List of earthquakes in 1933

This is a list of earthquakes in 1933. Only magnitude 6.0 or greater earthquakes appear on the list. Lower magnitude events are included if they have caused death, injury or damage. Events which occurred in remote areas will be excluded from the list as they wouldn't have generated significant media interest. All dates are listed according to UTC time. The biggest event of the year was the great Japan earthquake which struck early in March. A little over a week later saw southern California's deadliest earthquake to date, and a major shock in southern Sumatra left over 780 dead. China had the deadliest event in August with over 9,300 deaths.

Earthquakes in 1933
List of earthquakes in 1933 is located in Earth
List of earthquakes in 1933
List of earthquakes in 1933
List of earthquakes in 1933
List of earthquakes in 1933
List of earthquakes in 1933
List of earthquakes in 1933
List of earthquakes in 1933
List of earthquakes in 1933
List of earthquakes in 1933
List of earthquakes in 1933
List of earthquakes in 1933
List of earthquakes in 1933
List of earthquakes in 1933
List of earthquakes in 1933
List of earthquakes in 1933
List of earthquakes in 1933
List of earthquakes in 1933
List of earthquakes in 1933
List of earthquakes in 1933
List of earthquakes in 1933
List of earthquakes in 1933
List of earthquakes in 1933
List of earthquakes in 1933
List of earthquakes in 1933
List of earthquakes in 1933
List of earthquakes in 1933
List of earthquakes in 1933
List of earthquakes in 1933
List of earthquakes in 1933
List of earthquakes in 1933
List of earthquakes in 1933
List of earthquakes in 1933
List of earthquakes in 1933
List of earthquakes in 1933
List of earthquakes in 1933
List of earthquakes in 1933
List of earthquakes in 1933
List of earthquakes in 1933
List of earthquakes in 1933
List of earthquakes in 1933
List of earthquakes in 1933
List of earthquakes in 1933
List of earthquakes in 1933
List of earthquakes in 1933
List of earthquakes in 1933
List of earthquakes in 1933
List of earthquakes in 1933
List of earthquakes in 1933
List of earthquakes in 1933
List of earthquakes in 1933
List of earthquakes in 1933
List of earthquakes in 1933
List of earthquakes in 1933
List of earthquakes in 1933
List of earthquakes in 1933
List of earthquakes in 1933
List of earthquakes in 1933
List of earthquakes in 1933
List of earthquakes in 1933
List of earthquakes in 1933
List of earthquakes in 1933
List of earthquakes in 1933
List of earthquakes in 1933
List of earthquakes in 1933
List of earthquakes in 1933
List of earthquakes in 1933
List of earthquakes in 1933
List of earthquakes in 1933
List of earthquakes in 1933
List of earthquakes in 1933
List of earthquakes in 1933
List of earthquakes in 1933
List of earthquakes in 1933
List of earthquakes in 1933
List of earthquakes in 1933
List of earthquakes in 1933
List of earthquakes in 1933
List of earthquakes in 1933
List of earthquakes in 1933
List of earthquakes in 1933
List of earthquakes in 1933
List of earthquakes in 1933
List of earthquakes in 1933
List of earthquakes in 1933
List of earthquakes in 1933
List of earthquakes in 1933
List of earthquakes in 1933
List of earthquakes in 1933
List of earthquakes in 1933
List of earthquakes in 1933
List of earthquakes in 1933
List of earthquakes in 1933
List of earthquakes in 1933
List of earthquakes in 1933
List of earthquakes in 1933
List of earthquakes in 1933
List of earthquakes in 1933
List of earthquakes in 1933
List of earthquakes in 1933
List of earthquakes in 1933
List of earthquakes in 1933
List of earthquakes in 1933
List of earthquakes in 1933
List of earthquakes in 1933
List of earthquakes in 1933
List of earthquakes in 1933
List of earthquakes in 1933
List of earthquakes in 1933
Approximate epicenters of the earthquakes in 1933
Strongest magnitude Japan, off the east coast of Honshu, (Magnitude 8.4) March 2
Deadliest China, Sichuan Province (Magnitude 7.3) August 25 9,300 deaths
Total fatalities13,368
Number by magnitude
9.0+0
← 1932
1934 →

Overall

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By death toll

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Rank Death toll Magnitude Location MMI Depth (km) Date
1 9,300 7.3   China, Sichuan Province X (Extreme) 15.0 August 25
2 3,022 8.4   Japan, off the east coast of Honshu ( ) 15.0 March 2
3 788 7.6   Dutch East Indies, southern Sumatra IX (Violent) 20.0 June 25
4 200 5.0   China, Sichuan Province VI (Strong) 0.0 September 20
5 181+ 6.4   Greece, off the coast of Kos X (Extreme) 15.0 April 23
6 120 6.4   United States, off the coast of California IX (Violent) 6.0 March 11
7 10 5.6   Italy, Abruzzo IX (Violent) 15.0 September 26
  • Note: At least 10 casualties

By magnitude

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Rank Magnitude Death toll Location MMI Depth (km) Date
1 8.4 3,022   Japan, off the east coast of Honshu ( ) 15.0 March 2
2 7.6 788   Dutch East Indies, southern Sumatra IX (Violent) 20.0 June 25
3 7.5 0   United Kingdom, South Sandwich Islands ( ) 35.0 August 28
4 7.4 0   Canada, Baffin Bay ( ) 15.0 November 20
5 7.3 9,300   China, Sichuan Province X (Extreme) 15.0 August 25
= 6 7.2 0   Chile, Tarapaca Region ( ) 35.0 February 23
= 6 7.2 0   Japan, off the east coast of Honshu ( ) 30.0 June 18
= 7 7.1 0 Southwest Indian Ridge ( ) 10.0 January 21
= 7 7.1 0   Fiji ( ) 600.0 September 6
= 8 7.0 0   New Hebrides ( ) 135.0 January 1
= 8 7.0 0   Argentina, Jujuy Province ( ) 205.0 October 25
  • Note: At least 7.0 magnitude

Notable events

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January

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January
Strongest magnitude7.1 Mw Southwest Indian Ridge
Total fatalities0
Number by magnitude
8.0–8.90
7.0–7.92
6.0–6.98
Date Country and location Mw Depth (km) MMI Notes Casualties
Dead Injured
1[1]   New Hebrides 7.0 135.0
4[2]   United States, Kenai Peninsula, Alaska 6.4 20.0
7[3]   Japan, off the east coast of Honshu 6.6 15.0
8[4]   Japan, off the east coast of Honshu 6.0 35.0 Aftershock.
9[5]   Afghanistan, Badakhshan Province 6.5 230.0
15[6]   New Guinea, off the east coast 6.2 140.0
18[7]   Russian SFSR, Sea of Okhotsk 6.5 570.0
21[8] Southwest Indian Ridge 7.1 10.0
24[9]   Mexico, Michoacan 6.2 90.0
27[10]   Samoa, south of 6.5 15.0

February

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February
Strongest magnitude7.2 Mw   Chile
Total fatalities0
Number by magnitude
8.0–8.90
7.0–7.91
6.0–6.92
Date Country and location Mw Depth (km) MMI Notes Casualties
Dead Injured
13[11]   China, Xinjiang Province 6.4 10.0
19[12]   British Solomon Islands 6.5 60.0
23[13]   Chile, Tarapaca Region 7.2 35.0

March

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March
Strongest magnitude8.4 Mw   Japan
Deadliest8.4 Mw   Japan
3,022 deaths
Total fatalities3,142
Number by magnitude
8.0–8.91
7.0–7.90
6.0–6.912
Date Country and location Mw Depth (km) MMI Notes Casualties
Dead Injured
2[14][15][16]   Japan, off the east coast of Honshu 8.4 15.0 The 1933 Sanriku earthquake caused the destruction of many homes. A tsunami was triggered and caused 3,022 deaths. 6,000 homes were destroyed. 3,022
2[17]   Japan, off the east coast of Honshu 6.5 35.0 Aftershock.
3[18]   Philippines, Luzon 6.5 120.0
3[19]   Japan, off the east coast of Honshu 6.4 15.0 Aftershock.
3[20]   Japan, off the east coast of Honshu 6.3 15.0 Aftershock.
3[21]   Japan, off the east coast of Honshu 6.0 35.0 Aftershock.
8[22]   Japan, off the east coast of Honshu 6.0 35.0 Aftershock.
11[23][24]   United States, Newport Beach, California 6.4 6.0 IX The 1933 Long Beach earthquake caused 120 deaths and extensive property damage. Costs were around $40 million (1933 rate). Many schools were damaged which led to changes in building codes. 120
11[25]   Japan, Bonin Islands 6.8 480.0
17[26]   Russian SFSR, Kamchatka Krai 6.6 35.0
17[27]   Philippines, southeast of Mindanao 6.7 35.0
18[28]   Japan, south of Honshu 6.5 170.0
23[29]   Mongolia, Bulgan Province 6.0 35.0

April

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April
Strongest magnitude6.8 Mw   United States
Deadliest6.4 Mw  Greece
181+ deaths
Total fatalities181+
Number by magnitude
8.0–8.90
7.0–7.90
6.0–6.98
Date Country and location Mw Depth (km) MMI Notes Casualties
Dead Injured
1[30]   Japan, off the east coast of Honshu 6.0 35.0 Aftershock.
9[31]   Japan, off the east coast of Honshu 6.7 15.0 Aftershock.
9[32]   Mexico, off the coast of Jalisco 6.4 15.0
16[33]   Dutch East Indies, Papua (province) 6.2 35.0
19[34]   Taiwan, Hualien County 6.7 35.0
23[35][36]   Greece, Dodecanese Islands 6.3 15.0 X The 1933 Kos earthquake killed at least 181 people, destroyed many homes on Kos and damaged buildings on nearby islands. Minor damage to buildings in Turkey.[37] 181+
23[38]   Japan, off the east coast of Honshu 6.4 15.0 Aftershock.
27[39]   United States, southern Alaska 6.8 15.0
May
Strongest magnitude6.7 Mw   Mexico
Total fatalities0
Number by magnitude
8.0–8.90
7.0–7.90
6.0–6.95
Date Country and location Mw Depth (km) MMI Notes Casualties
Dead Injured
1[40]   United States, Andreanof Islands, Alaska 6.5 0.0 Depth unknown.
8[41]   Mexico, Guerrero 6.7 30.0
11[42]   Greece, Central Macedonia 6.3 10.0
21[43]   Dutch East Indies, eastern Seram 6.2 120.0
21[44]   Dutch East Indies, Banda Sea 6.2 180.0

June

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June
Strongest magnitude7.6 Mw   Dutch East Indies
Deadliest7.6 Mw   Dutch East Indies
788 deaths
Total fatalities788
Number by magnitude
8.0–8.90
7.0–7.92
6.0–6.912
Date Country and location Mw Depth (km) MMI Notes Casualties
Dead Injured
2[45]   Japan, southeast of Kyushu 6.2 35.0
3[46]   Japan, Ryukyu Islands 6.2 35.0
4[47]   New Guinea, off the east coast 6.0 120.0
6[48]   Philippines, southwest of Luzon 6.2 35.0
7[49]   China, Yunnan Province 6.2 35.0
10[50]   Iceland, southwest of 6.0 35.0
11[51]   Fiji 6.5 80.0
13[52]   Japan, off the east coast of Honshu 6.2 35.0 Foreshock.
13[53]   United States, southern Alaska 6.3 0.0 Depth unknown.
18[54]   Japan, off the east coast of Honshu 7.2 30.0
19[55]   United States, southern Alaska 6.0 0.0 Aftershock. Depth unknown.
21[56]   Dutch East Indies, off the west coast of northern Sumatra 6.5 80.0
24[57][58]   Dutch East Indies, southern Sumatra 7.6 20.0 IX The 1933 Sumatra earthquake killed at least 788 people and caused extensive damage.[59] 788 650
25[60]   United States, western Nevada 6.1 0.0 Depth unknown.

July

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July
Strongest magnitude6.9 Mw   United States
Total fatalities0
Number by magnitude
8.0–8.90
7.0–7.90
6.0–6.912
Date Country and location Mw Depth (km) MMI Notes Casualties
Dead Injured
9[61]   Russian SFSR, east of the Kuril Islands 6.4 15.0
9[62]   Russian SFSR, east of the Kuril Islands 6.6 15.0
10[63]   Mexico, off the coast of Michoacan 6.4 15.0
10[64]   Dutch East Indies, Aru Islands 6.2 35.0
13[65]   Japan, off the west coast of Hokkaido 6.0 100.0
13[66]   Dutch East Indies, south of Java 6.2 70.0
19[67]   Turkey, Denizli Province 6.0 100.0
22[68]   United States, Fox Islands (Alaska) 6.9 30.0
23[69]   Peru, off the southern coast of 6.0 80.0
24[70]   Samoa 6.5 25.0
30[71]   New Hebrides, Espiritu Santo 6.5 160.0
31[72]   Peru, off the southern coast of 6.0 80.0

August

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August
Strongest magnitude7.5 Mw   United Kingdom
Deadliest7.3 Mw   China
9,300 deaths
Total fatalities9,300
Number by magnitude
8.0–8.90
7.0–7.92
6.0–6.96
Date Country and location Mw Depth (km) MMI Notes Casualties
Dead Injured
6[73]   Peru, Junin Region 6.5 100.0
9[74]   Bolivia, La Paz Department (Bolivia) 6.2 170.0
11[75]   China,   British Burma, border region 6.4 10.0
20[76]   Philippines, southeast of Catanduanes 6.3 20.0
25[77][78]   China, Sichuan Province 7.3 15.0 X The 1933 Diexi earthquake caused major destruction. 9,300 people were killed and scores of homes were destroyed. 9,300
25[79]   Dutch East Indies, Sulawesi 6.5 720.0
28[80]   United Kingdom, South Sandwich Islands 7.5 35.0
29[81]   Brazil, Acre (state) 6.5 650.0

September

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September
Strongest magnitude7.1 Mw   Fiji
Deadliest5.0 Mw   China
200 deaths
Total fatalities210
Number by magnitude
8.0–8.90
7.0–7.91
6.0–6.911
5.0–5.91
Date Country and location Mw Depth (km) MMI Notes Casualties
Dead Injured
2[82]   Japan, Izu Islands 6.8 425.0
6[83]   Fiji 7.1 600.0
7[84]   Philippines, Mindanao 6.2 150.0
9[85]   China, Heilongjiang Province 6.2 590.0
20[86]   China, Sichuan Province 5.0 0.0 VI 200 people were killed in the moderate event. Landslides destroyed 30 homes. Depth unknown. 200
20[87]   Philippines, Mindoro 6.5 100.0
21[88]   Japan, off the west coast of Honshu 6.2 50.0
21[89]   Japan, off the east coast of Honshu 6.2 35.0
24[90]   United States, Andreanof Islands, Alaska 6.4 55.0
25[91]   Philippines, east of Mindanao 6.0 35.0
25[92]   China, Xinjiang Province 6.7 10.0
26[93][94]   Italy, Abruzzo 5.6 15.0 IX 10 people died and some damage was reported. 10
27[95]   New Guinea, north of New Britain 6.0 35.0
30[96]   Dutch East Indies, Papua (province) 6.2 35.0

October

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October
Strongest magnitude7.0 Mw   Argentina
Total fatalities0
Number by magnitude
8.0–8.90
7.0–7.91
6.0–6.910
Date Country and location Mw Depth (km) MMI Notes Casualties
Dead Injured
1[97]   Peru, Loreto Region 6.2 120.0
2[98]   Ecuador, off the coast of 6.7 15.0
3[99]   Ecuador, Santa Elena Province 6.2 35.0 Aftershock.
3[100]   Ecuador, Santa Elena Province 6.0 35.0 Aftershock.
3[101]   Japan, Niigata Prefecture, Honshu 6.0 35.0
5[102]   Iran, Semnan Province 6.0 35.0
12[103]   Chile, Antofagasta Region 6.2 100.0
17[104]   Dutch East Indies, east of Seram 6.5 130.0
25[105]   Argentina, Jujuy Province 7.0 205.0
27[106]   Dutch East Indies, Flores Sea 6.0 420.0
30[107]   New Hebrides, Malekula 6.0 35.0

November

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November
Strongest magnitude7.4 Mw   Canada
Deadliest6.2 Mw   Iran
4 deaths
Total fatalities4
Number by magnitude
8.0–8.90
7.0–7.91
6.0–6.97
Date Country and location Mw Depth (km) MMI Notes Casualties
Dead Injured
4[108]   Venezuela, Tachira 6.0 35.0
14[109]   Argentina, San Juan Province, Argentina 6.5 110.0
20[110]   Canada, Baffin Bay 7.4 10.0 1933 Baffin Bay earthquake.
21[111]   Costa Rica, off the south coast 6.0 35.0
22[112]   New Guinea, south of New Britain 6.7 35.0
23[113]   Costa Rica, off the south coast 6.0 35.0
28[114][115]   Iran, Yazd Province 6.2 10.0 4 people were killed and major damage was caused. 4
29[116]   Costa Rica, off the south coast 6.0 35.0

December

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December
Strongest magnitude6.8 Mw   Russian SFSR
Total fatalities0
Number by magnitude
8.0–8.90
7.0–7.90
6.0–6.96
Date Country and location Mw Depth (km) MMI Notes Casualties
Dead Injured
1[117]   France, Loyalty Islands, New Caledonia 6.5 140.0
4[118]   Russian SFSR, Sea of Okhotsk 6.8 305.0
12[119][120]   New Guinea, eastern New Ireland (island) 6.4 15.0 Minor damage was caused.
13[121]   Mexico, off the coast of Colima 6.6 20.0
14[122]   Mexico, Michoacan 6.3 30.0
21[123]   Argentina, San Juan Province, Argentina 6.2 120.0

References

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  1. ^ "On-Line Bulletin". International Seismological Centre. January 1, 1933. Retrieved April 16, 2016.
  2. ^ "M 6.4 – Kenai Peninsula, Alaska". United States Geological Survey. January 4, 1933. Retrieved April 16, 2016.
  3. ^ "M 6.6 – off the east coast of Honshu, Japan". United States Geological Survey. January 7, 1933. Retrieved April 16, 2016.
  4. ^ "On-Line Bulletin". International Seismological Centre. January 8, 1933. Retrieved April 16, 2016.
  5. ^ "On-Line Bulletin". International Seismological Centre. January 9, 1933. Retrieved April 16, 2016.
  6. ^ "On-Line Bulletin". International Seismological Centre. January 15, 1933. Retrieved April 16, 2016.
  7. ^ "On-Line Bulletin". International Seismological Centre. January 18, 1933. Retrieved April 16, 2016.
  8. ^ "M 7.1 – Southwest Indian Ridge". United States Geological Survey. January 21, 1933. Retrieved April 16, 2016.
  9. ^ "On-Line Bulletin". International Seismological Centre. January 24, 1933. Retrieved April 16, 2016.
  10. ^ "M 6.5 – Samoa Islands region". United States Geological Survey. January 27, 1933. Retrieved April 16, 2016.
  11. ^ "M 6.4 – Mongolia-China border region". United States Geological Survey. February 13, 1933. Retrieved April 16, 2016.
  12. ^ "On-Line Bulletin". International Seismological Centre. February 19, 1933. Retrieved April 16, 2016.
  13. ^ "M 7.2 – Tarapaca, Chile". United States Geological Survey. February 23, 1933. Retrieved April 16, 2016.
  14. ^ "M 8.4 – off the east coast of Honshu, Japan". United States Geological Survey. March 2, 1933. Retrieved April 16, 2016.
  15. ^ "Significant Earthquake: JAPAN: SANRIKU". National Geophysical Data Center. March 2, 1933. Retrieved April 16, 2016.
  16. ^ "Tsunami Event: SANRIKU". National Geophysical Data Center. March 2, 1933. Retrieved April 16, 2016.
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  18. ^ "On-Line Bulletin". International Seismological Centre. March 3, 1933. Retrieved April 16, 2016.
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  20. ^ "M 6.3 – off the east coast of Honshu, Japan". United States Geological Survey. March 3, 1933. Retrieved April 16, 2016.
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  27. ^ "M 6.7 – Philippine Islands region". United States Geological Survey. March 17, 1933. Retrieved April 16, 2016.
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  31. ^ "M 6.7 – off the east coast of Honshu, Japan". United States Geological Survey. April 9, 1933. Retrieved April 16, 2016.
  32. ^ "M 6.4 – offshore Jalisco, Mexico". United States Geological Survey. April 9, 1933. Retrieved April 16, 2016.
  33. ^ "On-Line Bulletin". International Seismological Centre. April 16, 1933. Retrieved April 16, 2016.
  34. ^ "M 6.7 – Taiwan". United States Geological Survey. April 19, 1933. Retrieved April 16, 2016.
  35. ^ "M 6.3 – Dodecanese Islands, Greece". United States Geological Survey. April 23, 1933. Retrieved April 16, 2016.
  36. ^ "Significant Earthquake: GREECE: DODECANESE ISLANDS". National Geophysical Data Center. April 23, 1933. Retrieved April 16, 2016.
  37. ^ Triantafyllou, Ioanna; Papadopoulos, Gerassimos A.; Lekkas, Efthimios (2020). "Impact on built and natural environment of the strong earthquakes of April 23, 1933, and July 20, 2017, in the southeast Aegean Sea, eastern Mediterranean". Natural Hazards. 100 (2): 671–695. Bibcode:2020NatHa.100..671T. doi:10.1007/s11069-019-03832-9. S2CID 209441124.
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  39. ^ "M 6.8 – Southern Alaska". United States Geological Survey. April 27, 1933. Retrieved April 16, 2016.
  40. ^ "M 6.5 – Andreanof Islands, Aleutian Islands, Alaska". United States Geological Survey. May 1, 1933. Retrieved May 18, 2019.
  41. ^ "M 6.7 – Guerrero, Mexico". United States Geological Survey. May 8, 1933. Retrieved April 16, 2016.
  42. ^ "M 6.3 – Greece". United States Geological Survey. May 11, 1933. Retrieved April 16, 2016.
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  46. ^ "On-Line Bulletin". International Seismological Centre. June 3, 1933. Retrieved April 17, 2016.
  47. ^ "On-Line Bulletin". International Seismological Centre. June 4, 1933. Retrieved April 17, 2016.
  48. ^ "On-Line Bulletin". International Seismological Centre. June 6, 1933. Retrieved April 17, 2016.
  49. ^ "On-Line Bulletin". International Seismological Centre. June 7, 1933. Retrieved April 17, 2016.
  50. ^ "On-Line Bulletin". International Seismological Centre. June 10, 1933. Retrieved April 17, 2016.
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  52. ^ "On-Line Bulletin". International Seismological Centre. June 13, 1933. Retrieved April 17, 2016.
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  54. ^ "M 7.2 – near the east coast of Honshu, Japan". United States Geological Survey. June 18, 1933. Retrieved April 17, 2016.
  55. ^ "M 6.0 – Southern Alaska". United States Geological Survey. June 19, 1933. Retrieved May 21, 2019.
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  57. ^ "M 7.6 – southern Sumatra, Indonesia". United States Geological Survey. June 24, 1933. Retrieved April 17, 2016.
  58. ^ "Significant Earthquake: INDONESIA: S SUMATERA". National Geophysical Data Center. June 24, 1933. Retrieved April 17, 2016.
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  60. ^ "M 6.1 – Nevada". United States Geological Survey. June 25, 1933. Retrieved May 21, 2019.
  61. ^ "M 6.4 – east of the Kuril Islands". United States Geological Survey. July 9, 1933. Retrieved April 17, 2016.
  62. ^ "M 6.6 – east of the Kuril Islands". United States Geological Survey. July 9, 1933. Retrieved April 17, 2016.
  63. ^ "M 6.4 – offshore Michoacan, Mexico". United States Geological Survey. July 10, 1933. Retrieved April 17, 2016.
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  65. ^ "On-Line Bulletin". International Seismological Centre. July 13, 1933. Retrieved April 17, 2016.
  66. ^ "On-Line Bulletin". International Seismological Centre. July 13, 1933. Retrieved April 17, 2016.
  67. ^ "On-Line Bulletin". International Seismological Centre. July 19, 1933. Retrieved April 17, 2016.
  68. ^ "M 6.9 – Fox Islands, Aleutian Islands, Alaska". United States Geological Survey. July 22, 1933. Retrieved April 17, 2016.
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  70. ^ "M 6.5 – Samoa Islands region". United States Geological Survey. July 24, 1933. Retrieved April 17, 2016.
  71. ^ "On-Line Bulletin". International Seismological Centre. July 30, 1933. Retrieved April 17, 2016.
  72. ^ "On-Line Bulletin". International Seismological Centre. July 31, 1933. Retrieved April 17, 2016.
  73. ^ "On-Line Bulletin". International Seismological Centre. August 6, 1933. Retrieved April 17, 2016.
  74. ^ "On-Line Bulletin". International Seismological Centre. August 9, 1933. Retrieved April 17, 2016.
  75. ^ "M 6.4 – Myanmar-China border region". United States Geological Survey. August 11, 1933. Retrieved April 17, 2016.
  76. ^ "M 6.3 – Catanduanes, Philippines". United States Geological Survey. August 20, 1933. Retrieved April 17, 2016.
  77. ^ "M 7.3 – western Sichuan, China". United States Geological Survey. August 25, 1933. Retrieved April 17, 2016.
  78. ^ "Significant Earthquake: CHINA: SICHUAN PROVINCE". National Geophysical Data Center. August 25, 1933. Retrieved April 17, 2016.
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  89. ^ "On-Line Bulletin". International Seismological Centre. September 21, 1933. Retrieved April 17, 2016.
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  93. ^ "M 5.6 – 4 km W of Palena, Italy". United States Geological Survey. September 26, 1933. Retrieved August 7, 2022.
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  97. ^ "On-Line Bulletin". International Seismological Centre. October 1, 1933. Retrieved April 17, 2016.
  98. ^ "M 6.7 – near the coast of Ecuador". United States Geological Survey. October 2, 1933. Retrieved April 17, 2016.
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  100. ^ "On-Line Bulletin". International Seismological Centre. October 3, 1933. Retrieved April 17, 2016.
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  102. ^ "On-Line Bulletin". International Seismological Centre. October 5, 1933. Retrieved April 17, 2016.
  103. ^ "On-Line Bulletin". International Seismological Centre. October 12, 1933. Retrieved April 17, 2016.
  104. ^ "On-Line Bulletin". International Seismological Centre. October 17, 1933. Retrieved April 17, 2016.
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  108. ^ "On-Line Bulletin". International Seismological Centre. November 4, 1933. Retrieved April 17, 2016.
  109. ^ "On-Line Bulletin". International Seismological Centre. November 14, 1933. Retrieved April 17, 2016.
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  112. ^ "M 6.7 – New Britain region, Papua New Guinea". United States Geological Survey. November 22, 1933. Retrieved April 17, 2016.
  113. ^ "On-Line Bulletin". International Seismological Centre. November 23, 1933. Retrieved April 17, 2016.
  114. ^ "M 6.2 – central Iran". United States Geological Survey. November 28, 1933. Retrieved April 17, 2016.
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  117. ^ "On-Line Bulletin". International Seismological Centre. December 1, 1933. Retrieved April 17, 2016.
  118. ^ "On-Line Bulletin". International Seismological Centre. December 4, 1933. Retrieved April 17, 2016.
  119. ^ "M 6.4 – New Britain region, Papua New Guinea". United States Geological Survey. December 12, 1933. Retrieved April 17, 2016.
  120. ^ "Significant Earthquake: PAPUA NEW GUINEA". National Geophysical Data Center. December 12, 1933. Retrieved April 17, 2016.
  121. ^ "M 6.6 – offshore Colima, Mexico". United States Geological Survey. December 13, 1933. Retrieved April 17, 2016.
  122. ^ "M 6.3 – Michoacan, Mexico". United States Geological Survey. December 14, 1933. Retrieved April 17, 2016.
  123. ^ "On-Line Bulletin". International Seismological Centre. December 21, 1933. Retrieved April 17, 2016.