List of earthquakes in 1931

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Earthquakes in 1931
List of earthquakes in 1931 is located in Earth
List of earthquakes in 1931
List of earthquakes in 1931
List of earthquakes in 1931
List of earthquakes in 1931
List of earthquakes in 1931
List of earthquakes in 1931
List of earthquakes in 1931
List of earthquakes in 1931
List of earthquakes in 1931
List of earthquakes in 1931
List of earthquakes in 1931
List of earthquakes in 1931
List of earthquakes in 1931
List of earthquakes in 1931
List of earthquakes in 1931
List of earthquakes in 1931
List of earthquakes in 1931
List of earthquakes in 1931
List of earthquakes in 1931
List of earthquakes in 1931
List of earthquakes in 1931
List of earthquakes in 1931
List of earthquakes in 1931
List of earthquakes in 1931
List of earthquakes in 1931
List of earthquakes in 1931
List of earthquakes in 1931
List of earthquakes in 1931
List of earthquakes in 1931
List of earthquakes in 1931
List of earthquakes in 1931
List of earthquakes in 1931
List of earthquakes in 1931
List of earthquakes in 1931
List of earthquakes in 1931
List of earthquakes in 1931
List of earthquakes in 1931
List of earthquakes in 1931
List of earthquakes in 1931
List of earthquakes in 1931
List of earthquakes in 1931
List of earthquakes in 1931
List of earthquakes in 1931
List of earthquakes in 1931
List of earthquakes in 1931
List of earthquakes in 1931
List of earthquakes in 1931
List of earthquakes in 1931
List of earthquakes in 1931
List of earthquakes in 1931
List of earthquakes in 1931
List of earthquakes in 1931
List of earthquakes in 1931
List of earthquakes in 1931
List of earthquakes in 1931
List of earthquakes in 1931
List of earthquakes in 1931
List of earthquakes in 1931
List of earthquakes in 1931
List of earthquakes in 1931
List of earthquakes in 1931
List of earthquakes in 1931
List of earthquakes in 1931
List of earthquakes in 1931
List of earthquakes in 1931
List of earthquakes in 1931
List of earthquakes in 1931
List of earthquakes in 1931
List of earthquakes in 1931
List of earthquakes in 1931
List of earthquakes in 1931
List of earthquakes in 1931
List of earthquakes in 1931
List of earthquakes in 1931
List of earthquakes in 1931
List of earthquakes in 1931
List of earthquakes in 1931
List of earthquakes in 1931
List of earthquakes in 1931
List of earthquakes in 1931
List of earthquakes in 1931
List of earthquakes in 1931
List of earthquakes in 1931
List of earthquakes in 1931
List of earthquakes in 1931
List of earthquakes in 1931
List of earthquakes in 1931
List of earthquakes in 1931
List of earthquakes in 1931
List of earthquakes in 1931
List of earthquakes in 1931
List of earthquakes in 1931
List of earthquakes in 1931
List of earthquakes in 1931
List of earthquakes in 1931
List of earthquakes in 1931
List of earthquakes in 1931
List of earthquakes in 1931
List of earthquakes in 1931
List of earthquakes in 1931
List of earthquakes in 1931
List of earthquakes in 1931
List of earthquakes in 1931
List of earthquakes in 1931
List of earthquakes in 1931
List of earthquakes in 1931
List of earthquakes in 1931
List of earthquakes in 1931
List of earthquakes in 1931
List of earthquakes in 1931
List of earthquakes in 1931
List of earthquakes in 1931
List of earthquakes in 1931
List of earthquakes in 1931
List of earthquakes in 1931
List of earthquakes in 1931
List of earthquakes in 1931
List of earthquakes in 1931
List of earthquakes in 1931
List of earthquakes in 1931
List of earthquakes in 1931
List of earthquakes in 1931
List of earthquakes in 1931
List of earthquakes in 1931
class=notpageimage|
Approximate epicenters of the earthquakes in 1931
Strongest magnitudeTwo events reached magnitude 7.9.
Deadliest China, Xinjiang Province (Magnitude 7.9) August 10 10,000 deaths
Total fatalities15,920
Number by magnitude
9.0+0
8.0−8.90
7.0−7.923
6.0−6.998
5.0−5.93
← 1930
1932 →

This is a list of earthquakes in 1931. Only magnitude 6.0 or greater earthquakes appear on the list. Lower magnitude events are included if they have caused deaths, 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. In a stark contrast to 1930, many large and destructive earthquakes occurred during 1931. The largest and deadliest event was the magnitude 7.9 earthquake which caused major devastation to China in August. New Zealand saw its worst natural disaster in February. Iran and Nicaragua had many deaths from earthquakes in the first half of the year. Other interesting events happened in Texas and the United Kingdom with the largest quakes for these areas hitting this year.

Overall[]

By death toll[]

Rank Death toll Magnitude Location MMI Depth (km) Date
1 10,000 7.9  China, Xinjiang Province XI (Extreme) 10.0 August 10
2 2,890 6.5  Azerbaijan, Nakhchivan Autonomous Republic VIII (Severe) 15.0 April 27
3 2,450 5.6  Nicaragua, Managua City ( ) 0.0 March 31
4 256 7.4  New Zealand, Hawke's Bay, North Island IX (Violent) 35.0 February 2
5 114 7.6  Mexico, Oaxaca X (Extreme) 35.0 January 15
6 90 5.8  Albania, Korçë County IX (Violent) 33.0 January 28
7 50 7.9  Solomon Islands ( ) 15.0 October 3
8 16 6.5  Japan, Saitama Prefecture, Honshu ( ) 15.0 September 21
  • Note: At least 10 casualties

By magnitude[]

Rank Magnitude Death toll Location MMI Depth (km) Date
= 1 7.9 10,000  China, Xinjiang Province XI (Extreme) 10.0 August 10
= 1 7.9 50  Solomon Islands ( ) 15.0 October 3
2 7.8 0  Japan, off the east coast of Honshu ( ) 35.0 March 9
3 7.7 0  Solomon Islands ( ) 15.0 October 10
= 4 7.6 114  Mexico, Oaxaca X (Extreme) 35.0 January 15
= 4 7.6 0  Myanmar, Kachin State ( ) 15.0 January 27
5 7.5 1  Japan, east of Kyushu ( ) 35.0 November 2
= 6 7.4 256  New Zealand, Hawke's Bay, North Island IX (Violent) 35.0 February 2
= 6 7.4 0  Russia, Primorsky Krai ( ) 356.7 February 20
= 6 7.4 0  Indonesia, Enggano Island VIII (Severe) 35.0 September 25
= 7 7.3 0  New Zealand, Manawatū-Whanganui ( ) 45.0 February 13
= 7 7.3 0  Indonesia, Banda Sea ( ) 100.0 March 28
= 8 7.2 0  United States, south of Guam ( ) 15.0 January 28
= 8 7.2 0  Chile, Valparaiso Region ( ) 35.0 March 18
= 8 7.2 0  Pakistan, Baluchistan Province ( ) 10.0 August 27
= 9 7.1 0 north Atlantic Ocean ( ) 10.0 May 20
= 9 7.1 0  China, Xinjiang Province ( ) 10.0 August 18
= 9 7.1 0  United States, Northern Mariana Islands ( ) 167.8 September 9
= 10 7.0 0  Indonesia, east of Enggano Island ( ) 35.0 February 10
= 10 7.0 0  Papua New Guinea, Sandaun Province ( ) 35.0 August 7
= 10 7.0 0  Solomon Islands ( ) 15.0 October 3
= 10 7.0 0  Solomon Islands ( ) 15.0 October 3
= 10 7.0 0  Solomon Islands, south of ( ) 15.0 October 3
  • Note: At least 7.0 magnitude

Notable events[]

January[]

January
Strongest magnitude7.6 Mw 2 events
Deadliest7.6 Mw  Mexico
114 deaths
Total fatalities204
Number by magnitude
8.0−8.90
7.0−7.93
6.0−6.913
5.0−5.91
Date Country and location Mw Depth (km) MMI Notes Casualties
Dead Injured

1[1]  Taiwan, east of 6.4 15.0
2[2]  Mexico, off the coast of Jalisco 6.7 20.0
9[3]  Japan, Akita Prefecture, Honshu 6.0 140.0
12[4]  Russia, off the east coast of Kamchatka 6.5 35.0
15[5][6]  Mexico, Oaxaca 7.6 35.0 X The 1931 Oaxaca earthquake killing 114 people causing severe damage. 114
15[7]  Japan, northwest of the Ryukyu Islands 6.8 200.0
15[8]  Papua New Guinea, Ninigo Islands 6.5 15.0
16[9]  Mexico, Oaxaca 6.3 30.0 Aftershock.
17[10]  Mexico, Gulf of California 6.7 10.0
19[11]  Indonesia, north of Wetar 6.0 35.0
20[12]  Afghanistan, Badakhshan Province 6.5 220.0
20[13]  Indonesia, Strait of Malacca 6.2 190.0
21[14]  Japan, off the southeast coast of Hokkaido 6.2 120.0
24[15]  Philippines, Siargao 6.2 35.0
27[16]  Myanmar, Kachin State 7.6 15.0 1931 Myitkyina earthquake.
28[17]  Albania, Korce County 5.8 33.0 IX 90 people were killed and some damage was caused. 90
28[18]  United States, south of Guam 7.2 15.0

February[]

February
Strongest magnitude7.4 Mw 2 events
Deadliest7.4 Mw  New Zealand
256 deaths
Total fatalities256
Number by magnitude
8.0−8.90
7.0−7.94
6.0−6.98
Date Country and location Mw Depth (km) MMI Notes Casualties
Dead Injured

2[19][20][21]  New Zealand, Hawke's Bay, North Island 7.4 35.0 IX The 1931 Hawke's Bay earthquake caused 256 deaths. 2 people were missing. Thousands of people were injured. Property damage costs were estimated at $900 million (2010 rates). This is currently the deadliest natural disaster to strike New Zealand as of 2019. Many aftershocks followed. 256 1,000+
8[22]  New Zealand, off the east coast of North Island 6.4 15.0 Aftershock.
10[23]  Indonesia, east of Enggano Island 7.0 35.0
12[24]  Indonesia, east of Enggano Island 6.4 35.0 Aftershock.
13[25]  Taiwan, north of 6.0 35.0
13[26]  New Zealand, Manawatū-Whanganui, North Island 7.3 45.0 Doublet earthquake with previous event on February 2.
14[27]  Indonesia, southern Sumatra 6.6 15.0 Aftershock.
16[28]  Japan, southern Hokkaido 6.3 25.0
19[29]  Indonesia, northeast of Enggano Island 6.5 35.0 Aftershock.
20[30]  Russia, Primorsky Krai 7.4 365.0
22[31]  Indonesia, Flores Sea 6.0 100.0
27[32]  Indonesia, Molucca Sea 6.5 35.0

March[]

March
Strongest magnitude7.8 Mw  Japan
Deadliest5.6 Mw  Nicaragua
2,450 deaths
Total fatalities2,450
Number by magnitude
8.0−8.90
7.0−7.93
6.0−6.911
5.0−5.91
Date Country and location Mw Depth (km) MMI Notes Casualties
Dead Injured

1[33]  Russia, south of Sakhalin 6.5 330.0
2[34]  France, southeast of the Loyalty Islands, New Caledonia 6.7 70.0
5[35]  Indonesia, north of Simeulue 6.0 35.0
7[36]  Greece, Central Macedonia 6.0 35.0
7[37]  Nicaragua, Lake Nicaragua 6.0 80.0
8[38][39]  North Macedonia, Southeastern Statistical Region 6.6 10.0 X
9[40]  Japan, off the east coast of Honshu 7.8 35.0
11[41]  Indonesia, Banda Sea 6.0 35.0
11[42]  Japan, Volcano Islands 6.7 35.0
18[43]  Chile, Valparaiso Region 7.2 35.0
18[44]  Philippines, south of Mindanao 6.7 35.0
19[45][46]  Philippines, off the west coast of Luzon 6.7 15.0 IX Some damage was reported.
28[47]  Indonesia, Banda Sea 7.3 100.0
29[48]  Japan, Hokkaido 6.8 80.0
31[49]  Nicaragua, Jinotega Department 5.6 0.0 The 1931 Nicaragua earthquake caused major destruction in the area. 2,450 deaths were reported. Property damage costs were $15 million (1931 rate). 2,450

April[]

April
Strongest magnitude6.8 Mw  Fiji
Deadliest6.5 Mw  Azerbaijan
2,890 deaths
Total fatalities2,890
Number by magnitude
8.0−8.90
7.0−7.90
6.0−6.99
Date Country and location Mw Depth (km) MMI Notes Casualties
Dead Injured

2[50]  Indonesia, Banda Sea 6.0 130.0
3[51]  Peru, off the north coast 6.2 35.0
3[52]  Argentina, Tucuman Province 6.2 180.0
3[53]  Fiji, south of 6.8 630.0
6[54]  Papua New Guinea, southwest of Bougainville Island 6.5 35.0
8[55]  Indonesia, Papua (province) 6.0 35.0
9[56]  Russia, southern Kuril Islands 6.2 35.0
24[57]  Papua New Guinea, southwest of Bougainville Island 6.7 15.0
27[58][59]  Azerbaijan, Nakhchivan Autonomous Republic 6.5 15.0 VIII The 1931 Zangezur earthquake caused major damage. 2,890 deaths were reported. 2,890

May[]

May
Strongest magnitude7.1 Mw north Atlantic Ocean
Total fatalities0
Number by magnitude
8.0−8.90
7.0−7.91
6.0−6.96
Date Country and location Mw Depth (km) MMI Notes Casualties
Dead Injured

1[60]  Venezuela, Barinas (state) 6.2 35.0
12[61]  Russia, Kamchatka Krai 6.5 50.0
16[62]  Mexico, Oaxaca 6.2 35.0
20[63] north Atlantic Ocean 7.1 10.0
20[64]  Chile, off the coast of Atacama Region 6.2 35.0
24[65]  Philippines, Dinagat Islands 6.2 35.0
28[66]  Chile, off the coast of Tarapaca Region 6.5 120.0

June[]

June
Strongest magnitude6.5 Mw 4 events
Total fatalities0
Number by magnitude
8.0−8.90
7.0−7.90
6.0−6.911
Date Country and location Mw Depth (km) MMI Notes Casualties
Dead Injured

1[67]  Papua New Guinea, East New Britain Province 6.2 35.0
2[68]  Japan, Gifu Prefecture, Honshu 6.5 260.0
4[69]  Indonesia, Banda Sea 6.5 150.0
7[70][71]  United Kingdom, off the east coast of England 6.1 23.0 VIII The 1931 Dogger Bank earthquake was one of the strongest recorded in the United Kingdom. Some damage was reported.
9[72]  Japan, off the east coast of Honshu 6.0 35.0
15[73]  Peru, Ica Region 6.0 35.0
17[74]  Japan, Tokyo, Honshu 6.0 35.0
17[75]  Papua New Guinea, Morobe Province 6.5 140.0
23[76]  Japan, off the east coast of Honshu 6.4 25.0
29[77]  Japan, off the south coast of Honshu 6.5 380.0
29[78]  Chile, Coquimbo Region 6.0 35.0

July[]

July
Strongest magnitude6.8 Mw 2 events
Total fatalities0
Number by magnitude
8.0−8.90
7.0−7.90
6.0−6.99
Date Country and location Mw Depth (km) MMI Notes Casualties
Dead Injured

11[79]  Peru, Ucayali Region 6.2 120.0
12[80]  Philippines, northeast of Ticao Island 6.5 15.0
15[81]  Russia, Sea of Okhotsk 6.2 35.0
17[82]  Mexico, Oaxaca 6.2 35.0
18[83]  Chile, Antofagasta Region 6.8 110.0
18[84]  Russia, off the east coast of Kamchatka 6.3 15.0
20[85]  Samoa 6.5 80.0
21[86]  Vanuatu 6.2 55.0
23[87]  Papua New Guinea, southern Bougainville Island 6.8 400.0

August[]

August
Strongest magnitude7.9 Mw  China
Deadliest7.9 Mw  China
10,000 deaths
Total fatalities10,000
Number by magnitude
8.0−8.90
7.0−7.94
6.0−6.95
Date Country and location Mw Depth (km) MMI Notes Casualties
Dead Injured

2[88]  Russia, Sea of Okhotsk 6.5 400.0
6[89]  Russia, Buryatia 6.0 35.0
7[90]  Papua New Guinea, Sandaun Province 7.0 35.0
10[91][92]  China, Xinjiang Province 7.9 10.0 XI 10,000 people died in the 1931 Fuyun earthquake. Countless homes were destroyed in the area. 10,000
15[93]  Afghanistan, Badakhshan Province 6.0 240.0
16[94]  United States, southwestern Texas 6.5 10.0 The 1931 Valentine earthquake was the largest in Texas history.
18[95]  China, Xinjiang Province 7.1 10.0 Aftershock.
24[96]  Pakistan, Balochistan, Pakistan 6.8 10.0 Foreshock.
27[97][98]  Pakistan, Balochistan, Pakistan 7.2 10.0 Major damage was caused.

September[]

September
Strongest magnitude7.4 Mw  Indonesia
Deadliest6.5 Mw  Japan
16 deaths
Total fatalities16
Number by magnitude
8.0−8.90
7.0−7.92
6.0−6.910
Date Country and location Mw Depth (km) MMI Notes Casualties
Dead Injured

8[99]  Japan, off the east coast of Honshu 6.2 35.0
9[100]  United States, Northern Mariana Islands 7.1 167.5
12[101]  Russia, Kamchatka Peninsula 6.0 35.0
12[102]  Colombia, off the west coast 6.2 35.0
16[103]  Japan, Yamanashi Prefecture, Honshu 6.0 35.0
21[104][105]  Japan, Saitama Prefecture, Honshu 6.5 15.0 16 people were killed and some damage was reported. 16
21[106] South China Sea 6.7 25.0
21[107]  New Zealand, Gisborne Region, North Island 6.8 90.0
25[108][109]  Indonesia, Enggano Island 7.4 35.0 VIII Some damage was caused by the 1931 Southwest Sumatra earthquake.
25[110]  Indonesia, northeast of Enggano Island 6.0 35.0 Aftershock.
26[111]  Guatemala, San Marcos Department 6.0 60.0
29[112]  Indonesia, Molucca Sea 6.0 35.0

October[]

October
Strongest magnitude7.9 Mw  Solomon Islands
Deadliest7.9 Mw  Solomon Islands
50 deaths
Total fatalities50
Number by magnitude
8.0−8.90
7.0−7.95
6.0−6.910
Date Country and location Mw Depth (km) MMI Notes Casualties
Dead Injured

1[113]  Mexico, Gulf of California 6.0 35.0
3[114][115][116]  Solomon Islands 7.9 15.0 The earthquake caused some damage however a destructive tsunami was triggered. The waves resulted in 50 deaths and many homes being destroyed. Several strong aftershocks followed. 50
3[117]  Solomon Islands, south of 7.0 15.0 Aftershock.
3[118]  Solomon Islands 7.0 15.0 Aftershock.
3[119]  Solomon Islands 7.0 15.0 Aftershock.
5[120]  Afghanistan, Badakhshan Province 6.8 200.0
10[121]  Solomon Islands 7.7 15.0 This was to the north of the October 3 event.
10[122]  Solomon Islands 6.8 35.0 Aftershock.
10[123]  Solomon Islands 6.8 15.0 Aftershock.
10[124]  Solomon Islands 6.8 15.0 Aftershock.
10[125]  Russia, far northern Sea of Okhotsk 6.4 35.0
12[126]  Panama, off the south coast 6.0 35.0
18[127]  Fiji, south of 6.8 485.0
28[128]  Philippines, north of Luzon 6.2 25.0
29[129]  United States, Northern Mariana Islands 6.5 520.0

November[]

November
Strongest magnitude7.5 Mw  Japan
Deadliest7.5 Mw  Japan
1 death
Total fatalities1
Number by magnitude
8.0−8.90
7.0−7.91
6.0−6.96
Date Country and location Mw Depth (km) MMI Notes Casualties
Dead Injured

1[130]  Japan, east of Kyushu 6.5 35.0 Foreshock.
2[131]  Mexico, Oaxaca 6.6 35.0
2[132][133]  Japan, east of Kyushu 7.5 35.0 1 person died and 14 homes were destroyed. 1
2[134]  Papua New Guinea, Gulf Province 6.5 15.0
3[135]  Japan, Iwate Prefecture, Honshu 6.0 35.0
5[136]  China, Xinjiang Province 6.4 10.0
20[137]  Solomon Islands, Makira 6.7 15.0

References[]

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  57. ^ "M 6.7 - Bougainville region, Papua New Guinea". United States Geological Survey. April 24, 1931. Retrieved March 31, 2016.
  58. ^ "M 6.5 - Naxcivan, Azerbaijan". United States Geological Survey. April 27, 1931. Retrieved March 31, 2016.
  59. ^ "Significant Earthquake: ARMENIA: ZANGEZUR, NAKHITCHEVAN". National Geophysical Data Center. April 27, 1931. Retrieved March 31, 2016.
  60. ^ "On-Line Bulletin". International Seismological Centre. May 1, 1931. Retrieved April 1, 2016.
  61. ^ "On-Line Bulletin". International Seismological Centre. May 12, 1931. Retrieved April 1, 2016.
  62. ^ "On-Line Bulletin". International Seismological Centre. May 16, 1931. Retrieved April 1, 2016.
  63. ^ "M 7.1 - Azores-Cape St. Vincent Ridge". United States Geological Survey. May 20, 1931. Retrieved April 1, 2016.
  64. ^ "On-Line Bulletin". International Seismological Centre. May 20, 1931. Retrieved April 1, 2016.
  65. ^ "On-Line Bulletin". International Seismological Centre. May 24, 1931. Retrieved April 1, 2016.
  66. ^ "On-Line Bulletin". International Seismological Centre. May 28, 1931. Retrieved April 1, 2016.
  67. ^ "On-Line Bulletin". International Seismological Centre. June 1, 1931. Retrieved April 1, 2016.
  68. ^ "On-Line Bulletin". International Seismological Centre. June 2, 1931. Retrieved April 1, 2016.
  69. ^ "On-Line Bulletin". International Seismological Centre. June 4, 1931. Retrieved April 1, 2016.
  70. ^ "Significant Earthquake: UK: SCARBOROUGH, GRIMSBY". National Geophysical Data Center. June 7, 1931. Retrieved April 1, 2016.
  71. ^ "NORTH SEA". British Geological Survey. June 7, 1931. Retrieved April 19, 2019.
  72. ^ "On-Line Bulletin". International Seismological Centre. June 9, 1931. Retrieved April 1, 2016.
  73. ^ "On-Line Bulletin". International Seismological Centre. June 15, 1931. Retrieved April 1, 2016.
  74. ^ "On-Line Bulletin". International Seismological Centre. June 17, 1931. Retrieved April 1, 2016.
  75. ^ "On-Line Bulletin". International Seismological Centre. June 17, 1931. Retrieved April 1, 2016.
  76. ^ "M 6.4 - near the east coast of Honshu, Japan". United States Geological Survey. June 23, 1931. Retrieved April 1, 2016.
  77. ^ "On-Line Bulletin". International Seismological Centre. June 29, 1931. Retrieved April 1, 2016.
  78. ^ "On-Line Bulletin". International Seismological Centre. June 29, 1931. Retrieved April 1, 2016.
  79. ^ "On-Line Bulletin". International Seismological Centre. July 11, 1931. Retrieved April 2, 2016.
  80. ^ "M 6.5 - Masbate region, Philippines". United States Geological Survey. July 12, 1931. Retrieved April 2, 2016.
  81. ^ "On-Line Bulletin". International Seismological Centre. July 15, 1931. Retrieved April 2, 2016.
  82. ^ "On-Line Bulletin". International Seismological Centre. July 17, 1931. Retrieved April 2, 2016.
  83. ^ "On-Line Bulletin". International Seismological Centre. July 18, 1931. Retrieved April 2, 2016.
  84. ^ "M 6.3 - near the east coast of the Kamchatka Peninsula, Russia". United States Geological Survey. July 18, 1931. Retrieved April 2, 2016.
  85. ^ "On-Line Bulletin". International Seismological Centre. July 20, 1931. Retrieved April 2, 2016.
  86. ^ "M 6.2 - Vanuatu". United States Geological Survey. July 21, 1931. Retrieved April 20, 2019.
  87. ^ "On-Line Bulletin". International Seismological Centre. July 23, 1931. Retrieved April 2, 2016.
  88. ^ "On-Line Bulletin". International Seismological Centre. August 2, 1931. Retrieved April 2, 2016.
  89. ^ "On-Line Bulletin". International Seismological Centre. August 6, 1931. Retrieved April 2, 2016.
  90. ^ "M 7.0 - near the north coast of New Guinea, Papua New Guinea". United States Geological Survey. August 7, 1931. Retrieved April 2, 2016.
  91. ^ "M 7.9 - northern Xinjiang, China". United States Geological Survey. August 10, 1931. Retrieved April 2, 2016.
  92. ^ "Significant Earthquake: CHINA: XINJIANG WEIWUER ZIZHIQU PROVINCE: N". National Geophysical Data Center. August 10, 1931. Retrieved April 2, 2016.
  93. ^ "On-Line Bulletin". International Seismological Centre. August 15, 1931. Retrieved April 2, 2016.
  94. ^ "M 6.5 - Texas-Chihuahua border region". United States Geological Survey. August 16, 1931. Retrieved April 2, 2016.
  95. ^ "M 7.1 - northern Xinjiang, China". United States Geological Survey. August 18, 1931. Retrieved April 2, 2016.
  96. ^ "M 6.8 - Pakistan". United States Geological Survey. August 24, 1931. Retrieved April 2, 2016.
  97. ^ "M 7.2 - Pakistan". United States Geological Survey. August 27, 1931. Retrieved April 2, 2016.
  98. ^ "Significant Earthquake: PAKISTAN: MACH,BALUCHISTAN". National Geophysical Data Center. August 27, 1931. Retrieved April 2, 2016.
  99. ^ "On-Line Bulletin". International Seismological Centre. September 8, 1931. Retrieved April 3, 2016.
  100. ^ "On-Line Bulletin". International Seismological Centre. September 9, 1931. Retrieved April 3, 2016.
  101. ^ "On-Line Bulletin". International Seismological Centre. September 12, 1931. Retrieved April 3, 2016.
  102. ^ "On-Line Bulletin". International Seismological Centre. September 12, 1931. Retrieved April 3, 2016.
  103. ^ "On-Line Bulletin". International Seismological Centre. September 16, 1931. Retrieved April 3, 2016.
  104. ^ "M 6.5 - eastern Honshu, Japan". United States Geological Survey. September 21, 1931. Retrieved April 3, 2016.
  105. ^ "Significant Earthquake: JAPAN: HONSHU". National Geophysical Data Center. September 21, 1931. Retrieved April 3, 2016.
  106. ^ "M 6.7 - South China Sea". United States Geological Survey. September 21, 1931. Retrieved April 3, 2016.
  107. ^ "On-Line Bulletin". International Seismological Centre. September 21, 1931. Retrieved April 3, 2016.
  108. ^ "M 7.4 - southern Sumatra, Indonesia". United States Geological Survey. September 25, 1931. Retrieved April 3, 2016.
  109. ^ "Significant Earthquake: SW. SUMATRA". National Geophysical Data Center. September 25, 1931. Retrieved April 3, 2016.
  110. ^ "On-Line Bulletin". International Seismological Centre. September 25, 1931. Retrieved April 3, 2016.
  111. ^ "On-Line Bulletin". International Seismological Centre. September 26, 1931. Retrieved April 3, 2016.
  112. ^ "On-Line Bulletin". International Seismological Centre. September 29, 1931. Retrieved April 3, 2016.
  113. ^ "On-Line Bulletin". International Seismological Centre. October 1, 1931. Retrieved April 3, 2016.
  114. ^ "M 7.9 - Solomon Islands". United States Geological Survey. October 3, 1931. Retrieved April 3, 2016.
  115. ^ "Significant Earthquake: SOLOMON ISLANDS: SAN CRISTOBAL ISLAND". National Geophysical Data Center. October 3, 1931. Retrieved April 3, 2016.
  116. ^ "Tsunami Event: SAN CRISTOBAL ISLAND". National Geophysical Data Center. October 3, 1931. Retrieved April 3, 2016.
  117. ^ "M 7.0 - Solomon Islands". United States Geological Survey. October 3, 1931. Retrieved April 3, 2016.
  118. ^ "On-Line Bulletin". International Seismological Centre. October 3, 1931. Retrieved April 3, 2016.
  119. ^ "M 7.0 - Solomon Islands". United States Geological Survey. October 3, 1931. Retrieved April 3, 2016.
  120. ^ "On-Line Bulletin". International Seismological Centre. October 5, 1931. Retrieved April 3, 2016.
  121. ^ "M 7.7 - Solomon Islands". United States Geological Survey. October 10, 1931. Retrieved April 3, 2016.
  122. ^ "On-Line Bulletin". International Seismological Centre. October 10, 1931. Retrieved April 3, 2016.
  123. ^ "On-Line Bulletin". International Seismological Centre. October 10, 1931. Retrieved April 3, 2016.
  124. ^ "On-Line Bulletin". International Seismological Centre. October 10, 1931. Retrieved April 3, 2016.
  125. ^ "M 6.4 - Magadanskaya Oblast', Russia". United States Geological Survey. October 10, 1931. Retrieved April 3, 2016.
  126. ^ "On-Line Bulletin". International Seismological Centre. October 12, 1931. Retrieved April 3, 2016.
  127. ^ "On-Line Bulletin". International Seismological Centre. October 18, 1931. Retrieved April 3, 2016.
  128. ^ "M 6.2 - Luzon, Philippines". United States Geological Survey. October 28, 1931. Retrieved April 3, 2016.
  129. ^ "On-Line Bulletin". International Seismological Centre. October 29, 1931. Retrieved April 3, 2016.
  130. ^ "On-Line Bulletin". International Seismological Centre. November 1, 1931. Retrieved April 4, 2016.
  131. ^ "On-Line Bulletin". International Seismological Centre. November 2, 1931. Retrieved April 4, 2016.
  132. ^ "M 7.5 - southeast of Shikoku, Japan". United States Geological Survey. November 2, 1931. Retrieved April 4, 2016.
  133. ^ "Significant Earthquake: JAPAN: KYUSHU". National Geophysical Data Center. November 2, 1931. Retrieved April 4, 2016.
  134. ^ "M 6.5 - near the south coast of New Guinea, Papua New Guinea". United States Geological Survey. November 2, 1931. Retrieved April 4, 2016.
  135. ^ "On-Line Bulletin". International Seismological Centre. November 3, 1931. Retrieved April 4, 2016.
  136. ^ "M 6.4 - northern Xinjiang, China". United States Geological Survey. November 5, 1931. Retrieved April 4, 2016.
  137. ^ "M 6.7 - Solomon Islands". United States Geological Survey. November 20, 1931. Retrieved April 4, 2016.
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