "Haiti" January 12, 2010 Haiti 222,570 (Haitian sources)50,000-92,000 (non-Haitian sources) 7.0 Estimate June 2010.[14]
8 "Great Kantō" September 1, 1923 Kantō region, Japan 142,000 7.9 An earthquake which struck the Kantō plain on the Japanese main island of Honshū at 11:58 on the morning of September 1, 1923. Varied accounts hold that the duration of the earthquake was between 4 and 10 minutes. The quake had an epicenter deep beneath Izu Ōshima Island in Sagami Bay. It devastated Tokyo, the port city of Yokohama, surrounding prefectures of Chiba, Kanagawa, and Shizuoka, and caused widespread damage throughout the Kantō region.[15] The power and intensity of the earthquake is easy to underestimate, but the 1923 earthquake managed to move the 93-ton Great Buddha statue at Kamakura. The statue slid forward almost two feet.[16] Casualty estimates range from about 100,000 to 142,000 deaths, the latter figure including approximately 40,000 who went missing and were presumed dead.
9 "Ashgabat" October 6, 1948 Ashgabat, Turkmenistan 110,000 7.3
10 "Genroku" December 31, 1703 Edo, Japan 108,800+ 8 This earthquake shook Edo and killed an estimated 2,300 people. The earthquake is thought to have been an interplate earthquake whose focal region extended from Sagami Bay to the tip of the Bōsō Peninsula as well as the area along the Sagami Trough in the open sea southeast of the Boso Peninsula. This earthquake then resulted in a tsunami which hit the coastal areas of the Boso Peninsula and Sagami Bay. This caused more than 6,500 deaths, particularly on the Boso Peninsula. The Habu Pond on Izu Ōshima collapsed and it rushed into the sea. The tsunami was reported to have caused more than 100,000 fatalities.
11 "Lisbon" November 1, 1755 Lisbon, Portugal 10,000–
100,000
7.3 Includes several thousands of deaths in Morocco and Spain

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