Showing posts with label Largest Natural Disaster. Show all posts
Showing posts with label Largest Natural Disaster. Show all posts

List of Floods

List of Floods:
Death Toll Event Location Date
2,500,000–3,700,000[1] 1931 China floods China 1931
900,000–2,000,000 1887 Yellow River (Huang He) flood China 1887
500,000–700,000 1938 Yellow River (Huang He) flood China 1938
231,000 Banqiao Dam failure, result of Typhoon Nina. Approximately 86,000 people died from flooding and another 145,000 died during subsequent disease. China 1975
145,000 1935 Yangtze river flood China 1935
more than 100,000 St. Felix's Flood, storm surge Netherlands 1530
100,000 Hanoi and Red River Delta flood North Vietnam 1971
100,000 1911 Yangtze river flood China 1911
50,000–80,000 St. Lucia's flood, storm surge Netherlands 1287
60,000 North Sea flood, storm surge Netherlands 1212
40,000 1949 Eastern Guatemala flood Guatemala 1949
36,000 St. Marcellus flood, storm surge Netherlands 1219
30,000 1954 Yangtze river flood China 1954
28,700 1974 Bangladesh monsoon rain Bangladesh 1974
25,000–40,000 St. Marcellus flood / Grote Mandrenke, storm tide Netherlands, Germany, Denmark 1362
20,006 1999 Vargas mudslide Venezuela 1999
20,000 All Saints' Flood, storm surge Netherlands 1570
20,000 1939 Tianjin flood China 1939
14,000 Christmas flood, storm surge Netherlands, Germany, Denmark 1717
10,000–100,000 St. Elizabeth flood, storm surge Netherlands, Belgium 1421
8,000–15,000 Burchardi flood Germany, Denmark 1634
10,000 Great Iran Flood Iran 1954
10,000 1824 St. Petersburg flood Russia 1824
several thousands North Sea flood, storm surge Netherlands 1014
several thousands St. Juliana flood, storm surge Netherlands 1164
several thousands St. Agatha flood, storm surge Netherlands 1288
several thousands St. Clemens flood, storm surge Netherlands 1334
several thousands St. Mary Magdalene's flood Central Europe 1342
several thousands All Saints flood, storm surge Netherlands 1532
several thousands North Sea flood, storm surge Netherlands 1703
6,200 Sichuan, Hubei, Anhui flood China 1980
5,000 Cojup valley, Cordillera Blanca mountain range, landslide by massive avalanche Peru 1941
5,000–10,000 Rajputana flood India 1943
4,892 1968 Rajasthan, Gujarat monsoon rain India 1968
4,800 1951 Manchuria flood China 1951
3,838 1998 Eastern India, Bangladesh monsoon rain India, Bangladesh 1998
3,814 1989 Sichuan flood China 1989
3,800 1978 Northern India monsoon rain India 1978
3,656 1998 Yangtze river flood China 1998
3,500 1948 Fuzhou flood China 1948
3,084 1993 South Asian monsoon rain Nepal, India, Bangladesh, Pakistan 1993
3,076 2004 Eastern India, Bangladesh monsoon rain India, Bangladesh 2004
3,000 1992 Afghanistan flood, mainly, Gulbahar, Kalotak, Shutul, Parwan, flash flood, mudslide Afghanistan 1992
2,910 1950 Pakistan flood Pakistan 1950
2,775 1996 China flood, torrential floods, mud-rock flows China 1996
2,566 1953 Japan flood, mainly Kitakyushu, Kumamoto, Wakayama, Kizugawa, massive rain, flood, mudslide Japan 1953
2,400 North Sea flood, storm surge Netherlands 838
2,400 2008 Indian floods by monsoon rain India 2008
2,379 1988 Bangladesh monsoon rain Bangladesh 1988
2,200 Johnstown Flood United States (Pennsylvania) 1889
2,142 North Sea flood of 1953 storm surge Netherlands, United Kingdom 1953
2,075 1981 Sichuan, Shanxi Flood China 1981
2,055 1987 Bangladesh monsoon rain Bangladesh 1987
2,000–5,000 some reports list as many as 12,000 dead Morvi dam burst India (Morvi, Gujarat) 1979
2,000–4,000 Huascaran, Ranrahirca landslide by massive avalanche Peru 1962
2,000–3,000 Mostaganem and Oran flood Algeria 1927
2,000+ Bristol Channel floods, 1607 England and Wales; possible tsunami 1607
1,909 Vajont Dam landslide and flood Italy 1963
1,834 1992 Pakistan, Northern India monsoon rain Pakistan, India 1992
1,723 1991 China flood, mainly, Sichuan, Guizhou, Hubei, torrential floods, mud-rock flows China 1991
1,700 1955 Northern India flood India 1955
1,624 Fujian, Anhui, Zhejiang flood China 2005
1,605–3,363 spring flooding Haiti, Dominican Republic 2004
1600-2,000 Pakistan floods, monsoon flooding Pakistan 2010
1,558 St. Martin flood, storm surge Netherlands 1686
1,532 2002 China flood, torrential floods, mud-rock flows China 2002
1,503 Mumbai and the surrounding state Maharashtra, Karnataka, monsson rain India 2005
1,437 1995 China flood, mainly, Hunan, Jiangxi, Liaoning, Sichuan, Fujian, torrential rain, devastating floods, mud-rock flows China 1995
1,348 2007 China flood, mountain torrents, mud-rock flows China 2007
1,144 2006 Southern Leyte mudslide Philippines 2006
1,072+ 2010 China floods, landslides China, North Korea 2010
1,029 2004 China flood, mountain torrents, mud-rock flows, landslide China 2004
1,000 1961 Bihar flood India 1961
992 Isahaya, massive rain and mudslide Japan 1957
941 Inuyama Iruka pond failure Japan 1868
933 1938 Massive rain of Japan, mainly Tokyo, Kobe, massive rain and landslide Japan 1938
915 Barcelona, flash flood Spain 1962
894 January 2011 Rio de Janeiro floods and mudslides Brazil 2011
848 1977 Karachi flood Pakistan 1977
844 2006 North Korea flooding North Korea 2006
827 Algiers, Bab El Oued, devastating flood, mudslide Algeria 2001
800 North Sea flood, storm surge Netherlands 1825
800 2000 Mozambique flood Mozambique 2000
705 2006 Ethiopia flood, mainly Omo River Delta, Dire Dawa, Tena, Gode, flash flood, heavyrain Ethiopia 2006
702 1999 Vietnam flood, mainly occurred at Thua Thien Hue Vietnam 1999
677 2009 August 8 flood, due to Typhoon Morakot, An entire village of Shiaolin was buried at the southern county of Kaohsiung Taiwan 2009
672 1972 Seoul, Kyonggi flood South Korea 1972
653 1972 Luzon flood Philippines 1972
640 1987 Villatina landslide disaster Colombia 1987
610 2007 North Korea flooding North Korea 2007
540 1969 Tunisia flooding Tunisia 1969
532 Cuzco, Huallaga[disambiguation needed], torrential rain, flooding, landslide Peru 1982
517 1967 Massive rain of Japan, mainly, Kobe, Kure, Agano River, massive rain and landslide Japan 1967
506 KwaZulu-Natal South Africa 1987
500 Malawi, flash flood and landslide Malawi 1991
500 Gauldal, landslide Norway 1345
464 Lisbon flash flood Portugal 1967
445 Western Japan, massive rains and landslides Japan 1972
437 1967 Brazil flood, mainly Rio de Janeiro, Sao Paulo, flood and landslide Brazil 1967
429 2002 Nepal flood, mainly occurred at Makwanpur, monssnal rain, flood, landslide Nepal 2002
425 October 1999 Mexico floods, mainly occurred at Tabasco, Puebla, Chiapas, flood and mudslide as a result from Tropical Depression Eleven Mexico 1999
421 Malpasset Dam failure France 1959
420 St. Aarons Flood Amsterdam 1420
408 1969 South Korea flood, mainly, Gyeongsangbuk-do, Gyeongsangnam-do, Gangwon-do, torrential rain, landslide South Korea 1969
407 1993 Iran flood, mainly occurred at Isfahan, Bandar Abass, flash flood and landslide Iran 1993
405 1998 South Korea flood, heavy massive rain, landslide South Korea 1998
400 1955 Lebanon Tripoli flood Lebanon 1955
400 St. Francis Dam failure United States (California) 1928
386 Thailand, Malaysia, mainly, Nakhon, Songkhla, Kelantan, torrential rain Thailand, Malaysia, 1988
385 Ohio River flood of 1937 United States (Pennsylvania, Ohio, West Virginia, Kentucky, Indiana, Illinois) 1937
373 1966 Rio de Janeiro flood, flood and landslide Brazil 1966
364 Piura, Tumbes, torrential rain, flooding, landslide Peru 1983
360+ Great Dayton Flood United States 1913
360 1958 Buenos Aires flood Argentina 1958
353 2007 African Nations flood mainly Sudan, Nigeria, Burkina Faso, Ghana, Kenya, and many African country 2007
347 1996 Yemen flood Yemen 1996
345 1987 South Korea flood, mainly, Chungchongnam-do, Jeollanam-do, Kangwon, torrential rain, landslide South Korea 1987
342 2006 East African Flood Kenya, Ethiopia, Somalia 2006
315 North Sea flood of 1962 storm tide Germany 1962
313 2003 Sumatra flood, mainly Jambi, Batanghari, Tondano, torrential rain, flash flood, landslide Indonesia 2003
300-400 Flood in Miskolc, 1878 Miskolc, Hungary 1878
300 Quebrada Blanca canyon, landslide Colombia 1974
300 Pampayacta avalanche Peru 1963
299 Nagasaki, massive rain and landslide Japan 1982
290 Rio de Janeiro and Fluminense flood Brazil 1988
272 1973 Granada, Almeria, Murcia flood Spain 1973
270 Great Sheffield flood dam disaster United Kingdom 1864
268 Val di Stava dam disaster Italy 1985
261 Gormec, avalanche Turkey 1992
259 1966 Maian flood Jordan 1966
255 1998 Tajikistan flood Tajikistan 1998
250 Josefina dam failure Ecuador 1993
246+ April 2010 Rio de Janeiro floods and mudslides Rio de Janeiro, Brazil 2010
246 Great Mississippi Flood of 1927 United States (Arkansas, Illinois, Kentucky, Louisiana, Mississippi, Missouri, Tennessee, Texas, Oklahoma, Kansas) 1927
238 Black Hills flood United States 1972
235-244 2009 Philippine Floods[6] Philippines 2009
230 Marrakesh flash flood Morocco 1995
228 2007 Balochistan flood by Cyclone Yemyin Pakistan 2007
200–600 Chungar landslide, flood, avalanche Peru 1971
200+ 2008 South China floods South China 2008
200 Pamir Mountain area, mud and rock slides, torrential rain Tajikistan 1992
199 Santa Catarina, Tubarão, torrential heavy rain Brazil 1974
199 2009 El Salvador floods and mudslides El Salvador 2009
190 Huigra, landslide Ecuador 1931
172+ 2010 Salang avalanches Salang tunnel, Afghanistan 2010
172 1970 Recife and Pernambuco flood Brazil 1970
165 2004 Brazil flood, mainly Sao Paulo, Pemambuco, torrential rain, mudslide Brazil 2004
159 Sarno flood and landslide Italy 1998
154 KwaZulu-Natal South Africa 1995
144 Aberfan disaster United Kingdom (Wales) 1966
141+ 2010–2011 Southern Africa floods Africa 2011
138 2010 Colombia floods Colombia 2010
135 Ozengeli, avalanche Turkey 1993
128 Izumo, massive rain and mudslide Japan 1964
125+ 2010 Leh floods Jammu and Kashmir, Pakistan/India 2010
123 2009 Jeddah Torrential rain, floods Saudi Arabia 2009
120 1991 Antofagasta Flood, mud swept Chile 1991
119 2007 Central and East Java torrential monsson rain, landslide, flood Indonesia 2007
117 Masuda, massive rain and landslide Japan 1983
116 Verdal, landslide Norway 1893
114 Seoul, Inchon, heavy rain South Korea 1990
110 Southern Federal District, heavy rain, landslide Russia 2002
104 1981 Laingsburg flood South Africa 1981
98 Flood of the millennium Poland, Czech Republic 1997
94 The Mameyes disaster Puerto Rico (Ponce) 1985
90+ Columbus, Ohio flood on March 25, 1913 United States 1913
85+ January 2010 Rio de Janeiro floods and mudslides Rio de Janeiro, Brazil 2010
81 Holmfirth Flood—Bilberry Reservoir dam failure United Kingdom 1852
80 Failure of Laurel Run Dam and flash flooding United States 1977
78 Austin Dam failure United States 1911
73 Kagoshima, mudslide and debris flow Japan 1993
72 Gudbrandsdalen flood and landslides Norway 1789
70 2005 levee failures in Greater New Orleans United States 2005
51+ 2010 northeastern Brazil floods Alagoas and Pernambuco, Brazil 2010
50 Great Flood of 1993 Mississippi River, United States 1993
47 2011 Philippine flood Philippines 2011
47 McDonald Dam failure United states 1900
43+ Kyzyl-Agash Dam failure Kazakhstan 2010
42+ 2010 Madeira floods and mudslides Madeira, Portugal 2010
37+ 2010 Central European floods Poland, Austria, Czech Republic, Germany, Hungary, Slovakia, Serbia, Ukraine 2010
37 Yuba City, California Christmas Eve flood, levee failure United States 1955
37 2009 Istanbul Floods Turkey 2009
35 2010-2011 Queensland floods Australia 2010–2011
31 May 2010 Tennessee floods United States 2010
28 1959 Yellowstone earthquake, creating Quake Lake Montana, United States 1959
28 Great Flood of 1951 Kansas and Missouri, United States 1951
26 2009 Karachi floods, monsoon flooding Pakistan 2009
20 2010 Arkansas floods United States 2010
19 North Sea flood, storm surge Netherlands 1916
16 1974 Brisbane flood Australia 1974
13 2007 United Kingdom floods United Kingdom 2007

Large Igneous Provinces

Highly active periods of volcanism in what are called large igneous provinces have produced huge oceanic plateaus and flood basalts in the past. These can comprise hundreds of large eruptions, producing millions of cubic kilometers of lava in total. No large flood basalt type eruptions have occurred in human history, the most recent having occurred over 10 million years ago. They are often associated with breakup of supercontinents such as Pangea in the geologic record, and may have contributed to a number of mass extinctions. Most large igneous provinces have either not been studied thoroughly enough to establish the size of their component eruptions, or are not preserved well enough to make this possible. Many of the eruptions listed above thus come from just two large igneous provinces: the Paraná and Etendeka traps and the Columbia River Basalt Group. The latter is the most recent large igneous province, and also one of the smallest. A list of large igneous provinces follows to provide some indication of how many large eruptions may be missing from the lists given here.

Igneous province Age (Ma) Location Volume (millions of km3) Notes
Ontong Java–Manihiki–Hikurangi Plateau 121 Southwest Pacific Ocean 59–77[n 5] Largest igneous body on Earth, later split into three widely separated oceanic plateaus, with a fourth component perhaps now accreted onto South America. Possibly linked to the Louisville hotspot.
Kerguelen Plateau–Broken Ridge 112 South Indian Ocean, Kerguelen Islands 17[n 5] Linked to the Kerguelen hotspot. Volume includes Broken Ridge and the Southern and Central Kerguelen Plateau (produced 120–95 Ma), but not the Northern Kerguelen Plateau (produced after 40 Ma).
North Atlantic Igneous Province 55.5 North Atlantic Ocean 6.6[n 6] Linked to the Iceland hotspot.
Mid-Tertiary ignimbrite flare-up 32.5 Southwest United States: mainly in Colorado, Nevada, Utah, and New Mexico 5.5 Mostly andesite to rhyolite explosive (.5 km3) to effusive (5 km3) eruptions, 25–40 Ma. Includes many volcanic centers, including the San Juan volcanic field.
Caribbean large igneous province 88 Caribbean-Colombian oceanic plateau 4 Linked to the Galápagos hotspot.
Siberian Traps 249.4 Siberia, Russia 1–4 Possibly the largest outpouring of lava on land ever recorded, thought to have caused Permian-Triassic extinction, largest mass extinction event ever.
Karoo-Ferrar 183 Southern Africa, Antarctica 2.5 Formed as Gondwana broke up
Paraná and Etendeka traps 133 Brazil/Angola and Namibia 2.3 Linked to the Tristan hotspot
Central Atlantic Magmatic Province 200 Laurasia continents 2 Formed as Pangea broke up
Deccan Traps 65.5 Deccan Plateau, India 1.5 May have helped kill the dinosaurs.
Emeishan Traps 256.5 Southwestern China 1 Along with Siberian Traps, may have contributed to the Permian–Triassic extinction event.
Coppermine River Group 1267 Mackenzie Large Igneous Province/Canadian Shield 0.65 Consists of at least 150 individual flows.
Afro-Arabian flood volcanism 28.5 Ethiopia/Yemen/Afar, Arabian-Nubian Shield 0.35 Associated with silicic, explosive tuffs
Columbia River Basalt Group 16 Pacific Northwest, United States 0.18 Well exposed by Missoula Floods in the Channeled Scablands.

Largest Volcanic Effusive Eruptions

Effusive eruptions involve a relatively gentle, steady outpouring of lava rather than large explosions. They can continue for years or decades, producing extensive fluid mafic lava flows. For example, Kīlauea on Hawaiʻi has continued erupting from 1983 to the present, producing 2.7 km3 (1 cu mi) of lava covering more than 100 km2 (40 sq mi). The largest effusive eruption in history occurred in Iceland during the 1783–1784 eruption of Laki, which produced about 15 km3 (4 cu mi) of lava and killed one fifth of Iceland's population. The ensuing disruptions to the climate may also have killed millions elsewhere.

Eruption Age (Ma) Location Volume
(km3)
Notes
Mahabaleshwar–Rajahmundry Traps (Upper) 64.8 Deccan traps, India 9,300
Wapshilla Ridge flows ~15.5 Columbia River Basalt Group, United States 5,000–10,000 Member comprises 8–10 flows with a total volume of ~50,000 km3
McCoy Canyon flow 15.6 Columbia River Basalt Group, United States 4,300
Umtanum flows ~15.6 Columbia River Basalt Group, United States 2,750 Two flows with a total volume of 5,500 km3
Sand Hollow flow 15.3 Columbia River Basalt Group, United States 2,660
Pruitt Draw flow 16.5 Columbia River Basalt Group, United States 2,350
Museum flow 15.6 Columbia River Basalt Group, United States 2,350
Moonaree Dacite 1591 Gawler Range Volcanics, Australia 2,050 One of the oldest large eruptions preserved
Rosalia flow 14.5 Columbia River Basalt Group, United States 1,900
Joseph Creek flow 16.5 Columbia River Basalt Group, United States 1,850
Ginkgo Basalt 15.3 Columbia River Basalt Group, United States 1,600
California Creek—Airway Heights flow 15.6 Columbia River Basalt Group, United States 1,500
Stember Creek flow 15.6 Columbia River Basalt Group, United States 1,200

Largest Volcanic Explosive Eruptions

In explosive eruptions, the eruption of magma is driven by the rapid release of pressure, often involving the explosion of gas previously dissolved within the material. The most famous and destructive historical eruptions are mainly of this type. An eruptive phase can consist of a single eruption, or a sequence of several eruptions spread over several days, weeks or months. Explosive eruptions usually involve thick, highly viscous felsic magma, high in volatiles like water vapor and carbon dioxide. Pyroclastic materials are the primary product, typically in the form of tuff. Eruptions the size of that at Lake Toba 74 thousand years ago (2800 km3 or more) occur worldwide every 50,000 to 100,000 years.

Volcano—Eruption Age (Ma) Location Volume (km3) Notes
Guarapuava —Tamarana—Sarusas 132 Paraná and Etendeka traps 8,600
Santa Maria—Fria ~132 Paraná and Etendeka traps 7,800
Guarapuava —Ventura ~132 Paraná and Etendeka traps 7,600
Sam Ignimbrite and Green Tuff 29.5 Yemen 6,800 Volume includes 5550 km³ of distal tuffs. This estimate is uncertain to a factor of 2 or 3.
Goboboseb–Messum volcanic centre—Springbok quartz latite unit 132 Paraná and Etendeka traps, Brazil and Namibia 6,340
Caxias do Sul—Grootberg ~132 Paraná and Etendeka traps 5,650
La Garita Caldera—Fish Canyon tuff 27.8 San Juan volcanic field, Colorado 5,000 Commonly regarded as the largest tuff ever measured on Earth, or largest confidently-measured tuff on earth. It is part of at least 20 large caldera-forming eruptions in the San Juan volcanic field and surrounding area that formed around 26 to 35 Ma.
Jacui—Goboboseb II ~132 Paraná and Etendeka traps 4,350
Ourinhos—Khoraseb ~132 Paraná and Etendeka traps 3,900
Jabal Kura'a Ignimbrite 29.6 Yemen 3,800 Volume estimate is uncertain to a factor of 2 or 3.
Windows Butte tuff 31.4 William's Ridge, central Nevada 3,500 Part of the Mid-Tertiary ignimbrite flare-up
Anita Garibaldi—Beacon ~132 Paraná and Etendeka traps 3,450
Indian Peak Caldera Complex—Wah Wah Springs tuff 29.5 Eastern Nevada/Western Utah 3,200 Indian Peak Caldera Complex total volume over 10,000 cubic km, Wah Wah Springs tuff being the largest
Oxaya ignimbrites 19 Chile 3,000 Really a regional correlation of many ignimbrites originally thought to be distinct
Lund Tuff 29 Great Basin, USA 3,000 Similar in composition to the Fish Canyon Tuff
Lake Toba—Youngest Toba Tuff 0.073 Sunda Arc, Indonesia 2,800 Largest eruption on earth in at least the last 25 million years, responsible for the Toba catastrophe theory, a population bottleneck of the human species
Pacana Caldera—Atana ignimbrite 4 Chile 2,800 Forms a resurgent caldera.
Iftar Alkalb—Tephra 4 W 29.5 Afro-Arabian 2,700
Yellowstone caldera—Huckleberry Ridge Tuff 2.059 Yellowstone hotspot 2,450 Largest Yellowstone eruption on record
Whakamaru 0.254 Taupo Volcanic Zone, New Zealand 2,000 Largest in the Southern Hemisphere in the Late Quaternary
Palmas BRA-21—Wereldsend 29.5 Paraná and Etendeka traps 1,900
Kilgore tuff 4.3 Near Kilgore, Idaho 1,800 Last of the eruptions from the Heise volcanic field
Sana'a Ignimbrite—Tephra 2W63 29.5 Afro-Arabian 1,600
Millbrig eruptions—Bentonites 454 England, exposed in Northern Europe and Eastern US 1,509 One of the oldest large eruptions preserved
Blacktail tuff 6.5 Blacktail, Idaho 1,500 First of several eruptions from the Heise volcanic field
Emory Caldera—Kneeling Nun tuff 33 Southwestern New Mexico 1,310
Timber Mountain tuff 11.6 Southwestern Nevada 1,200 Also includes a 900 cubic km tuff as a second member in the tuff
Paintbrush tuff (Topopah Spring Member) 12.8 Southwestern Nevada 1,200 Related to a 1000 cubic km tuff (Tiva Canyon Member) as another member in the Paintbrush tuff
Bachelor—Carpenter Ridge tuff 28 San Juan volcanic field 1,200 Part of at least 20 large caldera-forming eruptions, including the world's largest, the Fish Canyon tuff in the San Juan volcanic field and surrounding area that formed around 26 to 35 Ma
Bursum—Apache Springs Tuff 28.5 Southern New Mexico 1,200 Related to a 1050 cubic km tuff, the Bloodgood Canyon tuff
Taupo Volcano—Oruanui eruption 0.027 Taupo volcanic zone, New Zealand 1,170 Most recent VEI 8 eruption
Huaylillas Ignimbrite 15 Bolivia 1,100 Predates half of the uplift of the central Andes
Bursum—Bloodgood Canyon tuff 28.5 Southern New Mexico 1,050 Related to a 1200 cubic km tuff, the Apache Springs tuff
Yellowstone Caldera—Lava Creek Tuff 0.639 Yellowstone hotspot 1,000 Last large eruption in the Yellowstone National Park area
Cerro Galán 2.2 Catamarca Province, Argentina 1,000 Elliptical caldera is ~35 km wide
Paintbrush tuff (Tiva Canyon Member) 12.7 Southwestern Nevada 1,000 Related to a 1200 cubic km tuff (Topopah Spring Member) as another member in the Paintbrush tuff
San Juan—Sapinero Mesa Tuff 28 San Juan volcanic field 1,000 Part of at least 20 large caldera-forming eruptions, including the world's largest, the Fish Canyon tuff in the San Juan volcanic field and surrounding area that formed around 26 to 35 Ma
Uncompahgre—Dillon & Sapinero Mesa Tuffs 28.1 San Juan volcanic field 1,000 Part of at least 20 large caldera-forming eruptions, including the world's largest, the Fish Canyon tuff in the San Juan volcanic field and surrounding area that formed around 26 to 35 Ma
Platoro—Chiquito Peak tuff 28.2 San Juan volcanic field 1,000 Part of at least 20 large caldera-forming eruptions, including the world's largest, the Fish Canyon tuff in the San Juan volcanic field and surrounding area that formed around 26 to 35 Ma
Mount Princeton—Wall Mountain tuff 35.3 Thirtynine Mile volcanic area, Colorado 1,000 Helped cause the exceptional preservation at Florissant Fossil Beds National Monument

Largest Earthquakes by Magnitude

Listed the earthquake with moment magnitude scale or Richter magnitude scale 8.5 and above. This list may be biased towards recent years due to the development and widespread deployment of seismometers. Records detailed enough to make magnitude estimates were not generally available before 1900.

Date Location Name Magnitude
May 22, 1960 Valdivia, Chile 1960 Valdivia earthquake 9.5
March 27, 1964 Prince William Sound, Alaska, USA 1964 Alaska earthquake 9.2
December 26, 2004 Indian Ocean, Sumatra, Indonesia 2004 Indian Ocean earthquake 9.1–9.3
November 4, 1952 Kamchatka, Russia (then USSR) 1952 Kamchatka earthquakes 9.0
March 11, 2011 Pacific Ocean, Tōhoku region, Japan 2011 Tōhoku earthquake 9.0
November 25, 1833 Sumatra, Indonesia 1833 Sumatra earthquake 8.8–9.2
January 31, 1906 Ecuador – Colombia 1906 Ecuador-Colombia earthquake 8.8
February 27, 2010 Maule, Chile 2010 Chile earthquake 8.8
January 26, 1700 Pacific Ocean, USA and Canada 1700 Cascadia earthquake 8.7–9.2
July 8, 1730 Valparaiso, Chile 1730 Valparaiso earthquake 8.7–9.0
November 1, 1755 Atlantic Ocean, Lisbon, Portugal 1755 Lisbon earthquake 8.7
February 4, 1965 Rat Islands, Alaska, USA 1965 Rat Islands earthquake 8.7
July 9, 0869 Pacific Ocean, Tōhoku region, Japan 869 Sanriku earthquake 8.6
August 15, 1950 Assam, India – Tibet, China 1950 Medog earthquake 8.6
March 9, 1957 Andreanof Islands, Alaska, USA 1957 Andreanof Islands earthquake 8.6
March 28, 2005 Sumatra, Indonesia 2005 Sumatra earthquake 8.6
August 13, 1868 Arica, Chile (then Peru) 1868 Arica earthquake 8.5–9.0
December 16, 1575 Valdivia, Chile (Kingdom of Chile) 1575 Valdivia earthquake 8.5
October 20, 1687 Lima, Peru (Viceroyalty of Peru) 1687 Peru earthquake 8.5
May 24, 1751 Concepción, Chile (Kingdom of Chile) 1751 Concepción earthquake 8.5
November 11, 1922 Atacama Region, Chile 1922 Vallenar earthquake 8.5
February 3, 1923 Kamchatka, Russia (USSR) 1923 Kamchatka earthquakes 8.5
February 1, 1938 Banda Sea, Indonesia (Dutch East Indies) 1938 Banda Sea earthquake 8.5
October 13, 1963 Kuril Islands, Russia (USSR) 1963 Kuril Islands earthquake 8.5
September 12, 2007 Sumatra, Indonesia 2007 Sumatra earthquakes 8.5