List of earthquakes in 1973 explained

Year:1973
Location Map:Earth
Largest: Japan off the east coast of Hokkaido (Magnitude 7.7) June 17
Deadliest: China, Sichuan Province (Magnitude 7.4) February 6, 2,199 deaths
Fatalities:2,899
9.0+:0
8.0–8.9:0
7.0–7.9:9
6.0–6.9:57
5.0–5.9:1333
4.0–4.9:2557

This is a list of earthquakes in 1973. 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. Maximum intensities are indicated on the Mercalli intensity scale and are sourced from United States Geological Survey (USGS) ShakeMap data. Both the number of large events and the death toll were substantially lower in 1973. There was 9 magnitude 7.0+ events. The largest of these was in Japan measuring 7.7. Russia and New Hebrides were active during the year with each country having 2 magnitude 7.0+ events. Nearly 3,000 deaths were reported with China being worst affected. Mexico also had a significant death toll.

Overall

By death toll

RankDeath tollMagnitudeLocationMMIDepth (km)Date
1 China, Sichuan Province
27.1 Mexico, Oaxaca
3 Mexico, Michoacan
4 Costa Rica, Alajuela Province
5 Philippines, Luzon

By magnitude

RankMagnitudeDeath tollLocationMMIDepth (km)Date
1 Japan, off the east coast of Hokkaido
2 Mexico, Michoacán
2, Vanuatu
3 China, Sichuan Province
4, Kuril Islands, Russia
4, Vanuatu
5, Kuril Islands, Russia
6 Philippines, Luzon
6 United Kingdom, east of the South Sandwich Islands

Notable events

January

Month:January
8.0–8.9:0
7.0–7.9:1
6.0–6.9:4
5.0–5.9:101
4.0–4.9:193
Largest:7.5 Mw Mexico
Deadliest:7.5 Mw Mexico
56 deaths
Fatalities:56
Date! rowspan="2" style="width: 310px"
Country and locationMwDepth (km)MMINotesCasualties
DeadInjured
[1] [2] 6.2 150.0
[3] [4] 6.1 36.0
[5] [6] 6.8 43.0
[7] 6.1 33.0
[8] [9] [10] 7.5 43.0 56 people were killed and 390 were injured in the 1973 Colima earthquake. Some homes were destroyed. 56 390

February

Month:February
8.0–8.9:0
7.0–7.9:2
6.0–6.9:2
5.0–5.9:96
4.0–4.9:204
Largest:7.4 Mw China
Deadliest:7.4 Mw China
2,199 deaths
Fatalities:2,199
Date! rowspan="2" style="width: 310px"
Country and locationMwDepth (km)MMINotesCasualties
DeadInjured
[11] 6.1 229.0
[12] [13] [14] [15] 7.4 33.0 Deadliest event of 1973. 2,199 people were killed and 2,743 were injured in the 1973 Luhuo earthquake. 168 homes were destroyed. 2,199 2,743
[16] [17] [18] 5.1 38.0 Some damage was caused.
[19] [20] [21] 5.3 10.0 The 1973 Point Mugu earthquake caused $1 million (1973 rate) in property damage.
[22] [23] 5.2 27.0 Major damage was caused.
[24] 6.0 59.0
[25] [26] [27] , Kuril Islands, Russia 7.2 27.0 Some damage was caused.

March

Month:March
8.0–8.9:0
7.0–7.9:1
6.0–6.9:4
5.0–5.9:105
4.0–4.9:208
Largest:7.0 Mw Philippines
Deadliest:7.0 Mw Philippines
15 deaths
Fatalities:15
Date! rowspan="2" style="width: 310px"
Country and locationMwDepth (km)MMINotesCasualties
DeadInjured
[28] , eastern Kamchatka, Russia 6.1 32.0
[29] [30] [31] 5.5 13.0 Property damage was caused with costs reaching $500,000 (1973 rate).
[32] [33] , Kuril Islands, Russia 6.1 54.0 Aftershock of February 28 event.
[34] 6.0 194.0
[35] [36] [37] 7.0 33.0 The 1973 Ragay Gulf earthquake killed 15 people and 64 others were injured. Damage costs were around $450,000 (1973 rate). 15 64
[38] 6.5 33.0

April

Month:April
8.0–8.9:0
7.0–7.9:0
6.0–6.9:8
5.0–5.9:88
4.0–4.9:287
Largest:6.6 Mw India
Deadliest:6.5 Mw Costa Rica
26 deaths
Fatalities:27
Date! rowspan="2" style="width: 310px"
Country and locationMwDepth (km)MMINotesCasualties
DeadInjured
[39] [40] [41] 5.9 31.0 Some damage was caused.
[42] [43] 6.2 158.0
[44] 6.6 33.0
[45] [46] 6.4 35.0
[47] , Kuril Islands, Russia 6.1 52.0 Aftershock of February 28 event.
[48] [49] [50] 6.5 33.0 26 people were killed and 100 were injured. Damage costs were $200,000 (1973 rate). 26 100
[51] [52] 6.4 33.0
[53] [54] [55] Colombia, off the west coast of 6.5 50.0 1 person died and some damage was reported. 1
[56] [57] [58] 6.2 36.9 11 people were injured and some property damage was reported. Costs were $5.75 million (1973 rate). 11

May

Month:May
8.0–8.9:0
7.0–7.9:0
6.0–6.9:1
5.0–5.9:83
4.0–4.9:190
Largest:6.0 Mw United States
Fatalities:0
Date! rowspan="2" style="width: 310px"
Country and locationMwDepth (km)MMINotesCasualties
DeadInjured
[59] [60] United States, Unimak Island, Alaska 6.0 30.0 Although in a remote location this was the only magnitude 6.0+ event of the month.

June

Month:June
8.0–8.9:0
7.0–7.9:2
6.0–6.9:4
5.0–5.9:155
4.0–4.9:269
Largest:7.7 Mw Japan
Fatalities:0
Date! rowspan="2" style="width: 310px"
Country and locationMwDepth (km)MMINotesCasualties
DeadInjured
[61] [62] 6.1 24.0
[63] [64] 6.3 70.0
[65] [66] [67] 7.7 48.0 Largest event of 1973. 27 people were injured in the 1973 Nemuro earthquake. 2 homes were destroyed. Overall damage costs were $5 million (1973 rate). 27
[68] 6.0 50.0 Aftershock.
[69] [70] [71] , Kuril Islands, Russia 7.1 50.0 1 person was injured and some damage was reported. Aftershock of June 17 event. 1
[72] [73] , Kuril Islands, Russia 6.6 50.0 Aftershock.

July

Month:July
8.0–8.9:0
7.0–7.9:0
6.0–6.9:7
5.0–5.9:153
4.0–4.9:234
Largest:6.9 Mw China
Fatalities:0
Date! rowspan="2" style="width: 310px"
Country and locationMwDepth (km)MMINotesCasualties
DeadInjured
[74] [75] United States, off the southeast coast of Alaska 6.7 33.0
[76] [77] 6.0 44.0 Foreshock.
[78] [79] 6.5 33.0
[80] [81] 6.0 38.0 Aftershock.
[82] [83] 6.9 33.0
[84] [85] 6.3 33.0
[86] [87] 6.0 30.0

August

Month:August
8.0–8.9:0
7.0–7.9:0
6.0–6.9:10
5.0–5.9:104
4.0–4.9:189
Largest:6.8 Mw Mexico
Deadliest:6.8 Mw Mexico
600 deaths
Fatalities:600
Date! rowspan="2" style="width: 310px"
Country and locationMwDepth (km)MMINotesCasualties
DeadInjured
[88] [89] 6.1 200.0
[90] 6.1 33.0
[91] [92] 6.1 25.0 Foreshock.
[93] [94] 6.3 14.0
[95] [96] , southern Kuril Islands, Russia 6.0 55.0
[97] [98] 6.1 33.0
[99] [100] 6.0 112.0
[101] [102] 6.4 33.0
[103] [104] 6.1 14.0
[105] [106] [107] 6.8 84.0 The 1973 Veracruz earthquake caused 600 deaths as well as major damage. 600

September

Month:September
8.0–8.9:0
7.0–7.9:0
6.0–6.9:3
5.0–5.9:96
4.0–4.9:173
Fatalities:0
Date! rowspan="2" style="width: 310px"
Country and locationMwDepth (km)MMINotesCasualties
DeadInjured
[108] [109] , off the coast of Primorsky Krai, Russia 6.0 532.0
[110] [111] 6.0 560.0
[112] [113] , off the east coast of 6.5 575.0

October

Month:October
8.0–8.9:0
7.0–7.9:1
6.0–6.9:5
5.0–5.9:99
4.0–4.9:232
Largest:7.0 Mw United Kingdom
Fatalities:0
Date! rowspan="2" style="width: 310px"
Country and locationMwDepth (km)MMINotesCasualties
DeadInjured
[114] [115] 6.5 14.0 Foreshock.
[116] [117] [118] 6.7 33.0 Some damage was caused.
[119] 7.0 33.0
[120] [121] 6.4 33.0
[122] [123] 6.0 45.0
[124] 6.1 529.0

November

Month:November
8.0–8.9:0
7.0–7.9:0
6.0–6.9:6
5.0–5.9:128
4.0–4.9:188
Largest:6.4 Mw United States
Deadliest:2 events caused 1 death each in Iran and Portugal
Fatalities:2
Date! rowspan="2" style="width: 310px"
Country and locationMwDepth (km)MMINotesCasualties
DeadInjured
[125] [126] [127] Greece, off the west coast 5.8 8.0 Some damage was reported.
[128] [129] United States, Andreanof Islands, Alaska 6.4 34.0
[130] [131] United States, Andreanof Islands, Alaska 6.3 41.0
[132] [133] , Kuril Islands, Russia 6.1 33.0
[134] , Kuril Islands, Russia 6.0 51.0
[135] [136] [137] 5.5 11.0 1 person was killed and major damage was reported. 1
[138] [139] 6.1 56.0
[140] [141] [142] 5.1 5.0 1 person died and some damage was caused. 1
[143] [144] [145] 5.7 26.0 Some damage was reported.
[146] [147] 6.0 124.0

December

Month:December
8.0–8.9:0
7.0–7.9:2
6.0–6.9:4
5.0–5.9:125
4.0–4.9:190
Largest:7.5 Mw, Vanuatu
Fatalities:0
Date! rowspan="2" style="width: 310px"
Country and locationMwDepth (km)MMINotesCasualties
DeadInjured
[148] [149] 6.8 39.0
[150] 6.3 34.0 Aftershock.
[151] [152] 6.0 58.0
[153] [154] [155] 7.5 26.0 Some damage was caused.
[156] [157] [158] 7.2 47.0 Aftershock. Some damage was caused.
[159] [160] 6.6 10.0 Aftershock.

Notes and References

  1. Web site: M 6.2 - North Island of New Zealand. United States Geological Survey. July 23, 2017 . January 5, 1973.
  2. Web site: M 6.2 - North Island of New Zealand. United States Geological Survey. April 19, 2021 . January 5, 1973.
  3. Web site: M 6.1 - Vanuatu. United States Geological Survey. July 23, 2017 . January 6, 1973.
  4. Web site: M 6.1 - Vanuatu. United States Geological Survey. April 19, 2021 . January 6, 1973.
  5. Web site: M 6.8 - New Britain region, Papua New Guinea. United States Geological Survey. July 23, 2017 . January 18, 1973.
  6. Web site: M 6.8 - New Britain region, Papua New Guinea. United States Geological Survey. April 19, 2021 . January 18, 1973.
  7. Web site: M 6.1 - offshore Jalisco, Mexico. United States Geological Survey. July 23, 2017 . January 22, 1973.
  8. Web site: M 7.5 - Michoacan, Mexico. United States Geological Survey. July 23, 2017 . January 30, 1973.
  9. Web site: M 7.5 - Michoacan, Mexico. United States Geological Survey. April 19, 2021 . January 30, 1973.
  10. Web site: Significant Earthquake: MEXICO: S, FARIAS, TECOMAN. National Geophysical Data Center. April 19, 2021 . January 30, 1973.
  11. Web site: M 6.1 - Jujuy, Argentina. United States Geological Survey. July 23, 2017 . February 1, 1973.
  12. Web site: M 7.4 - western Sichuan, China. United States Geological Survey. July 23, 2017 . February 6, 1973.
  13. Web site: M 7.4 - western Sichuan, China. United States Geological Survey. April 20, 2021 . February 6, 1973.
  14. Web site: Significant Earthquake: CHINA: SICHUAN PROVINCE. National Geophysical Data Center. April 20, 2021 . February 6, 1973.
  15. Web site: Search Page. Utsu. T.. Catalog of Damaging Earthquakes in the World (Through 2008). April 20, 2021.
  16. Web site: M 5.1 - North Island of New Zealand. United States Geological Survey. July 23, 2017 . February 21, 1973.
  17. Web site: M 5.1 - North Island of New Zealand. United States Geological Survey. April 20, 2021 . February 21, 1973.
  18. Web site: Significant Earthquake: NEW ZEALAND: HAWKES BAY. National Geophysical Data Center. April 20, 2021 . February 21, 1973.
  19. Web site: M 5.3 - 22km W of Malibu, CA. United States Geological Survey. July 23, 2017 . February 21, 1973.
  20. Web site: M 5.3 - 22km W of Malibu, CA. United States Geological Survey. April 20, 2021 . February 21, 1973.
  21. Web site: Significant Earthquake: CALIFORNIA: OXNARD. National Geophysical Data Center. April 20, 2021 . February 21, 1973.
  22. Web site: M 5.2 - southern Iran. United States Geological Survey. July 23, 2017 . February 24, 1973.
  23. Web site: Significant Earthquake: IRAN: KHABIS,HENGAM ISLAND. National Geophysical Data Center. April 20, 2021 . February 24, 1973.
  24. Web site: M 6.0 - Vanuatu. United States Geological Survey. July 23, 2017 . February 24, 1973.
  25. Web site: M 7.2 - Kuril Islands. United States Geological Survey. July 23, 2017 . February 28, 1973.
  26. Web site: M 7.2 - Kuril Islands. United States Geological Survey. April 20, 2021 . February 28, 1973.
  27. Web site: Significant Earthquake: RUSSIA: KURIL ISLANDS, HIROO, URAKAWA. National Geophysical Data Center. April 20, 2021 . February 28, 1973.
  28. Web site: M 6.1 - near the east coast of the Kamchatka Peninsula, Russia. United States Geological Survey. July 23, 2017 . March 4, 1973.
  29. Web site: M 5.5 - near the southeast coast of Australia. United States Geological Survey. July 23, 2017 . March 9, 1973.
  30. Web site: M 5.5 - near the southeast coast of Australia. United States Geological Survey. May 4, 2021 . March 9, 1973.
  31. Web site: Significant Earthquake: AUSTRALIA: WOLLONGONG, SYDNEY. National Geophysical Data Center. May 4, 2021 . March 9, 1973.
  32. Web site: M 6.1 - Kuril Islands. United States Geological Survey. July 23, 2017 . March 12, 1973.
  33. Web site: M 6.1 - Kuril Islands. United States Geological Survey. May 4, 2021 . March 12, 1973.
  34. Web site: M 6.0 - Vanuatu. United States Geological Survey. July 23, 2017 . March 17, 1973.
  35. Web site: M 7.0 - Luzon, Philippines. United States Geological Survey. July 23, 2017 . March 17, 1973.
  36. Web site: M 7.0 - Luzon, Philippines. United States Geological Survey. May 4, 2021 . March 17, 1973.
  37. Web site: Significant Earthquake: PHILIPPINES: QUEZON CITY: CALAUG,LOPEZ,GUIAYANGAN. National Geophysical Data Center. May 4, 2021 . March 17, 1973.
  38. Web site: M 6.5 - Molucca Sea. United States Geological Survey. July 23, 2017 . March 18, 1973.
  39. Web site: M 5.9 - Golfe de Tadjoura, Djibouti. United States Geological Survey. July 23, 2017 . April 1, 1973.
  40. Web site: M 5.9 - Golfe de Tadjoura, Djibouti. United States Geological Survey. May 8, 2021 . April 1, 1973.
  41. Web site: Significant Earthquake: ETHIOPIA: DJIBOUTI. National Geophysical Data Center. May 8, 2021 . April 1, 1973.
  42. Web site: M 6.2 - Colombia. United States Geological Survey. July 23, 2017 . April 3, 1973.
  43. Web site: M 6.2 - Colombia. United States Geological Survey. May 8, 2021 . April 3, 1973.
  44. Web site: M 6.6 - Nicobar Islands, India region. United States Geological Survey. July 23, 2017 . April 7, 1973.
  45. Web site: M 6.4 - Vanuatu. United States Geological Survey. July 23, 2017 . April 8, 1973.
  46. Web site: M 6.4 - Vanuatu. United States Geological Survey. May 8, 2021 . April 8, 1973.
  47. Web site: M 6.1 - Kuril Islands. United States Geological Survey. July 23, 2017 . April 12, 1973.
  48. Web site: M 6.5 - Costa Rica. United States Geological Survey. July 23, 2017 . April 14, 1973.
  49. Web site: M 6.5 - Costa Rica. United States Geological Survey. May 8, 2021 . April 14, 1973.
  50. Web site: Significant Earthquake: COSTA RICA: TILARAN, ARENAL, RIO CHIQUITO. National Geophysical Data Center. May 8, 2021 . April 14, 1973.
  51. Web site: M 6.4 - near the south coast of Papua, Indonesia. United States Geological Survey. July 23, 2017 . April 17, 1973.
  52. Web site: M 6.4 - near the south coast of Papua, Indonesia. United States Geological Survey. May 8, 2021 . April 17, 1973.
  53. Web site: M 6.5 - south of Panama. United States Geological Survey. July 23, 2017 . April 24, 1973.
  54. Web site: M 6.5 - south of Panama. United States Geological Survey. May 8, 2021 . April 24, 1973.
  55. Web site: Significant Earthquake: COLOMBIA; SAN CRISTOBAL, VENEZUELA. National Geophysical Data Center. May 8, 2021 . April 24, 1973.
  56. Web site: M 6.2 - Hawaii region, Hawaii. United States Geological Survey. May 8, 2021 . April 26, 1973.
  57. Web site: M 6.2 - Hawaii region, Hawaii. United States Geological Survey. May 8, 2021 . April 26, 1973.
  58. Web site: Significant Earthquake: HAWAII: HILO. National Geophysical Data Center. May 8, 2021 . April 26, 1973.
  59. Web site: M 6.0 - Unimak Island region, Alaska. United States Geological Survey. July 24, 2017 . May 29, 1973.
  60. Web site: M 6.0 - Unimak Island region, Alaska. United States Geological Survey. May 9, 2021 . May 29, 1973.
  61. Web site: M 6.1 - Vanuatu. United States Geological Survey. July 24, 2017 . June 5, 1973.
  62. Web site: M 6.1 - Vanuatu. United States Geological Survey. May 9, 2021 . June 5, 1973.
  63. Web site: M 6.3 - Solomon Islands. United States Geological Survey. July 24, 2017 . June 9, 1973.
  64. Web site: M 6.3 - Solomon Islands. United States Geological Survey. May 9, 2021 . June 9, 1973.
  65. Web site: M 7.7 - Hokkaido, Japan region. United States Geological Survey. July 24, 2017 . June 17, 1973.
  66. Web site: M 7.7 - Hokkaido, Japan region. United States Geological Survey. May 9, 2021 . June 17, 1973.
  67. Web site: Significant Earthquake: JAPAN: HOKKAIDO ISLAND. National Geophysical Data Center. May 9, 2021 . June 17, 1973.
  68. Web site: M 6.0 - off the coast of Hokkaido, Japan. United States Geological Survey. July 24, 2017 . June 17, 1973.
  69. Web site: M 7.1 - Kuril Islands. United States Geological Survey. July 24, 2017 . June 24, 1973.
  70. Web site: M 7.1 - Kuril Islands. United States Geological Survey. May 9, 2021 . June 24, 1973.
  71. Web site: Significant Earthquake: RUSSIA: KURIL ISLANDS. National Geophysical Data Center. May 9, 2021 . June 24, 1973.
  72. Web site: M 6.6 - Kuril Islands. United States Geological Survey. July 24, 2017 . June 26, 1973.
  73. Web site: M 6.6 - Kuril Islands. United States Geological Survey. May 9, 2021 . June 26, 1973.
  74. Web site: M 6.7 - off the coast of Southeastern Alaska. United States Geological Survey. July 24, 2017 . July 1, 1973.
  75. Web site: M 6.7 - off the coast of Southeastern Alaska. United States Geological Survey. May 12, 2021 . July 1, 1973.
  76. Web site: M 6.0 - Samar, Philippines. United States Geological Survey. July 24, 2017 . July 3, 1973.
  77. Web site: M 6.0 - Samar, Philippines. United States Geological Survey. May 12, 2021 . July 3, 1973.
  78. Web site: M 6.5 - Samar, Philippines. United States Geological Survey. July 24, 2017 . July 3, 1973.
  79. Web site: M 6.5 - Samar, Philippines. United States Geological Survey. May 12, 2021 . July 3, 1973.
  80. Web site: M 6.0 - Catanduanes, Philippines. United States Geological Survey. July 24, 2017 . July 5, 1973.
  81. Web site: M 6.0 - Catanduanes, Philippines. United States Geological Survey. May 12, 2021 . July 5, 1973.
  82. Web site: M 6.9 - western Xizang. United States Geological Survey. July 24, 2017 . July 14, 1973.
  83. Web site: M 6.9 - western Xizang. United States Geological Survey. May 12, 2021 . July 14, 1973.
  84. Web site: M 6.3 - offshore Atacama, Chile. United States Geological Survey. July 24, 2017 . July 31, 1973.
  85. Web site: M 6.3 - offshore Atacama, Chile. United States Geological Survey. May 12, 2021 . July 31, 1973.
  86. Web site: M 6.0 - Solomon Islands. United States Geological Survey. July 24, 2017 . July 31, 1973.
  87. Web site: M 6.0 - Solomon Islands. United States Geological Survey. May 12, 2021 . July 31, 1973.
  88. Web site: M 6.1 - Vanuatu. United States Geological Survey. July 25, 2017 . August 1, 1973.
  89. Web site: M 6.1 - Vanuatu. United States Geological Survey. May 12, 2021 . August 1, 1973.
  90. Web site: M 6.1 - Tonga. United States Geological Survey. July 25, 2017 . August 5, 1973.
  91. Web site: M 6.1 - offshore Atacama, Chile. United States Geological Survey. July 25, 2017 . August 7, 1973.
  92. Web site: M 6.1 - offshore Atacama, Chile. United States Geological Survey. May 12, 2021 . August 7, 1973.
  93. Web site: M 6.3 - offshore Atacama, Chile. United States Geological Survey. July 25, 2017 . August 7, 1973.
  94. Web site: M 6.3 - offshore Atacama, Chile. United States Geological Survey. May 12, 2021 . August 7, 1973.
  95. Web site: M 6.0 - Kuril Islands. United States Geological Survey. July 25, 2017 . August 9, 1973.
  96. Web site: M 6.0 - Kuril Islands. United States Geological Survey. May 12, 2021 . August 9, 1973.
  97. Web site: M 6.1 - Sichuan-Gansu border region, China. United States Geological Survey. July 25, 2017 . August 11, 1973.
  98. Web site: M 6.1 - Sichuan-Gansu border region, China. United States Geological Survey. May 12, 2021 . August 11, 1973.
  99. Web site: M 6.0 - near the north coast of New Guinea, Papua New Guinea. United States Geological Survey. July 25, 2017 . August 13, 1973.
  100. Web site: M 6.0 - near the north coast of New Guinea, Papua New Guinea. United States Geological Survey. May 12, 2021 . August 13, 1973.
  101. Web site: M 6.4 - Yunnan, China. United States Geological Survey. July 25, 2017 . August 16, 1973.
  102. Web site: M 6.4 - Yunnan, China. United States Geological Survey. May 12, 2021 . August 16, 1973.
  103. Web site: M 6.1 - Panay, Philippines. United States Geological Survey. July 25, 2017 . August 18, 1973.
  104. Web site: M 6.1 - Panay, Philippines. United States Geological Survey. May 12, 2021 . August 18, 1973.
  105. Web site: M 6.8 - Oaxaca, Mexico. United States Geological Survey. July 25, 2017 . August 28, 1973.
  106. Web site: M 6.8 - Oaxaca, Mexico. United States Geological Survey. May 12, 2021 . August 28, 1973.
  107. Web site: Significant Earthquake: MEXICO: VERACRUZ, MEXICO CITY. National Geophysical Data Center. May 12, 2021 . August 28, 1973.
  108. Web site: M 6.0 - China-Russia-North Korea border region. United States Geological Survey. July 25, 2017 . September 10, 1973.
  109. Web site: M 6.0 - China-Russia-North Korea border region. United States Geological Survey. May 15, 2021 . September 10, 1973.
  110. Web site: M 6.0 - Negros - Cebu region, Philippines. United States Geological Survey. July 25, 2017 . September 20, 1973.
  111. Web site: M 6.0 - Negros - Cebu region, Philippines. United States Geological Survey. May 15, 2021 . September 20, 1973.
  112. Web site: M 6.5 - North Korea. United States Geological Survey. July 25, 2017 . September 29, 1973.
  113. Web site: M 6.5 - North Korea. United States Geological Survey. May 15, 2021 . September 29, 1973.
  114. Web site: M 6.5 - offshore Valparaíso, Chile. United States Geological Survey. July 26, 2017 . October 5, 1973.
  115. Web site: M 6.5 - offshore Valparaiso, Chile. United States Geological Survey. May 15, 2021 . October 5, 1973.
  116. Web site: M 6.7 - offshore Valparaíso, Chile. United States Geological Survey. July 26, 2017 . October 5, 1973.
  117. Web site: M 6.7 - offshore Valparaiso, Chile. United States Geological Survey. May 15, 2021 . October 5, 1973.
  118. Web site: Significant Earthquake: CHILE: VALPARAISO, LA LIGUA, SANTIAGO. National Geophysical Data Center. May 15, 2021 . October 5, 1973.
  119. Web site: M 7.0 - east of the South Sandwich Islands. United States Geological Survey. July 26, 2017 . October 6, 1973.
  120. Web site: M 6.4 - Vanuatu. United States Geological Survey. July 26, 2017 . October 9, 1973.
  121. Web site: M 6.4 - Vanuatu. United States Geological Survey. May 15, 2021 . October 9, 1973.
  122. Web site: M 6.0 - Jalisco, Mexico. United States Geological Survey. July 26, 2017 . October 18, 1973.
  123. Web site: M 6.0 - Jalisco, Mexico. United States Geological Survey. May 15, 2021 . October 18, 1973.
  124. Web site: M 6.1 - Tarija, Bolivia. United States Geological Survey. July 26, 2017 . October 25, 1973.
  125. Web site: M 5.8 - Greece. United States Geological Survey. July 26, 2017 . November 4, 1973.
  126. Web site: M 5.8 - Greece. United States Geological Survey. May 15, 2021 . November 4, 1973.
  127. Web site: Significant Earthquake: GREECE: LEUKAS ISLAND, PREVEZA, VONITSA. National Geophysical Data Center. May 15, 2021 . November 4, 1973.
  128. Web site: M 6.4 - Andreanof Islands, Aleutian Islands, Alaska. United States Geological Survey. July 26, 2017 . November 6, 1973.
  129. Web site: M 6.4 - Andreanof Islands, Aleutian Islands, Alaska. United States Geological Survey. May 15, 2021 . November 6, 1973.
  130. Web site: M 6.3 - Andreanof Islands, Aleutian Islands, Alaska. United States Geological Survey. July 26, 2017 . November 6, 1973.
  131. Web site: M 6.3 - Andreanof Islands, Aleutian Islands, Alaska. United States Geological Survey. May 15, 2021 . November 6, 1973.
  132. Web site: M 6.1 - Kuril Islands. United States Geological Survey. July 26, 2017 . November 8, 1973.
  133. Web site: M 6.1 - Kuril Islands. United States Geological Survey. May 15, 2021 . November 8, 1973.
  134. Web site: M 6.0 - Kuril Islands. United States Geological Survey. July 26, 2017 . November 11, 1973.
  135. Web site: M 5.5 - central Iran. United States Geological Survey. July 26, 2017 . November 11, 1973.
  136. Web site: M 5.5 - central Iran. United States Geological Survey. May 15, 2021 . November 11, 1973.
  137. Web site: Significant Earthquake: IRAN: QESHLAGH,DEH BID. National Geophysical Data Center. May 15, 2021 . November 11, 1973.
  138. Web site: M 6.1 - near the east coast of Honshu, Japan. United States Geological Survey. July 26, 2017 . November 19, 1973.
  139. Web site: M 6.1 - near the east coast of Honshu, Japan. United States Geological Survey. May 15, 2021 . November 19, 1973.
  140. Web site: M 5.1 - Azores Islands, Portugal. United States Geological Survey. July 26, 2017 . November 23, 1973.
  141. Web site: M 5.1 - Azores Islands, Portugal. United States Geological Survey. May 15, 2021 . November 23, 1973.
  142. Web site: Significant Earthquake: AZORES: PICO, FAIAL, TERCEIRA. National Geophysical Data Center. May 15, 2021 . November 23, 1973.
  143. Web site: M 5.7 - Crete, Greece. United States Geological Survey. July 26, 2017 . November 29, 1973.
  144. Web site: M 5.7 - Crete, Greece. United States Geological Survey. May 15, 2021 . November 29, 1973.
  145. Web site: Significant Earthquake: GREECE: CRETE, PALAEOCHORA, CHANIA. National Geophysical Data Center. May 15, 2021 . November 29, 1973.
  146. Web site: M 6.0 - Vanuatu. United States Geological Survey. July 26, 2017 . November 30, 1973.
  147. Web site: M 6.0 - Vanuatu. United States Geological Survey. May 15, 2021 . November 30, 1973.
  148. Web site: M 6.8 - Vanuatu. United States Geological Survey. July 26, 2017 . December 9, 1973.
  149. Web site: M 6.8 - Vanuatu. United States Geological Survey. May 16, 2021 . December 9, 1973.
  150. Web site: M 6.3 - Vanuatu. United States Geological Survey. July 26, 2017 . December 9, 1973.
  151. Web site: M 6.0 - Sumba region, Indonesia. United States Geological Survey. July 26, 2017 . December 19, 1973.
  152. Web site: M 6.0 - Sumba region, Indonesia. United States Geological Survey. May 16, 2021 . December 19, 1973.
  153. Web site: M 7.5 - Vanuatu. United States Geological Survey. July 26, 2017 . December 28, 1973.
  154. Web site: M 7.5 - Vanuatu. United States Geological Survey. May 16, 2021 . December 28, 1973.
  155. Web site: Significant Earthquake: VANUATU ISLANDS: ESPIRITU SANTO, LUGANILLE. National Geophysical Data Center. May 16, 2021 . December 28, 1973.
  156. Web site: M 7.2 - Vanuatu. United States Geological Survey. July 26, 2017 . December 29, 1973.
  157. Web site: M 7.2 - Vanuatu. United States Geological Survey. May 16, 2021 . December 29, 1973.
  158. Web site: Significant Earthquake: VANUATU ISLANDS: LUGANVILLE, LAMAP. National Geophysical Data Center. May 16, 2021 . December 29, 1973.
  159. Web site: M 6.6 - Vanuatu. United States Geological Survey. July 26, 2017 . December 30, 1973.
  160. Web site: M 6.6 - Vanuatu. United States Geological Survey. May 16, 2021 . December 30, 1973.