List of earthquakes in 1980 explained

Year:1980
Location Map:Earth
Largest: Solomon Islands, Santa Cruz Islands, (Magnitude 7.9) July 17
Deadliest: Algeria, Chlef Province, (Magnitude 7.3) October 10 5,000 deaths
Fatalities:10,326
9.0+:0
8.0–8.9:0
7.0–7.9:6
6.0–6.9:90
5.0–5.9:1,311
4.0–4.9:3,410

This is a list of earthquakes in 1980. Only earthquakes of magnitude 6 or above are included, unless they result in damage and/or casualties, or are notable for some other reason. Events in remote areas will not be listed but included in statistics and maps. Countries are entered on the lists in order of their status in this particular year. 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. Although activity was once again below average, 1980 had several deadly events which helped the overall number of deaths surpass 10,000. The largest of just 6 magnitude 7.0+ events measured 7.9 and struck the Solomon Islands in July. The last quarter of the year had the bulk of the deaths. Algeria had its largest earthquake in October. The magnitude 7.3 event caused 5,000 deaths. A fortnight later Mexico suffered 300 lost lives. At the end of November southern Italy was struck by a magnitude 6.9 earthquake which led to nearly 4,700 deaths. Other areas experiencing deaths were Portugal and Nepal.

By death toll

RankDeath tollMagnitudeLocationMMIDepth (km)Date
1 Algeria, Chlef Province
2 Italy, Campania
3 Mexico, Puebla
4 Nepal, Sudurpashchim Province
5 Portugal, Azores
6, Qom Province
7 India, Jammu and Kashmir (union territory)
Listed are earthquakes with at least 10 dead.

By magnitude

RankMagnitude Death tollLocationMMIDepth (km)Date
1 Solomon Islands, Santa Cruz Islands
2 Solomon Islands, Santa Cruz Islands
3 Algeria, Chlef Province
= 4 France, southeast of Loyalty Islands, New Caledonia
= 4 United States, off the coast of northern California
5, Kuril Islands, Russia
Listed are earthquakes with at least 7.0 magnitude.

By month

January

Month:January
8.0–8.9:0
7.0–7.9:0
6.0–6.9:4
5.0–5.9:126
4.0–4.9:260
Largest:6.7 Mw Portugal
Deadliest:6.7 Mw Portugal
69 deaths
Fatalities:69
Date! rowspan="2" style="width: 280px"
Country and locationMwDepth (km)MMINotesCasualties
DeadInjured
[1] [2] 6.7 10.0 The 1980 Azores Islands earthquake resulted in 69 deaths and 600 injuries. $5 million (1980 rate) in property damage was reported. 69 600
[3] 6.0 63.0
[4] [5] 5.8 11.0 The 1980 Livermore earthquake left 50 people injured and caused major damage. Damage reached $11.5 million (1980 rate). The Lawrence Livermore National Laboratory in particular was impacted by the shaking. 50

February

Month:February
8.0–8.9:0
7.0–7.9:1
6.0–6.9:8
5.0–5.9:117
4.0–4.9:262
Largest:7.0 Mw, Russia
Fatalities:0
Date! rowspan="2" style="width: 280px"
Country and locationMwDepth (km)MMINotesCasualties
DeadInjured
[6] 6.5 10.0
[7] 6.1 63.0
[8] 6.2 33.0
[9] 7.0 44.0
[10] 6.6 53.0
[11] 6.1 104.0

March

Month:March
8.0–8.9:0
7.0–7.9:0
6.0–6.9:8
5.0–5.9:111
4.0–4.9:365
Largest:6.9 Mw United States
Fatalities:0
Date! rowspan="2" style="width: 280px"
Country and locationMwDepth (km)MMINotesCasualties
DeadInjured
[12] 6.7 38.0
[13] 6.9 33.0
[14] 6.3 43.0

April

Month:April
8.0–8.9:0
7.0–7.9:0
6.0–6.9:5
5.0–5.9:105
4.0–4.9:358
Largest:6.7 Mw Fiji
Fatalities:0
Date! rowspan="2" style="width: 280px"
Country and locationMwDepth (km)MMINotesCasualties
DeadInjured
[15] Fiji, south of 6.7 79.0
[16] [17] 5.8 84.0 Some damage was caused.

May

Month:May
8.0–8.9:0
7.0–7.9:0
6.0–6.9:11
5.0–5.9:105
4.0–4.9:398
Largest:6.4 Mw Australia
Fatalities:0
Date! rowspan="2" style="width: 280px"
Country and locationMwDepth (km)MMINotesCasualties
DeadInjured
[18] 6.2 46.0
[19] 6.1 20.0
[20] [21] 4.5 24.0 Some damage was reported.
[22] [23] 5.3 105.0 Some damage was reported.
[24] 5.7 1.5 This event served as the catalyst for the 1980 eruption of Mount St. Helens. For weeks prior to this minor eruptions and earthquakes rattled the area. The catastrophic explosion which caused the destruction of the surrounding area occurred seconds after this earthquake.
[25] [26] 5.8 9.0 30 people were injured and some damage was reported. Costs were $5 million (1980 rate). 30
[27] [28] 6.1 6.8 First in a series of large events over the coming days to affect the area. 7 people were injured and some damage was reported. Costs reached $1.5 million (1980 rate). 7
[29] 6.0 6.7
[30] 6.1 11.9
[31] 6.1 114.0
[32] 6.1 33.0
[33] 6.2 13.8

June

Month:June
8.0–8.9:0
7.0–7.9:0
6.0–6.9:12
5.0–5.9:139
4.0–4.9:280
Largest:6.8 Mw Philippines
Deadliest:6.3 Mw Mexico
1 death
Fatalities:1
Date! rowspan="2" style="width: 280px"
Country and locationMwDepth (km)MMINotesCasualties
DeadInjured
[34] [35] 6.3 6.0 1 death was caused as well as 100 injuries. Some damage was reported. 1 100
[36] 6.0 19.0 Foreshock to June 18 event.
[37] 6.0 61.0 Foreshock of June 25 event.
[38] 6.5 43.0
[39] 6.8 54.0
[40] 6.5 49.0
[41] [42] 6.2 15.0 7 people were hurt and some damage was caused. 7

July

Month:July
8.0–8.9:0
7.0–7.9:2
6.0–6.9:10
5.0–5.9:123
4.0–4.9:299
Largest:7.9 Mw Solomon Islands
Deadliest:6.5 Mw Nepal
200 deaths
Fatalities:203
Date! rowspan="2" style="width: 280px"
Country and locationMwDepth (km)MMINotesCasualties
DeadInjured
[43] [44] 7.5 33.0 Foreshock to July 17 event. Some damage was caused.
[45] [46] 6.4 14.0 Doublet earthquake. 1 person was killed and at least 101 were injured. $5 million (1980 rate) in damage was reported. 1 101
[47] 6.3 20.0
[48] 6.7 33.0 Aftershock.
[49] [50] 5.2 33.0 Some damage was caused.
[51] 4.0 10.0 Aftershock of July 9 events. 1 person was killed and 17 were injured. Damage costs were $5 million (1980 rate). 1 17
[52] 6.6 49.0
[53] 6.5 84.0
[54] 7.9 33.0 Largest event in 1980.
[55] 6.1 110.0
[56] [57] 5.4 62.0 1 person died and major damage was reported. 1
[58] [59] 5.0 10.0 Largest event in Kentucky's history. 2 people were injured and some property damage was caused. Costs reached $1 million (1980 rate). 2
[60] 6.7 48.0 Aftershock of July 17 event.
[61] [62] 6.5 18.0 200 people died and at least 101 were injured during the 1980 Nepal earthquake. Major property damage was caused with costs of $245 million (1980 rate). 200 101

August

Month:August
8.0–8.9:0
7.0–7.9:0
6.0–6.9:4
5.0–5.9:92
4.0–4.9:230
Largest:6.4 Mw Guatemala
Deadliest:5.2 Mw India
15 deaths
Fatalities:26
Date! rowspan="2" style="width: 280px"
Country and locationMwDepth (km)MMINotesCasualties
DeadInjured
[63] 6.3 33.0 Different location to previous events.
[64] [65] 6.4 22.0 2 deaths were caused by the 1980 Honduras earthquake. At least 101 injuries were caused. Some damage was caused. 2 101
[66] [67] 5.6 55.0 8 people were killed and 100 were injured. $5 million (1980 rate) in damage was caused. 8 100
[68] [69] 5.2 25.0 Doublet earthquake with both events 14 minutes apart. At least 16 people were killed in total. 40 people were injured. Many homes were destroyed. 16 40
[70] [71] 5.2 33.0

September

Month:September
8.0–8.9:0
7.0–7.9:0
6.0–6.9:4
5.0–5.9:86
4.0–4.9:180
Largest:6.5 Mw Papua New Guinea
Deadliest:6.0 Mw Japan
2 deaths
Fatalities:2
Date! rowspan="2" style="width: 280px"
Country and locationMwDepth (km)MMINotesCasualties
DeadInjured
[72] 6.2 0.0 Nuclear test.
[73] [74] 6.0 73.0 2 people were killed and 73 were hurt. Costs of $1 million (1980 rate) in damage was reported. 2 73
[75] 6.5 33.0
[76] 6.0 68.0

October

Month:October
8.0–8.9:0
7.0–7.9:2
6.0–6.9:12
5.0–5.9:111
4.0–4.9:293
Largest:7.3 Mw Algeria
Deadliest:7.3 Mw Algeria
5,000 deaths
Fatalities:5,300
Date! rowspan="2" style="width: 280px"
Country and locationMwDepth (km)MMINotesCasualties
DeadInjured
[77] [78] 5.6 32.0 Some damage was reported.
[79] 6.0 33.0
[80] [81] 7.3 10.0 Deadliest event in 1980. The 1980 El Asnam earthquake was the largest event in Algerian history. 5,000 people died and over 9,000 were injured. Catastrophic property damage was caused. 25,000 homes were destroyed. Damage costs reached $5.2 billion (1980 rate). 5,000 9,000
[82] 6.2 10.0 Aftershock.
[83] 6.7 33.0 Foreshock of October 25 event.
[84] [85] 6.4 72.0 300 people were killed in the 1980 Oaxaca earthquake. At least 101 people were injured. $5 million (1980 rate) in damage costs were reported. 300 101
[86] 6.7 33.0 Foreshock of later event.
[87] 7.2 33.0
[88] 6.5 33.0 Aftershock.
[89] 6.1 48.0

November

Month:November
8.0–8.9:0
7.0–7.9:1
6.0–6.9:5
5.0–5.9:109
4.0–4.9:268
Largest:7.2 Mw United States
Deadliest:6.9 Mw Italy
4,689 deaths
Fatalities:4,696
Date! rowspan="2" style="width: 280px"
Country and locationMwDepth (km)MMINotesCasualties
DeadInjured
[90] [91] 7.2 19.0 The 1980 Eureka earthquake caused 6 injuries and $2 million (1980 rate) in property damage. 6
[92] [93] 4.9 71.0 7 deaths were caused as well as $1 million (1980 rate) in damage. 7
[94] 6.1 17.0
[95] [96] 6.9 10.0 The 1980 Irpinia earthquake devastated southern Italy. 4,689 people were killed and 7,700 were injured. $20 billion (1980 rate) in property damage was caused. 4,689 7,700
[97] [98] 5.0 40.0 36 people were hurt. 30 homes were destroyed. 36

December

Month:December
8.0–8.9:0
7.0–7.9:0
6.0–6.9:7
5.0–5.9:104
4.0–4.9:222
Largest:6.8 Mw Canada
Deadliest:5.8 Mw
26 deaths
Fatalities:29
Date! rowspan="2" style="width: 280px"
Country and locationMwDepth (km)MMINotesCasualties
DeadInjured
[99] 6.1 80.0
[100] 6.8 10.0
[101] [102] 5.8 33.0 26 people were killed. Property damage was reported with costs reaching $5 million (1980 rate). 26
[103] 6.1 33.0
[104] [105] 5.5 41.0 Aftershock of December 19 event. 3 people died and 139 were injured. $1 million (1980 rate) in further property damage was caused. 3 139
[106] 6.5 33.0

Notes and References

  1. Web site: M 6.7 - Azores Islands, Portugal. United States Geological Survey. June 23, 2021. January 1, 1980.
  2. Web site: Significant Earthquake: AZORES: TERCEIRA, ANGRA DO HEROISMO. National Geophysical Data Center. June 23, 2021. January 1, 1980.
  3. Web site: M 6.0 - Mindanao, Philippines. United States Geological Survey. June 23, 2021. January 2, 1980.
  4. Web site: M 5.8 - San Francisco Bay area, California. United States Geological Survey. June 23, 2021. January 24, 1980.
  5. Web site: Significant Earthquake: CALIFORNIA: LIVERMORE. National Geophysical Data Center. June 23, 2021. January 24, 1980.
  6. Web site: M 6.5 - Macquarie Island region. United States Geological Survey. June 23, 2021. February 7, 1980.
  7. Web site: M 6.1 - 176 km N of Thang, India. United States Geological Survey. June 23, 2021. February 13, 1980.
  8. Web site: M 6.2 - 142 km NNW of Rikaze, China. United States Geological Survey. June 23, 2021. February 22, 1980.
  9. Web site: M 7.0 - Kuril Islands. United States Geological Survey. June 23, 2021. February 23, 1980.
  10. Web site: M 6.6 - 51 km S of Kimbe, Papua New Guinea. United States Geological Survey. June 23, 2021. February 27, 1980.
  11. Web site: M 6.1 - 78 km E of Pondaguitan, Philippines. United States Geological Survey. June 23, 2021. February 29, 1980.
  12. Web site: M 6.7 - southeast of the Loyalty Islands. United States Geological Survey. June 23, 2021. March 8, 1980.
  13. Web site: M 6.9 - Fox Islands, Aleutian Islands, Alaska. United States Geological Survey. June 23, 2021. March 24, 1980.
  14. Web site: M 6.3 - Luzon, Philippines. United States Geological Survey. June 23, 2021. March 31, 1980.
  15. Web site: M 6.7 - south of the Fiji Islands. United States Geological Survey. June 23, 2021. April 13, 1980.
  16. Web site: M 5.8 - 66 km S of Sidareja, Indonesia. United States Geological Survey. June 23, 2021. April 16, 1980.
  17. Web site: Significant Earthquake: INDONESIA: JAVA: TASIKMALAJA. National Geophysical Data Center. June 23, 2021. April 16, 1980.
  18. Web site: M 6.2 - 29 km NNE of Hashtpar, Iran. United States Geological Survey. June 23, 2021. May 4, 1980.
  19. Web site: M 6.1 - Vanuatu. United States Geological Survey. June 23, 2021. May 12, 1980.
  20. Web site: M 4.5 - southern Italy. United States Geological Survey. June 23, 2021. May 14, 1980.
  21. Web site: Significant Earthquake: ITALY: S. National Geophysical Data Center. June 23, 2021. May 14, 1980.
  22. Web site: M 5.3 - Guatemala. United States Geological Survey. June 23, 2021. May 18, 1980.
  23. Web site: Significant Earthquake: GUATEMALA: S COAST. National Geophysical Data Center. June 23, 2021. May 18, 1980.
  24. Web site: M 5.7 - Mount St. Helens area, Washington. United States Geological Survey. June 23, 2021. May 18, 1980.
  25. Web site: M 5.8 - 18 km E of Raška, Serbia. United States Geological Survey. June 23, 2021. May 18, 1980.
  26. Web site: Significant Earthquake: BALKANS NW: SERBIA. National Geophysical Data Center. June 23, 2021. May 18, 1980.
  27. Web site: M 6.1 - Central California. United States Geological Survey. June 23, 2021. May 25, 1980.
  28. Web site: Significant Earthquake: CALIFORNIA: MAMMOTH LAKES. National Geophysical Data Center. June 23, 2021. May 25, 1980.
  29. Web site: M 6.0 - 7 km ENE of Mammoth Lakes, California. United States Geological Survey. June 23, 2021. May 25, 1980.
  30. Web site: M 6.1 - 8 km W of Aspen Springs, California. United States Geological Survey. June 23, 2021. May 25, 1980.
  31. Web site: M 6.1 - 134 km NE of Iquique, Chile. United States Geological Survey. June 23, 2021. May 26, 1980.
  32. Web site: M 6.1 - 80 km W of Neiafu, Tonga. United States Geological Survey. June 23, 2021. May 27, 1980.
  33. Web site: M 6.2 - 9 km SW of Aspen Springs, California. United States Geological Survey. June 23, 2021. May 27, 1980.
  34. Web site: M 6.3 - 5km SE of Alberto Oviedo Mota, B.C., MX. United States Geological Survey. June 23, 2021. June 9, 1980.
  35. Web site: Significant Earthquake: MEXICO: NW. National Geophysical Data Center. June 23, 2021. June 9, 1980.
  36. Web site: M 6.0 - 58 km E of Union, Philippines. United States Geological Survey. June 23, 2021. June 9, 1980.
  37. Web site: M 6.0 - 93 km S of Kokopo, Papua New Guinea. United States Geological Survey. June 23, 2021. June 18, 1980.
  38. Web site: M 6.5 - 79 km NNE of Hihifo, Tonga. United States Geological Survey. June 23, 2021. June 18, 1980.
  39. Web site: M 6.8 - 55 km ENE of Cortes, Philippines. United States Geological Survey. June 23, 2021. June 18, 1980.
  40. Web site: M 6.5 - 117 km SSW of Kokopo, Papua New Guinea. United States Geological Survey. June 23, 2021. June 25, 1980.
  41. Web site: M 6.2 - 19 km SSE of It?, Japan. United States Geological Survey. June 23, 2021. June 29, 1980.
  42. Web site: Significant Earthquake: JAPAN: HONSHU: S COAST. National Geophysical Data Center. June 23, 2021. June 29, 1980.
  43. Web site: M 7.5 - 196 km SSE of Lata, Solomon Islands. United States Geological Survey. June 24, 2021. July 8, 1980.
  44. Web site: Significant Earthquake: SOLOMON ISLANDS: SANTA CRUZ ISLANDS: BANKS. National Geophysical Data Center. June 24, 2021. July 8, 1980.
  45. Web site: M 6.4 - 6 km S of Áno Lekhónia, Greece. United States Geological Survey. June 24, 2021. July 9, 1980.
  46. Web site: Significant Earthquake: GREECE: AEGEAN SEA: MAGNESIA. National Geophysical Data Center. June 24, 2021. July 9, 1980.
  47. Web site: M 6.3 - 14 km SE of Vamvakoú, Greece. United States Geological Survey. June 24, 2021. July 9, 1980.
  48. Web site: M 6.7 - 213 km NW of Sola, Vanuatu. United States Geological Survey. June 24, 2021. July 9, 1980.
  49. Web site: M 5.2 - 2 km WSW of Isfara, Tajikistan. United States Geological Survey. June 24, 2021. July 11, 1980.
  50. Web site: Significant Earthquake: TAJIKISTAN: SHURAB, NEFTEABAD. National Geophysical Data Center. June 24, 2021. July 11, 1980.
  51. Web site: Significant Earthquake: GREECE: VOLOS. National Geophysical Data Center. June 24, 2021. July 12, 1980.
  52. Web site: M 6.6 - Kermadec Islands, New Zealand. United States Geological Survey. June 24, 2021. July 14, 1980.
  53. Web site: M 6.5 - 74 km SW of Angoram, Papua New Guinea. United States Geological Survey. June 24, 2021. July 16, 1980.
  54. Web site: M 7.9 - 199 km S of Lata, Solomon Islands. United States Geological Survey. June 24, 2021. July 17, 1980.
  55. Web site: M 6.1 - 115 km ESE of Vallenar, Chile. United States Geological Survey. June 24, 2021. July 19, 1980.
  56. Web site: M 5.4 - 4 km E of Langar?d, Iran. United States Geological Survey. June 24, 2021. July 22, 1980.
  57. Web site: Significant Earthquake: IRAN: LAHIJAN, RASHT. National Geophysical Data Center. June 24, 2021. July 22, 1980.
  58. Web site: M 5.0 - 2 km SW of Sharpsburg, Kentucky. United States Geological Survey. June 24, 2021. July 27, 1980.
  59. Web site: Significant Earthquake: KENTUCKY: MAYSVILLE. National Geophysical Data Center. June 24, 2021. July 27, 1980.
  60. Web site: M 6.7 - 156 km WNW of Sola, Vanuatu. United States Geological Survey. June 24, 2021. July 29, 1980.
  61. Web site: M 6.5 - Nepal. United States Geological Survey. June 24, 2021. July 29, 1980.
  62. Web site: Significant Earthquake: NEPAL-INDIA: PITHORAGARH. National Geophysical Data Center. June 24, 2021. July 29, 1980.
  63. Web site: M 6.3 - 56 km SW of Lata, Solomon Islands. United States Geological Survey. June 24, 2021. August 2, 1980.
  64. Web site: M 6.4 - 19 km NNE of Puerto Barrios, Guatemala. United States Geological Survey. June 24, 2021. August 9, 1980.
  65. Web site: Significant Earthquake: HONDURAS; N GUATEMALA: IZABEL PROVINCE. National Geophysical Data Center. June 24, 2021. August 9, 1980.
  66. Web site: M 5.6 - 5 km WSW of El Triunfo, Ecuador. United States Geological Survey. June 24, 2021. August 18, 1980.
  67. Web site: Significant Earthquake: ECUADOR: W, GUAYAQUIL. National Geophysical Data Center. June 24, 2021. August 18, 1980.
  68. Web site: M 5.2 - 10 km SW of Bhadarw?h, India. United States Geological Survey. June 24, 2021. August 23, 1980.
  69. Web site: Significant Earthquake: INDIA: KASHMIR. National Geophysical Data Center. June 24, 2021. August 23, 1980.
  70. Web site: M 5.2 - 18 km SSW of Bhadarw?h, India. United States Geological Survey. June 24, 2021. August 23, 1980.
  71. Web site: Significant Earthquake: INDIA: KASHMIR. National Geophysical Data Center. June 24, 2021. August 23, 1980.
  72. Web site: M 6.2 Nuclear Explosion - eastern Kazakhstan. United States Geological Survey. June 24, 2021. September 14, 1980.
  73. Web site: M 6.0 - 7 km NNE of Kisarazu, Japan. United States Geological Survey. June 24, 2021. September 24, 1980.
  74. Web site: Significant Earthquake: JAPAN: TOKYO, YOKOHAMA. National Geophysical Data Center. June 24, 2021. September 24, 1980.
  75. Web site: M 6.5 - 15 km SW of Aitape, Papua New Guinea. United States Geological Survey. June 24, 2021. September 26, 1980.
  76. Web site: M 6.0 - 74 km W of Panguna, Papua New Guinea. United States Geological Survey. June 24, 2021. September 28, 1980.
  77. Web site: M 5.6 - 31 km W of Taradale, New Zealand. United States Geological Survey. June 24, 2021. October 5, 1980.
  78. Web site: Significant Earthquake: NEW ZEALAND: GISBORNE, HAWERA, EASTBOURNE, NAPIER. National Geophysical Data Center. June 24, 2021. October 5, 1980.
  79. Web site: M 6.0 - 75 km NNE of Hihifo, Tonga. United States Geological Survey. June 24, 2021. October 9, 1980.
  80. Web site: M 7.3 - 3 km NNE of Chlef, Algeria. United States Geological Survey. June 24, 2021. October 10, 1980.
  81. Web site: Significant Earthquake: ALGERIA: NORTHERN. National Geophysical Data Center. June 24, 2021. October 10, 1980.
  82. Web site: M 6.2 - 5 km W of El Attaf, Algeria. United States Geological Survey. June 24, 2021. October 10, 1980.
  83. Web site: M 6.7 - 241 km ESE of Tadine, New Caledonia. United States Geological Survey. June 24, 2021. October 24, 1980.
  84. Web site: M 6.4 - 1 km NE of Piaxtla, Mexico. United States Geological Survey. June 24, 2021. October 24, 1980.
  85. Web site: Significant Earthquake: MEXICO: S, HUAJAPAN DE LEON, OAXACA. National Geophysical Data Center. June 24, 2021. October 24, 1980.
  86. Web site: M 6.7 - 226 km ESE of Tadine, New Caledonia. United States Geological Survey. June 24, 2021. October 25, 1980.
  87. Web site: M 7.2 - 207 km E of Tadine, New Caledonia. United States Geological Survey. June 24, 2021. October 25, 1980.
  88. Web site: M 6.5 - 271 km ESE of Tadine, New Caledonia. United States Geological Survey. June 24, 2021. October 25, 1980.
  89. Web site: M 6.1 - 5 km E of San Julian, Philippines. United States Geological Survey. June 24, 2021. October 26, 1980.
  90. Web site: M 7.2 - 11 km WSW of Big Lagoon, California. United States Geological Survey. June 25, 2021. November 8, 1980.
  91. Web site: Significant Earthquake: CALIFORNIA: NORTH COAST. National Geophysical Data Center. June 25, 2021. November 8, 1980.
  92. Web site: M 4.9 - 23 km WSW of Vinchos, Peru. United States Geological Survey. June 25, 2021. November 12, 1980.
  93. Web site: Significant Earthquake: PERU: S CENTRAL. National Geophysical Data Center. June 25, 2021. November 12, 1980.
  94. Web site: M 6.1 - 15 km ENE of Gangtok, India. United States Geological Survey. June 25, 2021. November 19, 1980.
  95. Web site: M 6.9 - 2 km N of Cairano, Italy. United States Geological Survey. June 25, 2021. November 23, 1980.
  96. Web site: Significant Earthquake: ITALY: AVELLINO, POTENZA, CASERTA, NAPLES. National Geophysical Data Center. June 25, 2021. November 23, 1980.
  97. Web site: M 5.0 - 18 km NNE of Cúcuta, Colombia. United States Geological Survey. June 25, 2021. November 26, 1980.
  98. Web site: Significant Earthquake: VENEZUELA: E. National Geophysical Data Center. June 25, 2021. November 26, 1980.
  99. Web site: M 6.1 - 153 km NNE of Calama, Chile. United States Geological Survey. June 25, 2021. December 11, 1980.
  100. Web site: M 6.8 - 212 km SW of Port McNeill, Canada. United States Geological Survey. June 25, 2021. December 17, 1980.
  101. Web site: M 5.8 - 21 km WSW of Qom, Iran. United States Geological Survey. June 25, 2021. December 19, 1980.
  102. Web site: Significant Earthquake: IRAN: N CENTRAL, TEHRAN. National Geophysical Data Center. June 25, 2021. December 19, 1980.
  103. Web site: M 6.1 - 61 km E of ‘Ohonua, Tonga. United States Geological Survey. June 25, 2021. December 19, 1980.
  104. Web site: M 5.5 - 30 km WSW of Qom, Iran. United States Geological Survey. June 25, 2021. December 22, 1980.
  105. Web site: Significant Earthquake: IRAN: N CENTRAL, TEHRAN. National Geophysical Data Center. June 25, 2021. December 22, 1980.
  106. Web site: M 6.5 - 293 km ENE of Kuril’sk, Russia. United States Geological Survey. June 25, 2021. December 31, 1980.

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