List of earthquakes in 1939
This is a list of earthquakes in 1939. 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. 1939 was one of the deadliest years for earthquakes with over 60,000 deaths. Two major events resulted in this being the case. In January, a quake struck Chile causing 30,000 deaths, and in December Turkey was shaken by a quake which left 32,700 dead. Several other events occurred in Japan, Peru, Turkey and Ghana which left some fatalities.
Strongest magnitude | Indonesia, Gulf of Tomini (Magnitude 8.1) December 21 |
---|---|
Deadliest | Turkey, Erzincan Province (Magnitude 7.8) December 26 32,700 deaths |
Total fatalities | 62,860 |
Number by magnitude | |
9.0+ | 0 |
8.0−8.9 | 1 |
7.0−7.9 | 17 |
6.0−6.9 | 61 |
5.0−5.9 | 3 |
Overall
By death toll
Rank | Death toll | Magnitude | Location | MMI | Depth (km) | Date |
---|---|---|---|---|---|---|
1 | 32,700 | 7.8 | Turkey, Erzincan Province | XII (Extreme) | 20.0 | December 26 |
2 | 30,000 | 7.8 | Chile, Bio-Bio Region | X (Extreme) | 35.0 | January 25 |
3 | 41 | 6.3 | Turkey, Izmir Province | IX (Violent) | 35.0 | September 21 |
4 | 37 | 0.0 | Peru, Madre de Dios Region | ( ) | 0.0 | June 24 |
5 | 27 | 7.0 | Japan, off the coast of Akita Prefecture, Honshu | ( ) | 10.0 | May 1 |
6 | 22 | 6.4 | Ghana, Central Region (Ghana) | IX (Violent) | 15.0 | June 22 |
7 | 13 | 5.9 | Turkey, Erzincan Province | VII (Very strong) | 80.0 | November 21 |
8 | 12 | 7.8 | Solomon Islands | ( ) | 15.0 | April 30 |
- Note: At least 10 casualties
By magnitude
Rank | Magnitude | Death toll | Location | MMI | Depth (km) | Date |
---|---|---|---|---|---|---|
1 | 8.1 | 0 | Indonesia, Gulf of Tomini | ( ) | 35.0 | December 21 |
= 2 | 7.8 | 30,000 | Chile, Bio-Bio Region | X (Extreme) | 35.0 | January 25 |
= 2 | 7.8 | 5 | Papua New Guinea, south of Bougainville Island | ( ) | 35.0 | January 30 |
= 2 | 7.8 | 12 | Solomon Islands | ( ) | 15.0 | April 30 |
= 2 | 7.8 | 32,700 | Turkey, Erzincan Province | XII (Extreme) | 20.0 | December 26 |
3 | 7.5 | 0 | southern Indian Ocean | ( ) | 15.0 | March 21 |
= 4 | 7.4 | 0 | Chile, Atacama Region | ( ) | 35.0 | April 18 |
= 4 | 7.4 | 0 | Vanuatu | ( ) | 135.0 | October 17 |
5 | 7.3 | 0 | Costa Rica, Alajuela Province | ( ) | 25.0 | December 21 |
= 6 | 7.2 | 0 | Tonga | ( ) | 100.0 | June 8 |
= 6 | 7.2 | 0 | Vanuatu | ( ) | 180.0 | August 12 |
7 | 7.1 | 0 | United States, Near Islands, Alaska | ( ) | 15.0 | September 8 |
= 8 | 7.0 | 0 | Solomon Islands | ( ) | 15.0 | February 3 |
= 8 | 7.0 | 0 | Vanuatu | ( ) | 30.0 | April 5 |
= 8 | 7.0 | 0 | Russia, off the coast of Primorski Krai | ( ) | 530.0 | April 21 |
= 8 | 7.0 | 27 | Japan, off the coast of Akita Prefecture, Honshu | ( ) | 10.0 | May 1 |
= 8 | 7.0 | 0 | Mexico, Gulf of California | ( ) | 10.0 | May 2 |
= 8 | 7.0 | 0 | Japan, off the east coast of Honshu | ( ) | 20.0 | October 10 |
- Note: At least 7.0 magnitude
Notable events
January
Strongest magnitude | 7.8 Mw 2 events |
---|---|
Deadliest | 7.8 Mw Chile 30,000 deaths |
Total fatalities | 30,005 |
Number by magnitude | |
8.0−8.9 | 0 |
7.0−7.9 | 2 |
6.0−6.9 | 5 |
5.0−5.9 | 1 |
Date | Country and location | Mw | Depth (km) | MMI | Notes | Casualties | |
---|---|---|---|---|---|---|---|
Dead | Injured | ||||||
2[1] | Turkey, south of | 5.3 | 0.0 | Major damage was reported. Depth unknown. | |||
18[2] | Chile, Coquimbo Region | 6.2 | 70.0 | ||||
20[3] | Guatemala, off the south coast of | 6.5 | 70.0 | ||||
22[4] | Papua New Guinea, off the east coast of | 6.2 | 35.0 | ||||
24[5] | Argentina, Santiago del Estero Province | 6.0 | 580.0 | ||||
25[6][7] | Chile, Bio-Bio Region | 7.8 | 35.0 | X | The 1939 Chillan earthquake was one of the worst in Chilean history. 30,000 people were killed. Many homes were destroyed and damage costs were around $920 million (1939 rate). | 30,000+ | |
30[8][9] | Papua New Guinea, south of Bougainville Island | 7.8 | 35.0 | 5 people were killed and at least 101 were injured. Many homes were destroyed. | 5 | 101+ | |
30[10] | Papua New Guinea, off the east coast of | 6.5 | 200.0 |
February
Strongest magnitude | 7.0 Mw Solomon Islands |
---|---|
Total fatalities | 0 |
Number by magnitude | |
8.0−8.9 | 0 |
7.0−7.9 | 1 |
6.0−6.9 | 3 |
Date | Country and location | Mw | Depth (km) | MMI | Notes | Casualties | |
---|---|---|---|---|---|---|---|
Dead | Injured | ||||||
3[11] | Solomon Islands | 7.0 | 15.0 | ||||
4[12] | Philippines, east of Mindanao | 6.0 | 100.0 | ||||
16[13] | Japan, off the east coast of Honshu | 6.6 | 35.0 | ||||
24[14][15] | United States, south of Alaska Peninsula | 6.3 | 79.0 | V |
March
Strongest magnitude | 7.5 Mw south Indian Ocean |
---|---|
Deadliest | 6.7 Mw Japan 1 death |
Total fatalities | 1 |
Number by magnitude | |
8.0−8.9 | 0 |
7.0−7.9 | 1 |
6.0−6.9 | 3 |
Date | Country and location | Mw | Depth (km) | MMI | Notes | Casualties | |
---|---|---|---|---|---|---|---|
Dead | Injured | ||||||
2[16] | Papua New Guinea, East Sepik Province | 6.0 | 35.0 | ||||
8[17] | Papua New Guinea, off the west coast of Bougainville Island | 6.3 | 35.0 | ||||
20[18][19] | Japan, eastern Kyushu | 6.7 | 25.0 | A tsunami was generated. 1 person died and a home was destroyed. | 1 | ||
21[20] | south Indian Ocean | 7.5 | 15.0 |
April
Strongest magnitude | 7.8 Mw Solomon Islands |
---|---|
Deadliest | 7.8 Mw Solomon Islands 12 deaths |
Total fatalities | 12 |
Number by magnitude | |
8.0−8.9 | 0 |
7.0−7.9 | 4 |
6.0−6.9 | 2 |
Date | Country and location | Mw | Depth (km) | MMI | Notes | Casualties | |
---|---|---|---|---|---|---|---|
Dead | Injured | ||||||
5[21] | Vanuatu | 7.0 | 30.0 | ||||
18[22] | Chile, Atacama Region | 7.4 | 35.0 | ||||
20[23] | New Zealand, off the south coast of South Island | 6.0 | 35.0 | ||||
21[24] | Russia, Primorski Krai | 7.0 | 530.0 | ||||
25[25] | Peru, Junin Region | 6.2 | 150.0 | ||||
30[26][27][28] | Solomon Islands | 7.8 | 15.0 | A tsunami resulted in 12 deaths and some damage. The earthquake also caused the destruction of some homes. | 12 |
May
Strongest magnitude | 7.0 Mw 2 events |
---|---|
Deadliest | 7.0 Mw Japan 27 deaths |
Total fatalities | 27 |
Number by magnitude | |
8.0−8.9 | 0 |
7.0−7.9 | 2 |
6.0−6.9 | 9 |
Date | Country and location | Mw | Depth (km) | MMI | Notes | Casualties | |
---|---|---|---|---|---|---|---|
Dead | Injured | ||||||
1[29][30] | Japan, off the coast of Akita Prefecture, Honshu | 7.0 | 10.0 | 27 deaths were caused as well as 52 injuries. 479 homes were destroyed. | 27 | 52 | |
1[31] | Japan, off the coast of Akita Prefecture, Honshu | 6.5 | 10.0 | Aftershock. | |||
2[32] | Mexico, Gulf of California | 7.0 | 10.0 | ||||
6[33][34] | Philippines, north of Mindoro | 6.5 | 110.0 | V | |||
8[35][36] | Portugal, east of the Azores | 6.7 | 10.0 | X | |||
17[37] | Japan, Volcano Islands | 6.5 | 35.0 | ||||
19[38] | Bolivia, Oruro Department | 6.2 | 100.0 | ||||
22[39] | Indonesia, Papua New Guinea, border region | 6.2 | 35.0 | ||||
26[40] | Russia, Buryatia | 6.0 | 35.0 | ||||
26[41] | Indonesia, Papua (province) | 6.3 | 25.0 | ||||
27[42] | India, Manipur | 6.1 | 65.7 |
June
Strongest magnitude | 7.2 Mw Tonga |
---|---|
Deadliest | 0.0 Mw Peru 37 deaths |
Total fatalities | 59 |
Number by magnitude | |
8.0−8.9 | 0 |
7.0−7.9 | 1 |
6.0−6.9 | 7 |
Date | Country and location | Mw | Depth (km) | MMI | Notes | Casualties | |
---|---|---|---|---|---|---|---|
Dead | Injured | ||||||
2[43] | Indonesia, Talaud Islands | 6.5 | 35.0 | ||||
4[44] | Indonesia, Savu Sea | 6.2 | 80.0 | ||||
8[45] | Tonga | 7.2 | 100.0 | ||||
9[46] | Indonesia, Papua (province) | 6.3 | 15.0 | ||||
13[47] | Indonesia, Molucca Sea | 6.7 | 150.0 | ||||
18[48] | Costa Rica, off the east coast of | 6.5 | 70.0 | ||||
22[49][50] | Ghana, Central Region (Ghana) | 6.4 | 15.0 | IX | This was a rare event for the area. 22 people were killed and 130 were hurt. 1,500 homes were destroyed. | 22 | 130 |
22[51] | Peru, Madre de Dios Region | 0.0 | 0.0 | 37 deaths were caused as well as some damage. The magnitude and depth were unknown. | |||
27[52] | Philippines, east of Mindanao | 6.6 | 35.0 |
July
Strongest magnitude | 6.8 Mw Fiji |
---|---|
Total fatalities | 0 |
Number by magnitude | |
8.0−8.9 | 0 |
7.0−7.9 | 0 |
6.0−6.9 | 5 |
Date | Country and location | Mw | Depth (km) | MMI | Notes | Casualties | |
---|---|---|---|---|---|---|---|
Dead | Injured | ||||||
4[53] | Bolivia, Chuquisaca Department | 6.6 | 275.0 | ||||
5[54] | Fiji | 6.7 | 650.0 | ||||
12[55] | Indonesia, Papua (province) | 6.5 | 20.0 | ||||
14[56] | Russia, Commander Islands | 6.5 | 60.0 | ||||
20[57] | Fiji | 6.8 | 635.0 |
August
Strongest magnitude | 7.2 Mw Vanuatu |
---|---|
Total fatalities | 0 |
Number by magnitude | |
8.0−8.9 | 0 |
7.0−7.9 | 1 |
6.0−6.9 | 5 |
Date | Country and location | Mw | Depth (km) | MMI | Notes | Casualties | |
---|---|---|---|---|---|---|---|
Dead | Injured | ||||||
1[58] | Russia, Kuril Islands | 6.5 | 140.0 | ||||
12[59] | Vanuatu | 7.2 | 180.0 | ||||
18[60] | Vanuatu | 6.5 | 55.0 | ||||
20[61][62] | United States, Unimak Island, Alaska | 6.3 | 75.0 | V | |||
25[63] | Papua New Guinea, southeast of New Ireland (island) | 6.6 | 90.0 | ||||
27[64] | Vanuatu | 6.5 | 280.0 |
September
Strongest magnitude | 7.1 Mw United States |
---|---|
Deadliest | 6.3 Mw Turkey 41 deaths |
Total fatalities | 43 |
Number by magnitude | |
8.0−8.9 | 0 |
7.0−7.9 | 1 |
6.0−6.9 | 4 |
5.0−5.9 | 1 |
Date | Country and location | Mw | Depth (km) | MMI | Notes | Casualties | |
---|---|---|---|---|---|---|---|
Dead | Injured | ||||||
8[65] | United States, Near Islands, Alaska | 7.1 | 15.0 | ||||
19[66] | China, Yunnan Province | 5.5 | 0.0 | VII | 2 people died and some homes collapsed. The depth was unknown. | 2 | |
20[67] | Greece, Ionian Sea | 6.5 | 80.0 | ||||
20[68] | Peru, Junin Region | 6.0 | 60.0 | ||||
22[69][70] | Turkey, Izmir Province | 6.3 | 35.0 | IX | 41 people were killed and some damage was caused. | 41 | |
28[71] | Guatemala, Huehuetenango Department | 6.2 | 110.0 |
October
Strongest magnitude | 7.4 Mw Vanuatu |
---|---|
Total fatalities | 0 |
Number by magnitude | |
8.0−8.9 | 0 |
7.0−7.9 | 2 |
6.0−6.9 | 6 |
Date | Country and location | Mw | Depth (km) | MMI | Notes | Casualties | |
---|---|---|---|---|---|---|---|
Dead | Injured | ||||||
5[72] | Bolivia, Potosi Department | 6.0 | 240.0 | ||||
7[73] | Indonesia, Banda Sea | 6.5 | 35.0 | ||||
7[74] | Chile, Arica y Parinacota Region | 6.0 | 110.0 | ||||
10[75] | Japan, off the east coast of Honshu | 7.0 | 20.0 | ||||
11[76] | Peru, Arequipa Region | 0.0 | 120.0 | VII | Many homes were destroyed. The magnitude was unknown. | ||
17[77] | Vanuatu | 7.4 | 135.0 | ||||
20[78] | Costa Rica, off the south coast of | 6.0 | 35.0 | ||||
22[79] | Japan, southeast of Hokkaido | 6.0 | 90.0 | ||||
30[80] | Tonga | 6.5 | 150.0 |
November
Strongest magnitude | 6.7 Mw Afghanistan |
---|---|
Deadliest | 5.9 Mw Turkey 13 deaths |
Total fatalities | 13 |
Number by magnitude | |
8.0−8.9 | 0 |
7.0−7.9 | 0 |
6.0−6.9 | 5 |
5.0−5.9 | 1 |
Date | Country and location | Mw | Depth (km) | MMI | Notes | Casualties | |
---|---|---|---|---|---|---|---|
Dead | Injured | ||||||
4[81] | Iran, Khuzestan Province | 6.0 | 35.0 | ||||
10[82] | Papua New Guinea, Oro Province | 6.2 | 35.0 | ||||
17[83] | Papua New Guinea, southwest of Bougainville Island | 6.0 | 140.0 | ||||
18[84] | Russia, Kamchatka Peninsula | 6.5 | 75.0 | ||||
21[85] | Turkey, Erzincan Province | 5.9 | 80.0 | VII | 13 people were killed and some damage was caused. | 13 | |
21[86][87] | Afghanistan, Badakhshan Province | 6.7 | 190.0 | Some damage was caused. |
December
Strongest magnitude | 8.1 Mw Indonesia |
---|---|
Deadliest | 7.8 Mw Turkey 32,700 deaths |
Total fatalities | 32,700 |
Number by magnitude | |
8.0−8.9 | 1 |
7.0−7.9 | 2 |
6.0−6.9 | 7 |
Date | Country and location | Mw | Depth (km) | MMI | Notes | Casualties | |
---|---|---|---|---|---|---|---|
Dead | Injured | ||||||
5[88] | Guatemala, Retalhuleu Department | 6.7 | 45.0 | ||||
16[89] | Russia, Kuril Islands | 6.5 | 60.0 | ||||
20[90] | Indonesia, Flores Sea | 6.0 | 700.0 | ||||
21[91] | Costa Rica, Alajuela Province | 7.3 | 25.0 | ||||
21[92][93] | Indonesia, Gulf of Tomini | 8.1 | 35.0 | Many homes were destroyed. | |||
22[94] | Costa Rica, off the west coast of | 6.8 | 25.0 | ||||
25[95] | Indonesia, Gulf of Tomini | 6.2 | 125.0 | Aftershock. | |||
26[96] | El Salvador, Usulutan Department | 6.0 | 75.0 | ||||
26[97][98][99] | Turkey, Erzincan Province | 7.8 | 20.0 | XII | The 1939 Erzincan earthquake caused major destruction in the area. 32,700 people were killed. Damage costs were $20 million (1939 rate). Scores of homes were ruined. | 32,700 | |
27[100] | Indonesia, off the north coast of Papua (province) | 6.5 | 80.0 |
References
- "Significant Earthquake: TURKEY". National Geophysical Data Center. January 2, 1939. Retrieved May 26, 2016.
- "On-Line Bulletin". International Seismological Centre. January 18, 1939. Retrieved May 26, 2016.
- "On-Line Bulletin". International Seismological Centre. January 20, 1939. Retrieved May 26, 2016.
- "On-Line Bulletin". International Seismological Centre. January 22, 1939. Retrieved May 26, 2016.
- "On-Line Bulletin". International Seismological Centre. January 24, 1939. Retrieved May 26, 2016.
- "M 7.8 - Bio-Bio, Chile". United States Geological Survey. January 25, 1939. Retrieved May 26, 2016.
- "Significant Earthquake: CHILE: CHILLAN". National Geophysical Data Center. January 25, 1939. Retrieved May 26, 2016.
- "M 7.8 - Solomon Islands". United States Geological Survey. January 30, 1939. Retrieved May 26, 2016.
- "Significant Earthquake: PAPUA NEW GUINEA: BOUGAINVILLE ISLAND". National Geophysical Data Center. January 30, 1939. Retrieved May 26, 2016.
- "On-Line Bulletin". International Seismological Centre. January 30, 1939. Retrieved May 26, 2016.
- "M 7.0 - Solomon Islands". United States Geological Survey. February 3, 1939. Retrieved May 26, 2016.
- "On-Line Bulletin". International Seismological Centre. February 4, 1939. Retrieved May 26, 2016.
- "M 6.6 - off the east coast of Honshu, Japan". United States Geological Survey. February 16, 1939. Retrieved May 26, 2016.
- "M 6.3 - Alaska Peninsula". United States Geological Survey. February 24, 1939. Retrieved October 26, 2019.
- "M 6.3 - Alaska Peninsula". United States Geological Survey. February 24, 1939. Retrieved October 26, 2019.
- "M 6.0 - New Guinea, Papua New Guinea". United States Geological Survey. March 2, 1939. Retrieved May 26, 2016.
- "M 6.3 - Bougainville region, Papua New Guinea". United States Geological Survey. March 8, 1939. Retrieved May 26, 2016.
- "M 6.7 - Kyushu, Japan". United States Geological Survey. March 20, 1939. Retrieved May 26, 2016.
- "Tsunami Event: SEIKAIDO". National Geophysical Data Center. March 20, 1939. Retrieved May 26, 2016.
- "M 7.5 - South Indian Ocean". United States Geological Survey. March 21, 1939. Retrieved May 26, 2016.
- "M 7.0 - Vanuatu". United States Geological Survey. April 5, 1939. Retrieved May 28, 2016.
- "M 7.4 - Atacama, Chile". United States Geological Survey. April 18, 1939. Retrieved May 28, 2016.
- "On-Line Bulletin". International Seismological Centre. April 20, 1939. Retrieved May 28, 2016.
- "M 7.0 - Primor'ye, Russia". United States Geological Survey. April 21, 1939. Retrieved May 28, 2016.
- "On-Line Bulletin". International Seismological Centre. April 25, 1939. Retrieved May 28, 2016.
- "M 7.8 - Solomon Islands". United States Geological Survey. April 30, 1939. Retrieved May 28, 2016.
- "Significant Earthquake: SOLOMON ISLANDS". National Geophysical Data Center. April 30, 1939. Retrieved May 28, 2016.
- "Tsunami Event: SOLOMON ISLANDS". National Geophysical Data Center. April 30, 1939. Retrieved May 28, 2016.
- "M 7.0 - near the west coast of Honshu, Japan". United States Geological Survey. May 1, 1939. Retrieved May 28, 2016.
- "Significant Earthquake: JAPAN: HONSHU: NW". National Geophysical Data Center. May 1, 1939. Retrieved May 28, 2016.
- "M 6.5 - near the west coast of Honshu, Japan". United States Geological Survey. May 1, 1939. Retrieved May 28, 2016.
- "M 7.0 - Baja California, Mexico". United States Geological Survey. May 2, 1939. Retrieved May 28, 2016.
- "On-Line Bulletin". International Seismological Centre. May 6, 1939. Retrieved May 28, 2016.
- "Significant Earthquake: PHILIPPINES: LUZON ISLAND, MINDOR ISLAND". National Geophysical Data Center. May 6, 1939. Retrieved October 26, 2019.
- "M 6.7 - Azores Islands region". United States Geological Survey. May 8, 1939. Retrieved May 28, 2016.
- "Significant Earthquake: AZORES: ATLANTIC". National Geophysical Data Center. May 8, 1939. Retrieved October 26, 2019.
- "M 6.5 - Volcano Islands, Japan region". United States Geological Survey. May 17, 1939. Retrieved May 28, 2016.
- "On-Line Bulletin". International Seismological Centre. May 19, 1939. Retrieved May 28, 2016.
- "On-Line Bulletin". International Seismological Centre. May 22, 1939. Retrieved May 28, 2016.
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- "M 6.3 - Papua, Indonesia". United States Geological Survey. May 26, 1939. Retrieved May 28, 2016.
- "M 6.1 - Myanmar-India border region". United States Geological Survey. May 27, 1939. Retrieved May 28, 2016.
- "M 6.5 - Kepulauan Talaud, Indonesia". United States Geological Survey. June 2, 1939. Retrieved May 28, 2016.
- "On-Line Bulletin". International Seismological Centre. June 4, 1939. Retrieved May 28, 2016.
- "On-Line Bulletin". International Seismological Centre. June 8, 1939. Retrieved May 28, 2016.
- "M 6.3 - near the south coast of Papua, Indonesia". United States Geological Survey. June 9, 1939. Retrieved May 28, 2016.
- "On-Line Bulletin". International Seismological Centre. June 13, 1939. Retrieved May 28, 2016.
- "On-Line Bulletin". International Seismological Centre. June 18, 1939. Retrieved May 28, 2016.
- "M 6.4 - Ghana". United States Geological Survey. June 22, 1939. Retrieved May 28, 2016.
- "Significant Earthquake: GHANA: ACCRA". National Geophysical Data Center. June 22, 1939. Retrieved May 28, 2016.
- "Significant Earthquake: PERU: POMACANCHI". National Geophysical Data Center. June 24, 1939. Retrieved May 28, 2016.
- "M 6.6 - Mindanao, Philippines". United States Geological Survey. June 27, 1939. Retrieved May 28, 2016.
- "On-Line Bulletin". International Seismological Centre. July 4, 1939. Retrieved May 28, 2016.
- "On-Line Bulletin". International Seismological Centre. July 5, 1939. Retrieved May 28, 2016.
- "M 6.5 - Papua, Indonesia". United States Geological Survey. July 12, 1939. Retrieved May 28, 2016.
- "On-Line Bulletin". International Seismological Centre. July 14, 1939. Retrieved May 28, 2016.
- "M 6.8 - Fiji region". United States Geological Survey. July 20, 1939. Retrieved May 28, 2016.
- "On-Line Bulletin". International Seismological Centre. August 1, 1939. Retrieved May 29, 2016.
- "On-Line Bulletin". International Seismological Centre. August 12, 1939. Retrieved May 29, 2016.
- "M 6.5 - Vanuatu". United States Geological Survey. August 18, 1939. Retrieved May 29, 2016.
- "M 6.3 - Unimak Island region, Alaska". United States Geological Survey. August 20, 1939. Retrieved October 27, 2019.
- "M 6.3 - Unimak Island region, Alaska". United States Geological Survey. August 20, 1939. Retrieved October 27, 2019.
- "On-Line Bulletin". International Seismological Centre. August 25, 1939. Retrieved May 29, 2016.
- "On-Line Bulletin". International Seismological Centre. August 27, 1939. Retrieved May 29, 2016.
- "M 7.1 - Near Islands, Aleutian Islands, Alaska". United States Geological Survey. September 8, 1939. Retrieved May 29, 2016.
- "Significant Earthquake: CHINA: YUNNAN PROVINCE". National Geophysical Data Center. September 19, 1939. Retrieved May 29, 2016.
- "On-Line Bulletin". International Seismological Centre. September 20, 1939. Retrieved May 29, 2016.
- "On-Line Bulletin". International Seismological Centre. September 20, 1939. Retrieved May 29, 2016.
- "M 6.3 - western Turkey". United States Geological Survey. September 22, 1939. Retrieved May 29, 2016.
- "Significant Earthquake: TURKEY". National Geophysical Data Center. September 22, 1939. Retrieved May 29, 2016.
- "On-Line Bulletin". International Seismological Centre. September 28, 1939. Retrieved May 29, 2016.
- "On-Line Bulletin". International Seismological Centre. October 5, 1939. Retrieved May 29, 2016.
- "On-Line Bulletin". International Seismological Centre. October 7, 1939. Retrieved May 29, 2016.
- "On-Line Bulletin". International Seismological Centre. October 7, 1939. Retrieved May 29, 2016.
- "M 7.0 - off the east coast of Honshu, Japan". United States Geological Survey. October 10, 1939. Retrieved May 29, 2016.
- "Significant Earthquake: PERU: CHUQUIBAMBA". National Geophysical Data Center. October 11, 1939. Retrieved May 29, 2016.
- "On-Line Bulletin". International Seismological Centre. October 17, 1939. Retrieved May 29, 2016.
- "On-Line Bulletin". International Seismological Centre. October 20, 1939. Retrieved May 29, 2016.
- "On-Line Bulletin". International Seismological Centre. October 22, 1939. Retrieved May 29, 2016.
- "On-Line Bulletin". International Seismological Centre. October 30, 1939. Retrieved May 29, 2016.
- "On-Line Bulletin". International Seismological Centre. November 4, 1939. Retrieved May 29, 2016.
- "On-Line Bulletin". International Seismological Centre. November 10, 1939. Retrieved May 29, 2016.
- "On-Line Bulletin". International Seismological Centre. November 17, 1939. Retrieved May 29, 2016.
- "On-Line Bulletin". International Seismological Centre. November 18, 1939. Retrieved May 29, 2016.
- "Significant Earthquake: TURKEY: ERZINCAN". National Geophysical Data Center. November 21, 1939. Retrieved May 29, 2016.
- "On-Line Bulletin". International Seismological Centre. November 21, 1939. Retrieved May 29, 2016.
- "Significant Earthquake: AFGHANISTAN". National Geophysical Data Center. November 21, 1939. Retrieved May 29, 2016.
- "M 6.7 - Guatemala". United States Geological Survey. December 5, 1939. Retrieved May 29, 2016.
- "M 6.5 - Kuril Islands". United States Geological Survey. December 16, 1939. Retrieved May 29, 2016.
- "On-Line Bulletin". International Seismological Centre. December 20, 1939. Retrieved May 29, 2016.
- "On-Line Bulletin". International Seismological Centre. December 21, 1939. Retrieved May 29, 2016.
- "M 8.1 - Sulawesi, Indonesia". United States Geological Survey. December 21, 1939. Retrieved May 29, 2016.
- "Significant Earthquake: INDONESIA: CENTRTAL SULAWESI: KALO,LUWUK,SULA I". National Geophysical Data Center. December 21, 1939. Retrieved May 29, 2016.
- "M 6.8 - Costa Rica". United States Geological Survey. December 22, 1939. Retrieved May 29, 2016.
- "On-Line Bulletin". International Seismological Centre. December 25, 1939. Retrieved May 29, 2016.
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- "M 7.8 - eastern Turkey". United States Geological Survey. December 26, 1939. Retrieved May 29, 2016.
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