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Earthquakes in 1928
List of earthquakes in 1928 is located in Earth
List of earthquakes in 1928
List of earthquakes in 1928
List of earthquakes in 1928
List of earthquakes in 1928
List of earthquakes in 1928
List of earthquakes in 1928
List of earthquakes in 1928
List of earthquakes in 1928
List of earthquakes in 1928
List of earthquakes in 1928
List of earthquakes in 1928
List of earthquakes in 1928
List of earthquakes in 1928
List of earthquakes in 1928
List of earthquakes in 1928
List of earthquakes in 1928
List of earthquakes in 1928
List of earthquakes in 1928
List of earthquakes in 1928
List of earthquakes in 1928
List of earthquakes in 1928
List of earthquakes in 1928
List of earthquakes in 1928
List of earthquakes in 1928
List of earthquakes in 1928
List of earthquakes in 1928
List of earthquakes in 1928
List of earthquakes in 1928
List of earthquakes in 1928
List of earthquakes in 1928
List of earthquakes in 1928
List of earthquakes in 1928
List of earthquakes in 1928
List of earthquakes in 1928
List of earthquakes in 1928
List of earthquakes in 1928
List of earthquakes in 1928
List of earthquakes in 1928
List of earthquakes in 1928
List of earthquakes in 1928
List of earthquakes in 1928
List of earthquakes in 1928
List of earthquakes in 1928
List of earthquakes in 1928
List of earthquakes in 1928
List of earthquakes in 1928
List of earthquakes in 1928
List of earthquakes in 1928
List of earthquakes in 1928
List of earthquakes in 1928
List of earthquakes in 1928
List of earthquakes in 1928
List of earthquakes in 1928
List of earthquakes in 1928
List of earthquakes in 1928
List of earthquakes in 1928
List of earthquakes in 1928
List of earthquakes in 1928
List of earthquakes in 1928
List of earthquakes in 1928
List of earthquakes in 1928
List of earthquakes in 1928
List of earthquakes in 1928
List of earthquakes in 1928
List of earthquakes in 1928
List of earthquakes in 1928
List of earthquakes in 1928
List of earthquakes in 1928
List of earthquakes in 1928
List of earthquakes in 1928
List of earthquakes in 1928
List of earthquakes in 1928
List of earthquakes in 1928
List of earthquakes in 1928
List of earthquakes in 1928
List of earthquakes in 1928
List of earthquakes in 1928
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Approximate epicenters of the earthquakes in 1928
Strongest magnitude  Mexico, Oaxaca, (Magnitude 8.0) June 17
Deadliest  Chile Maule Region, (Magnitude 7.7) December 1, 279 deaths
Total fatalities807
Number by magnitude
9.0+0
←  1927
1929 →

This is a list of earthquakes in 1928. 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. It was an active year with several events leading to deaths. Worst affected were Chile, Turkey, Bulgaria and the Philippines. Oaxaca, Mexico and Puno Region, Peru sustained several large earthquakes with the former seeing four reaching above magnitude 7.0. In spite of a series of earthquakes, only four deaths were caused in Mexico during the year.

Overall

By death toll

Rank Death toll Magnitude Location MMI Depth (km) Date
1 279 7.7   Chile, Maule Region IX (Violent) 35.0 December 1
2 170 6.4 Turkey, Izmir Province IX (Violent) 10.0 March 31
3 127 7.1   Bulgaria, Stara Zagora Province and Plovdiv Province XI (Extreme) 15.0 April 14, April 18
4 97 7.4   Philippines, Mindanao VII (Very strong) 25.0 December 19
5 51 6.0   Italy, off the west coast of Calabria ( ) 120.0 March 7
6 29 7.3   Peru, Amazonas Region X (Extreme) 120.0 May 14
7 20 6.0 Greece, Peloponnese (region) IX (Violent) 29.0 April 22
= 8 10 6.7   Peru, Puno Region IX (Violent) 25.0 April 9
= 8 10 5.4 Iran, North Khorasan Province VIII (Severe) 9.0 August 21
  • Note: At least 10 casualties

By magnitude

Rank Magnitude Death toll Location MMI Depth (km) Date
1 8.0 4   Mexico, Oaxaca ( ) 20.0 June 17
= 2 7.7 0 southern Indian Ocean ( ) 15.0 March 9
= 2 7.7 279   Chile, Maule Region IX (Violent) 35.0 December 1
= 3 7.6 0   France, southeast of the Loyalty Islands ( ) 10.0 March 16
= 3 7.6 0   Mexico, Oaxaca ( ) 15.0 March 22
4 7.5 0   Mexico, Oaxaca ( ) 25.0 October 9
5 7.4 97   Philippines, Mindanao VII (Very strong) 25.0 December 19
6 7.3 29   Peru, Amazonas Region X (Extreme) 120.0 May 14
7 7.2 0   Mexico, off the coast of Oaxaca ( ) 20.0 August 4
= 8 7.1 127   Bulgaria, Stara Zagora Province X (Extreme) 10.0 April 14
= 8 7.1 127   Bulgaria, Plovdiv Province XI (Extreme) 15.0 April 18
= 8 7.1 0   Japan, off the east coast of Honshu ( ) 35.0 May 27
= 8 7.1 0   New Hebrides, east of ( ) 15.0 June 29
= 9 7.0 0 British Kenya, Baringo County ( ) 15.0 January 6
= 9 7.0 0   Japan, Izu Islands ( ) 433.9 March 29
= 9 7.0 0   Peru, Cajamarca Region VI (Strong) 120.0 July 18
= 9 7.0 0   New Hebrides ( ) 190.0 August 24
= 9 7.0 0   Chile, off the coast of Maule Region ( ) 30.0 December 2
= 9 7.0 0   Dutch East Indies, off the south coast of Papua (province) ( ) 15.0 December 7
  • Note: At least 7.0 magnitude

Notable events

January

January
Strongest magnitude7.0 Mw British Kenya
Total fatalities0
Number by magnitude
8.0–8.90
7.0–7.91
6.0–6.94
Date Country and location Mw Depth (km) MMI Notes Casualties
Dead Injured
1 [1] Russian SFSR, Sea of Okhotsk 6.5 530.0
5 [2]   Bolivia, Santa Cruz Department, Bolivia 6.8 540.0
6 [3] British Kenya, Baringo County 7.0 15.0
10 [4] British Kenya, Uasin Gishu County 6.2 10.0 Aftershock.
12 [5]   Chile, Coquimbo Region 6.3 30.0

February

February
Strongest magnitude6.6 Mw Russian SFSR
Total fatalities0
Number by magnitude
8.0–8.90
7.0–7.90
6.0–6.94
Date Country and location Mw Depth (km) MMI Notes Casualties
Dead Injured
3 [6] Russian SFSR, Sakha Republic 6.2 35.0
10 [7] [8]   Mexico, Puebla 6.5 100.0 Fairly heavy damage was reported.
21 [9] Russian SFSR, Chukchi Sea 6.6 10.0
26 [10] Russian SFSR, Chukchi Sea 6.5 10.0

March

March
Strongest magnitude7.7 Mw southern Indian Ocean
Deadliest6.4 Mw Turkey
170 deaths
Total fatalities225+
Number by magnitude
8.0–8.90
7.0–7.94
6.0–6.95
5.0–5.92
Date Country and location Mw Depth (km) MMI Notes Casualties
Dead Injured
7 [11] [12]   Italy, off the west coast of Calabria 6.0 120.0 At least 51 deaths were caused as well as some damage. 51+
7 [13]   China, Gansu Province 6.2 15.0
8 [14] Iran, South Khorasan Province 5.0 0.0 4 deaths were reported as well as some damage. The depth was unknown. 4
9 [15] southern Indian Ocean 7.7 15.0
13 [16]   New Guinea, southeast of New Ireland (island) 6.5 75.0
16 [17]   France, southeast of the Loyalty Islands 7.6 10.0
22 [18]   Mexico, Oaxaca 7.6 15.0
26 [19]   Dutch East Indies, Molucca Sea 6.2 35.0
27 [20]   Italy, Friuli-Venezia Giulia 5.8 33.0 IX 40 people were injured and many homes were destroyed. 40
29 [21]   Japan, Izu Islands 7.0 405.0
31 [22] [23] Turkey, Izmir Province 6.4 10.0 IX 170 deaths were reported and a further 700 people were hurt. 2,600 homes collapsed and many were damaged. 170 700

April

April
Strongest magnitude7.1 Mw   Bulgaria 2 events
Deadliest7.1 Mw   Bulgaria
127 deaths
Total fatalities157
Number by magnitude
8.0–8.90
7.0–7.92
6.0–6.95
Date Country and location Mw Depth (km) MMI Notes Casualties
Dead Injured
9 [24] [25] [26]   Peru, Puno Region 6.7 25.0 IX The main destruction was caused by a flood. Landslides blocked a river and the ensuing flooding led to 10 deaths and many homes being destroyed. 10
14 [27] [28]   Bulgaria, Stara Zagora Province 7.1 10.0 X The 1928 Chirpan–Plovdiv earthquakes caused major destruction. These events are an example of a doublet earthquake. The effects of both events are listed here. 127 people were killed and 1,735 were injured. 74,750 homes were destroyed. 127 1,735
17 [29]   Mexico, Veracruz 6.5 35.0
18 [30] [31]   Bulgaria, Plovdiv Province 7.1 15.0 XI The fatalities and damages from this event are included in the previous event.
22 [32] Russian SFSR, Sea of Okhotsk 6.5 350.0
22 [33] Greece, Peloponnese (region) 6.0 29.0 IX 20 people were killed and 3,000 homes were destroyed. 20
27 [34] [35]   Peru, Puno Region 6.5 25.0 V

May

May
Strongest magnitude7.3 Mw   Peru
Deadliest7.3 Mw   Peru
29 deaths
Total fatalities29
Number by magnitude
8.0–8.90
7.0–7.92
6.0–6.92
Date Country and location Mw Depth (km) MMI Notes Casualties
Dead Injured
8 [36] Russian SFSR, Sea of Okhotsk 6.5 570.0
14 [37] [38]   Peru, Amazonas Region 7.3 120.0 X 29 people were killed in the 1928 Chachapoyas earthquake. Property damage costs were $8 million (1928 rate). 29
26 [39]   Chile, Antofagasta Region 6.2 130.0
27 [40]   Japan, off the east coast of Honshu 7.2 35.0

June

June
Strongest magnitude8.0 Mw   Mexico
Deadliest8.0 Mw   Mexico
4 deaths
Total fatalities4
Number by magnitude
8.0–8.91
7.0–7.91
6.0–6.98
Date Country and location Mw Depth (km) MMI Notes Casualties
Dead Injured
1 [41]   Japan, off the east coast of Honshu 6.3 20.0 Aftershock.
3 [42]   Japan, west of Kyushu 6.3 10.0
7 [43]   China, Heilongjiang Province 6.0 430.0
15 [44] [45] [46]   Philippines, Mindoro 6.9 25.0 VIII Some homes were destroyed. A tsunami washed away a rail line.
15 [47]   Philippines, Mindoro 6.7 15.0 Aftershock.
17 [48] [49] [50]   Mexico, Oaxaca 8.0 20.0 4 people were killed and some damage was reported. A tsunami was generated. 4
21 [51] Fiji 6.7 15.0
21 [52]   United States, southern Alaska 6.8 15.0
24 [53] Afghanistan, Badakhshan Province 6.5 120.0
29 [54]   New Hebrides, east of 7.1 15.0

July

July
Strongest magnitude7.0 Mw   Peru
Deadliest5.8 Mw   China
6 deaths
Total fatalities6
Number by magnitude
8.0–8.90
7.0–7.91
6.0–6.93
5.0–5.91
Date Country and location Mw Depth (km) MMI Notes Casualties
Dead Injured
1 [55] British Solomon Islands, south coast of Guadalcanal 6.5 15.0
18 [56] [57]   Peru, Cajamarca Region 7.0 120.0 VI
19 [58]   China, Sichuan Province 5.8 0.0 VII 6 people were killed and 10 were injured. Some homes were destroyed. 6 10
27 [59]   Dutch East Indies, north of Sumatra 6.0 100.0
28 [60]   Chile, Coquimbo Region 6.5 50.0

August

August
Strongest magnitude7.2 Mw   Mexico
Deadliest5.4 Mw Iran
10 deaths
Total fatalities10
Number by magnitude
8.0–8.90
7.0–7.92
6.0–6.94
5.0–5.91
Date Country and location Mw Depth (km) MMI Notes Casualties
Dead Injured
4 [61]   Mexico, off the coast of Oaxaca 7.2 20.0
5 [62]   Philippines, west of Luzon 6.2 35.0
10 [63]   Afghanistan, Badakhshan Province 6.8 255.0
12 [64]   Dutch East Indies, northwest of Halmahera 6.3 15.0
15 [65]   Argentina, Santiago del Estero Province 6.5 620.0
21 [66] Iran, North Khorasan Province 5.4 9.0 VIII 10 people were killed and some damage was reported. 10
24 [67]   New Hebrides 7.0 190.0

September

September
Strongest magnitude6.8 Mw 2 events
Total fatalities0
Number by magnitude
8.0–8.90
7.0–7.90
6.0–6.97
Date Country and location Mw Depth (km) MMI Notes Casualties
Dead Injured
1 [68] Pakistan, Punjab, Pakistan 6.5 35.0
7 [69]   New Guinea, Umboi Island 6.2 15.0
13 [70]   Dutch East Indies, Molucca Sea 6.5 35.0
21 [71]   Peru, Puno Region 6.8 225.0
22 [72] British Solomon Islands, Santa Cruz Islands 6.8 15.0
25 [73]   Japan, Bungo Channel 6.0 120.0
27 [74] Windward Islands 6.5 35.0

October

October
Strongest magnitude7.5 Mw   Mexico
Total fatalities0
Number by magnitude
8.0–8.90
7.0–7.91
6.0–6.93
Date Country and location Mw Depth (km) MMI Notes Casualties
Dead Injured
4 [75] Ethiopian Empire, SNNPR 6.0 35.0
9 [76]   Mexico, Oaxaca 7.5 25.0
15 [77] Pakistan, Baluchistan, Pakistan 6.8 35.0
25 [78]   Nicaragua, off the west coast 6.5 30.0

November

November
Strongest magnitude6.9 Mw   Dutch East Indies
Total fatalities0
Number by magnitude
8.0–8.90
7.0–7.90
6.0–6.95
Date Country and location Mw Depth (km) MMI Notes Casualties
Dead Injured
1 [79]   Mexico, Chihuahua (state) 6.4 10.0
6 [80]   New Hebrides 6.7 55.0
14 [81] Pakistan, Khyber Pakhtunkhwa 6.0 110.0
20 [82]   Chile, Antofagasta Region 6.8 45.0
28 [83]   Dutch East Indies, Flores 6.9 20.0

December

December
Strongest magnitude7.7 Mw   Chile
Deadliest7.7 Mw   Chile
279 deaths
Total fatalities376
Number by magnitude
8.0–8.90
7.0–7.94
6.0–6.94
Date Country and location Mw Depth (km) MMI Notes Casualties
Dead Injured
1 [84] [85]   Chile, Maule Region 7.7 35.0 IX The 1928 Talca earthquake caused 279 deaths. Many homes were destroyed. 279
2 [86]   Chile, off the coast of Maule Region 7.0 30.0 Aftershock.
7 [87]   Dutch East Indies, off the south coast of Papua (province) 7.0 15.0
9 [88] British Solomon Islands 6.7 15.0
10 [89]   Dutch East Indies, northern Sumatra 6.0 35.0
12 [90]   New Zealand, Kermadec Islands 6.8 30.0
19 [91] [92] [93]   Philippines, Mindanao 7.4 25.0 VII 97 people were killed due to the effects of the earthquake and a tsunami. 102 people were injured. Many homes collapsed. 97 102
28 [94]   Philippines, Mindanao 6.7 15.0 This occurred in a separate part of the island from the previous event. This is an example of remotely triggered earthquakes.

References

  1. ^ "On-Line Bulletin". International Seismological Centre. January 1, 1928. Retrieved February 22, 2016.
  2. ^ "On-Line Bulletin". International Seismological Centre. January 5, 1928. Retrieved February 22, 2016.
  3. ^ "M 7.0 - Kenya". United States Geological Survey. January 6, 1928. Retrieved February 22, 2016.
  4. ^ "M 6.2 - Kenya". United States Geological Survey. January 10, 1928. Retrieved February 22, 2016.
  5. ^ "M 6.3 - offshore Coquimbo, Chile". United States Geological Survey. January 12, 1928. Retrieved February 22, 2016.
  6. ^ "On-Line Bulletin". International Seismological Centre. February 3, 1928. Retrieved February 24, 2016.
  7. ^ "On-Line Bulletin". International Seismological Centre. February 10, 1928. Retrieved February 24, 2016.
  8. ^ "Significant Earthquake: MEXICO: OAXACA,COLIMA,PUEBLA,GUERRERO,MORELOS". National Geophysical Data Center. February 10, 1928. Retrieved February 24, 2016.
  9. ^ "M 6.6 - near the north coast of Chukotskiy Avtonomnyy Okrug, Russia". United States Geological Survey. February 21, 1928. Retrieved February 24, 2016.
  10. ^ "M 6.5 - near the north coast of Chukotskiy Avtonomnyy Okrug, Russia". United States Geological Survey. February 26, 1928. Retrieved February 24, 2016.
  11. ^ "On-Line Bulletin". International Seismological Centre. March 7, 1928. Retrieved February 24, 2016.
  12. ^ "Significant Earthquake: ITALY: SICILY,CALABRIA". National Geophysical Data Center. March 7, 1928. Retrieved February 24, 2016.
  13. ^ "M 6.2 - Gansu-Qinghai border region, China". United States Geological Survey. March 7, 1928. Retrieved February 24, 2016.
  14. ^ "Significant Earthquake: IRAN: NEHBANDAN". National Geophysical Data Center. March 8, 1928. Retrieved February 24, 2016.
  15. ^ "M 7.7 - South Indian Ocean". United States Geological Survey. March 9, 1928. Retrieved February 24, 2016.
  16. ^ "M 6.5 - New Ireland region, Papua New Guinea". United States Geological Survey. March 13, 1928. Retrieved February 24, 2016.
  17. ^ "M 7.6 - southeast of the Loyalty Islands". United States Geological Survey. March 16, 1928. Retrieved February 24, 2016.
  18. ^ "M 7.6 - Oaxaca, Mexico". United States Geological Survey. March 22, 1928. Retrieved February 24, 2016.
  19. ^ "M 6.2 - Molucca Sea". United States Geological Survey. March 26, 1928. Retrieved February 24, 2016.
  20. ^ "Significant Earthquake: ITALY: TOLMEZZO". National Geophysical Data Center. March 27, 1928. Retrieved March 2, 2019.
  21. ^ "M 7.0 - Izu Islands, Japan region". United States Geological Survey. March 29, 1928. Retrieved February 24, 2016.
  22. ^ "M 6.4 - western Turkey". United States Geological Survey. March 31, 1928. Retrieved February 24, 2016.
  23. ^ "Significant Earthquake: TURKEY: TEPEKOY, TORBALI". National Geophysical Data Center. March 31, 1928. Retrieved February 24, 2016.
  24. ^ "M 6.7 - central Peru". United States Geological Survey. April 9, 1928. Retrieved February 27, 2016.
  25. ^ "Significant Earthquake: PERU". National Geophysical Data Center. April 9, 1928. Retrieved February 27, 2016.
  26. ^ "Tsunami Event: S. PERU". National Geophysical Data Center. April 9, 1928. Retrieved February 27, 2016.
  27. ^ "M 7.1 - Bulgaria". United States Geological Survey. April 14, 1928. Retrieved February 27, 2016.
  28. ^ "Significant Earthquake: BULGARIA: CHIRPAN". National Geophysical Data Center. April 14, 1928. Retrieved February 27, 2016.
  29. ^ "M 6.5 - Veracruz, Mexico". United States Geological Survey. April 17, 1928. Retrieved February 27, 2016.
  30. ^ "M 7.1 - Bulgaria". United States Geological Survey. April 18, 1928. Retrieved February 27, 2016.
  31. ^ "Significant Earthquake: BULGARIA: POPOVITSA". National Geophysical Data Center. April 18, 1928. Retrieved February 27, 2016.
  32. ^ "On-Line Bulletin". International Seismological Centre. April 22, 1928. Retrieved February 27, 2016.
  33. ^ "Significant Earthquake: GREECE: CORINTH (CORINTHIA)". National Geophysical Data Center. April 22, 1928. Retrieved February 27, 2016.
  34. ^ "M 6.5 - central Peru". United States Geological Survey. April 27, 1928. Retrieved February 27, 2016.
  35. ^ "Significant Earthquake: PERU: ESQUILAYA". National Geophysical Data Center. April 27, 1928. Retrieved March 3, 2019.
  36. ^ "On-Line Bulletin". International Seismological Centre. May 8, 1928. Retrieved February 27, 2016.
  37. ^ "On-Line Bulletin". International Seismological Centre. May 14, 1928. Retrieved February 27, 2016.
  38. ^ "Significant Earthquake: PERU: CHACAHPOYAS,HUANCABAMBA,CAJAMARCA,PINPINCOS". National Geophysical Data Center. May 14, 1928. Retrieved February 27, 2016.
  39. ^ "On-Line Bulletin". International Seismological Centre. May 26, 1928. Retrieved February 27, 2016.
  40. ^ "M 7.2 - near the east coast of Honshu, Japan". United States Geological Survey. May 27, 1928. Retrieved February 27, 2016.
  41. ^ "M 6.3 - off the east coast of Honshu, Japan". United States Geological Survey. June 1, 1928. Retrieved March 2, 2016.
  42. ^ "M 6.3 - northwest of the Ryukyu Islands, Japan". United States Geological Survey. June 3, 1928. Retrieved March 2, 2016.
  43. ^ "On-Line Bulletin". International Seismological Centre. June 7, 1928. Retrieved March 2, 2016.
  44. ^ "M 6.9 - Mindoro, Philippines". United States Geological Survey. June 15, 1928. Retrieved March 2, 2016.
  45. ^ "Significant Earthquake: PHILIPPINES: SW MINDORO". National Geophysical Data Center. June 15, 1928. Retrieved March 2, 2016.
  46. ^ "Tsunami Event: SULU SEA". National Geophysical Data Center. June 15, 1928. Retrieved March 3, 2019.
  47. ^ "M 6.7 - Mindoro, Philippines". United States Geological Survey. June 15, 1928. Retrieved March 2, 2016.
  48. ^ "M 8.0 - 15 km ESE of San Gabriel Mixtepec, Mexico". United States Geological Survey. June 17, 1928. Retrieved March 2, 2016.
  49. ^ "Significant Earthquake: MEXICO: OAXACA". National Geophysical Data Center. June 17, 1928. Retrieved March 2, 2016.
  50. ^ "Tsunami Event: S. MEXICO". National Geophysical Data Center. June 17, 1928. Retrieved March 4, 2019.
  51. ^ "M 6.7 - Fiji region". United States Geological Survey. June 21, 1928. Retrieved March 5, 2016.
  52. ^ "M 6.8 - Southern Alaska". United States Geological Survey. June 21, 1928. Retrieved March 5, 2016.
  53. ^ "On-Line Bulletin". International Seismological Centre. June 24, 1928. Retrieved March 5, 2016.
  54. ^ "M 7.1 - Vanuatu region". United States Geological Survey. June 29, 1928. Retrieved March 5, 2016.
  55. ^ "M 6.5 - Solomon Islands". United States Geological Survey. July 9, 1928. Retrieved March 5, 2016.
  56. ^ "On-Line Bulletin". International Seismological Centre. July 18, 1928. Retrieved March 5, 2016.
  57. ^ "Significant Earthquake: PERU". National Geophysical Data Center. July 18, 1928. Retrieved March 5, 2019.
  58. ^ "Significant Earthquake: CHINA: SICHUAN PROVINCE". National Geophysical Data Center. July 19, 1928. Retrieved March 5, 2016.
  59. ^ "On-Line Bulletin". International Seismological Centre. July 27, 1928. Retrieved March 5, 2016.
  60. ^ "On-Line Bulletin". International Seismological Centre. July 28, 1928. Retrieved March 5, 2016.
  61. ^ "M 7.2 - offshore Oaxaca, Mexico". United States Geological Survey. August 4, 1928. Retrieved March 5, 2016.
  62. ^ "On-Line Bulletin". International Seismological Centre. August 5, 1928. Retrieved March 5, 2016.
  63. ^ "On-Line Bulletin". International Seismological Centre. August 10, 1928. Retrieved March 5, 2016.
  64. ^ "M 6.3 - Molucca Sea". United States Geological Survey. August 12, 1928. Retrieved March 5, 2016.
  65. ^ "On-Line Bulletin". International Seismological Centre. August 15, 1928. Retrieved March 5, 2016.
  66. ^ "Significant Earthquake: IRAN: SHIRVAN". National Geophysical Data Center. August 21, 1928. Retrieved March 5, 2016.
  67. ^ "On-Line Bulletin". International Seismological Centre. August 24, 1928. Retrieved March 5, 2016.
  68. ^ "M 6.5 - Pakistan". United States Geological Survey. September 1, 1928. Retrieved March 5, 2016.
  69. ^ "M 6.2 - eastern New Guinea region, Papua New Guinea". United States Geological Survey. September 7, 1928. Retrieved March 5, 2016.
  70. ^ "M 6.5 - Molucca Sea". United States Geological Survey. September 13, 1928. Retrieved March 5, 2016.
  71. ^ "On-Line Bulletin". International Seismological Centre. September 21, 1928. Retrieved March 5, 2016.
  72. ^ "M 6.8 - Santa Cruz Islands". United States Geological Survey. September 22, 1928. Retrieved March 5, 2016.
  73. ^ "On-Line Bulletin". International Seismological Centre. September 25, 1928. Retrieved March 5, 2016.
  74. ^ "On-Line Bulletin". International Seismological Centre. September 27, 1928. Retrieved March 5, 2016.
  75. ^ "On-Line Bulletin". International Seismological Centre. October 4, 1928. Retrieved March 6, 2016.
  76. ^ "M 7.5 - Oaxaca, Mexico". United States Geological Survey. October 9, 1928. Retrieved March 6, 2016.
  77. ^ "M 6.8 - Pakistan". United States Geological Survey. October 15, 1928. Retrieved March 6, 2016.
  78. ^ "M 6.5 - near the coast of Nicaragua". United States Geological Survey. October 25, 1928. Retrieved March 6, 2016.
  79. ^ "M 6.4 - Chihuahua, Mexico". United States Geological Survey. November 1, 1928. Retrieved March 6, 2016.
  80. ^ "M 6.7 - Vanuatu". United States Geological Survey. November 6, 1928. Retrieved March 6, 2016.
  81. ^ "On-Line Bulletin". International Seismological Centre. November 14, 1928. Retrieved March 6, 2016.
  82. ^ "M 6.8 - Antofagasta, Chile". United States Geological Survey. November 20, 1928. Retrieved March 6, 2016.
  83. ^ "M 6.9 - Flores region, Indonesia". United States Geological Survey. November 28, 1928. Retrieved March 6, 2016.
  84. ^ "M 7.7 - Maule, Chile". United States Geological Survey. December 1, 1928. Retrieved March 6, 2016.
  85. ^ "Significant Earthquake: CHILE: TALCA, CHILLAN, SANTIAGO, SAN FERNANDO". National Geophysical Data Center. December 1, 1928. Retrieved March 6, 2016.
  86. ^ "M 7.0 - offshore Maule, Chile". United States Geological Survey. December 2, 1928. Retrieved March 6, 2016.
  87. ^ "M 7.0 - near the south coast of Papua, Indonesia". United States Geological Survey. December 7, 1928. Retrieved March 6, 2016.
  88. ^ "M 6.7 - Solomon Islands". United States Geological Survey. December 9, 1928. Retrieved March 6, 2016.
  89. ^ "On-Line Bulletin". International Seismological Centre. December 10, 1928. Retrieved March 6, 2016.
  90. ^ "M 6.8 - Kermadec Islands region". United States Geological Survey. December 12, 1928. Retrieved March 6, 2016.
  91. ^ "M 7.4 - Mindanao, Philippines". United States Geological Survey. December 19, 1928. Retrieved March 6, 2016.
  92. ^ "Significant Earthquake: PHILIPPINES: COTABATO,N COAST OF ILLANA BAY". National Geophysical Data Center. December 19, 1928. Retrieved March 6, 2016.
  93. ^ "Tsunami Event: CELEBES SEA". National Geophysical Data Center. December 19, 1928. Retrieved March 6, 2016.
  94. ^ "M 6.7 - Mindanao, Philippines". United States Geological Survey. December 28, 1928. Retrieved March 6, 2016.
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