List of earthquakes in 1928
    Approximate epicenters of the earthquakes in 1928
| |||
Strongest magnitude |
 Oaxaca, Mexico (Magnitude 7.9) June 17 | ||
|---|---|---|---|
| Deadliest |
 Maule Region, Chile (Magnitude 7.7) December 1 279 deaths | ||
| Total fatalities | 807 | ||
| Number by magnitude | |||
| 9.0+ | 0 | ||
| 8.0−8.9 | 0 | ||
| 7.0−7.9 | 19 | ||
| 6.0−6.9 | 54 | ||
| 5.0−5.9 | 3 | ||
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 | Depth (km) | Date |
|---|---|---|---|---|---|
| 1 | 279 | 7.7 | Maule Region, Chile |
35.0 | December 1 |
| 2 | 170 | 6.4 |  Izmir Province, Turkey |
10.0 | March 31 |
| 3 | 127 | 7.1 |  Stara Zagora Province and Plovdiv Province, Bulgaria |
15.0 | April 14, April 18 |
| 4 | 97 | 7.4 |  Mindanao, Philippines |
25.0 | December 19 |
| 5 | 51 | 6.0 |  off the west coast of Calabria, Italy |
120.0 | March 7 |
| 6 | 29 | 7.3 |  Amazonas Region, Peru |
120.0 | May 14 |
| 7 | 20 | 6.0 |  Peloponnese (region), Greece |
29.0 | April 22 |
| 8 | 10 | 6.7 | Puno Region, Peru |
25.0 | April 9 |
| 8 | 10 | 5.4 |  North Khorasan Province, Iran |
9.0 | August 21 |
- Note: At least 10 casualties
By magnitude
| Rank | Magnitude | Death toll | Location | Depth (km) | Date |
|---|---|---|---|---|---|
| 1 | 7.9 | 4 | Oaxaca, Mexico |
20.0 | June 17 |
| 2 | 7.7 | 0 |  southern Indian Ocean |
15.0 | March 9 |
| 2 | 7.7 | 279 | Maule Region, Chile |
35.0 | December 1 |
| 3 | 7.6 | 0 |  southeast of the Loyalty Islands, New Caledonia |
10.0 | March 16 |
| 3 | 7.6 | 0 | Oaxaca, Mexico |
15.0 | March 22 |
| 4 | 7.5 | 0 | Oaxaca, Mexico |
25.0 | October 9 |
| 5 | 7.4 | 97 | Mindanao, Philippines |
25.0 | December 19 |
| 6 | 7.3 | 29 | Amazonas Region, Peru |
120.0 | May 14 |
| 7 | 7.2 | 0 | off the coast of Oaxaca, Mexico |
20.0 | August 4 |
| 8 | 7.1 | 127 | Stara Zagora Province, Bulgaria |
10.0 | April 14 |
| 8 | 7.1 | 127 | Plovdiv Province, Bulgaria |
15.0 | April 18 |
| 8 | 7.1 | 0 |  off the east coast of Honshu, Japan |
35.0 | May 27 |
| 8 | 7.1 | 0 |  east of Vanuatu |
15.0 | June 29 |
| 9 | 7.0 | 0 |  Baringo County, Kenya |
15.0 | January 6 |
| 9 | 7.0 | 0 | Izu Islands, Japan |
433.9 | March 29 |
| 9 | 7.0 | 0 | Cajamarca Region, Peru |
120.0 | July 18 |
| 9 | 7.0 | 0 | Vanuatu |
190.0 | August 24 |
| 9 | 7.0 | 0 | off the coast of Maule Region, Chile |
30.0 | December 2 |
| 9 | 7.0 | 0 |  off the south coast of Papua (province), Indonesia |
15.0 | December 7 |
- Note: At least 7.0 magnitude
Notable events
January
A magnitude 6.5 earthquake struck the Sea of Okhotsk, Russia on January 1 at a depth of 530.0 km.[1]
A magnitude 6.8 earthquake struck Santa Cruz Department, Bolivia on January 5 at a depth of 540.0 km.[2]- A magnitude 7.0 earthquake struck Baringo County, Kenya on January 6 at a depth of 15.0 km. This was a fairly strong earthquake for this region.[3]
- A magnitude 6.2 aftershock struck Uasin Gishu County, Kenya on January 10 at a depth of 10.0 km.[4]
- A magnitude 6.3 earthquake struck off the coast of Coquimbo Region, Chile on January 12 at a depth of 30.0 km.[5]
February
- A magnitude 6.2 earthquake struck Sakha Republic, Russia on February 3 at a depth of 35.0 km.[6]
- A magnitude 6.5 earthquake struck Puebla, Mexico on February 10 at a depth of 100.0 km.[7] Fairly heavy damage was reported in the area.[8]
- A magnitude 6.6 earthquake struck the Chukchi Sea, Russia on February 21 at a depth of 10.0 km.[9]
- A magnitude 6.5 earthquake struck the Chukchi Sea, Russia on February 26 at a depth of 35.0 km.[10]
March
- A magnitude 6.0 earthquake struck off the west coast of Calabria, Italy on March 7 at a depth of 120.0 km.[11] At least 51 deaths were reported as well as some damage.[12]
A magnitude 6.2 earthquake struck Gansu Province, China on March 7 at a depth of 15.0 km.[13]- A magnitude 5.0 earthquake struck South Khorasan Province, Iran on March 8 at an unknown depth. Four people died and some damage was caused.[14]
- A magnitude 7.7 earthquake struck the southern Indian Ocean on March 9 at a depth of 15.0 km.[15]
A magnitude 6.5 earthquake struck southeast of New Ireland (island), Papua New Guinea on March 13 at a depth of 75.0 km.[16]- A magnitude 7.6 earthquake struck southeast of the Loyalty Islands, New Caledonia on March 16 at a depth of 10.0 km.[17]
- A magnitude 7.6 earthquake struck Oaxaca, Mexico on March 22 at a depth of 15.0 km.[18]
- A magnitude 6.2 earthquake struck the Molucca Sea, Indonesia on March 26 at a depth of 35.0 km.[19]
- A magnitude 7.0 earthquake struck the Izu Islands, Japan on March 29 at a depth of 405.0 km.[20]
- A magnitude 6.4 earthquake struck Izmir Province, Turkey on March 31 at a depth of 10.0 km.[21] One-hundred and seventy deaths were reported with a further 700 people injured. Two-thousand six-hundred homes were destroyed and many more were damaged.[22]
April
- A magnitude 6.7 earthquake struck Puno Region, Peru on April 9 at a depth of 25.0 km. Ten people were killed and many homes were destroyed partly owing to landslides which dammed a river later leading to flooding.[23][24][25]
- A magnitude 7.1 earthquake struck Stara Zagora Province, Bulgaria on April 14 at a depth of 10.0 km. Catastrophic damage was caused with as many as 74,750 homes being destroyed. The human cost was 127 lives and a further 1,735 people were injured.[26][27]
- A magnitude 6.5 earthquake struck Veracruz, Mexico on April 17 at a depth of 35.0 km.[28]
- A magnitude 7.1 earthquake struck Plovdiv Province, Bulgaria on April 18 at a depth of 15.0 km. This and the previous event four days earlier can be considered a doublet earthquake. The fatalities and damages from this event are included in the event from April 14.[29][30]
- A magnitude 6.5 earthquake struck the Sea of Okhotsk, Russia on April 22 at a depth of 350.0 km.[31]
- A magnitude 6.0 earthquake struck Peloponnese (region), Greece on April 22 at a depth of 29.0 km. Twenty deaths were reported as well as the destruction of 3,000 homes.[32]
- A magnitude 6.5 earthquake struck Puno Region, Peru on April 27 at a depth of 25.0 km.[33]
May
- A magnitude 6.5 earthquake struck the Sea of Okhotsk, Russia on May 8 at a depth of 570.0 km.[34]
- A magnitude 7.3 earthquake struck Amazonas Region, Peru on May 14 at a depth of 120.0 km.[35] Twenty-nine people died and $8 million (1928 rate) in property damage was caused.[36]
- A magnitude 6.2 earthquake struck Antofagasta Region, Chile on May 26 at a depth of 130.0 km.[37]
- A magnitude 7.2 earthquake struck off the east coast of Honshu, Japan on May 27 at a depth of 35.0 km.[38]
June
- A magnitude 6.3 earthquake struck off the east coast of Honshu, Japan on June 1 at a depth of 20.0 km.[39]
- A magnitude 6.3 earthquake struck west of Kyushu, Japan on June 3 at a depth of 10.0 km.[40]
- A magnitude 6.0 earthquake struck Heilongjiang Province, China on June 7 at a depth of 430.0 km.[41]
- A magnitude 6.9 earthquake struck Mindoro, Philippines on June 15 at a depth of 25.0 km. Some homes were reported destroyed.[42][43]
- A magnitude 6.7 earthquake struck Mindoro, Philippines on June 15 at a depth of 15.0 km.[44]
- A magnitude 7.9 earthquake struck Oaxaca, Mexico on June 17 at a depth of 20.0 km. Four people were killed and some damage was caused. A tsunami was generated.[45][46]
A magnitude 6.7 earthquake struck Fiji on June 21 at a depth of 15.0 km.[47]
A magnitude 6.8 earthquake struck southern Alaska on June 21 at a depth of 15.0 km.[48]
A magnitude 6.5 earthquake struck Badakhshan Province, Afghanistan on June 24 at a depth of 120.0 km.[49]- A magnitude 7.1 earthquake struck east of Vanuatu on June 29 at a depth of 15.0 km.[50]
July
A magnitude 6.5 earthquake struck off the south coast of Guadalcanal, Solomon Islands on July 9 at a depth of 15.0 km.[51]- A magnitude 7.0 earthquake struck Cajamarca Region, Peru on July 18 at a depth of 120.0 km.[52]
- A magnitude 5.8 earthquake struck Sichuan Province, China on July 19 at an unknown depth. Six people were killed, 10 were injured and some homes were destroyed.[53]
- A magnitude 6.0 earthquake struck just north of Sumatra, Indonesia on July 27 at a depth of 100.0 km.[54]
- A magnitude 6.5 earthquake struck Coquimbo Region, Chile on July 28 at a depth of 50.0 km.[55]
August
- A magnitude 7.2 earthquake struck off the coast of Oaxaca, Mexico on August 4 at a depth of 20.0 km.[56]
- A magnitude 6.2 earthquake struck west of Luzon, Philippines on August 5 at a depth of 35.0 km.[57]
- A magnitude 6.8 earthquake struck Badakhshan Province, Afghanistan on August 10 at a depth of 255.0 km.[58]
- A magnitude 6.3 earthquake struck northwest of Halmahera, Indonesia on August 12 at a depth of 15.0 km.[59]
A magnitude 6.5 earthquake struck Santiago del Estero Province, Argentina on August 15 at a depth of 620.0 km.[60]- A magnitude 5.4 earthquake struck North Khorasan Province, Iran on August 21 at a depth of 9.0 km. Ten people were killed and some damage was reported.[61]
- A magnitude 7.0 earthquake struck Vanuatu on August 24 at a depth of 190.0 km.[62]
September
A magnitude 6.5 earthquake struck Punjab, Pakistan on September 1 at a depth of 35.0 km.[63]- A magnitude 6.2 earthquake struck Umboi Island, Papua New Guinea on September 7 at a depth of 15.0 km.[64]
- A magnitude 6.5 earthquake struck the Molucca Sea, Indonesia on September 13 at a depth of 35.0 km.[65]
- A magnitude 6.8 earthquake struck Puno Region, Peru on September 21 at a depth of 225.0 km.[66]
- A magnitude 6.8 earthquake struck the Santa Cruz Islands, Solomon Islands on September 22 at a depth of 15.0 km.[67]
- A magnitude 6.0 earthquake struck the Bungo Channel, Japan on September 25 at a depth of 120.0 km.[68]
- A magnitude 6.5 earthquake struck the Windward Islands on September 27 at a depth of 35.0 km.[69]
October
A magnitude 6.0 earthquake struck SNNPR, Ethiopia on October 4 at a depth of 35.0 km.[70]- A magnitude 7.5 earthquake struck Oaxaca, Mexico on October 9 at a depth of 25.0 km.[71]
- A magnitude 6.8 earthquake struck Baluchistan, Pakistan on October 15 at a depth of 35.0 km.[72]
A magnitude 6.5 earthquake struck off the west coast of Nicaragua on October 25 at a depth of 30.0 km.[73]
November
- A magnitude 6.4 earthquake struck Chihuahua (state), Mexico on November 1 at a depth of 10.0 km.[74]
- A magnitude 6.7 earthquake struck Vanuatu on November 6 at a depth of 55.0 km.[75]
- A magnitude 6.0 earthquake struck Khyber Pakhtunkhwa, Pakistan on November 14 at a depth of 110.0 km.[76]
- A magnitude 6.8 earthquake struck Antofagasta Region, Chile on November 20 at a depth of 45.0 km.[77]
- A magnitude 6.9 earthquake struck Flores, Indonesia on November 28 at a depth of 20.0 km.[78]
December
- A magnitude 7.7 earthquake struck Maule Region, Chile on December 1 at a depth of 35.0 km. Two-hundred and seventy-nine people were killed and many homes were destroyed.[79][80]
- A magnitude 7.0 aftershock struck off the coast of Maule Region, Chile on December 2 at a depth of 30.0 km.[81]
- A magnitude 7.0 earthquake struck off the south coast of Papua (province), Indonesia on December 7 at a depth of 15.0 km.[82]
- A magnitude 6.7 earthquake struck the Solomon Islands on December 9 at a depth of 15.0 km.[83]
- A magnitude 6.0 earthquake struck northern Sumatra, Indonesia on December 10 at a depth of 35.0 km.[84]
A magnitude 6.8 earthquake struck the Kermadec Islands, New Zealand on December 12 at a depth of 30.0 km.[85]- A magnitude 7.4 earthquake struck Mindanao, Philippines on December 19 at a depth of 25.0 km. Ninety-seven people died partly due to a tsunami. One-hundred and two people were injured and many homes were destroyed.[86][87][88]
- A magnitude 6.7 earthquake struck Mindanao, Philippines on December 28 at a depth of 15.0 km.[89]
References
- ↑ "On-Line Bulletin". International Seismological Centre. January 1, 1928. Retrieved February 22, 2016.
- ↑ "On-Line Bulletin". International Seismological Centre. January 5, 1928. Retrieved February 22, 2016.
- ↑ "M7.0 - Kenya". United States Geological Survey. January 6, 1928. Retrieved February 22, 2016.
- ↑ "M6.2 - Kenya". United States Geological Survey. January 10, 1928. Retrieved February 22, 2016.
- ↑ "M6.3 - offshore Coquimbo, Chile". United States Geological Survey. January 12, 1928. Retrieved February 22, 2016.
- ↑ "On-Line Bulletin". International Seismological Centre. February 3, 1928. Retrieved February 24, 2016.
- ↑ "On-Line Bulletin". International Seismological Centre. February 10, 1928. Retrieved February 24, 2016.
- ↑ "Significant Earthquake MEXICO: OAXACA,COLIMA,PUEBLA,GUERRERO,MORELOS". National Geophysical Data Center. February 10, 1928. Retrieved February 24, 2016.
- ↑ "M6.6 - near the north coast of Chukotskiy Avtonomnyy Okrug, Russia". United States Geological Survey. February 21, 1928. Retrieved February 24, 2016.
- ↑ "M6.5 - near the north coast of Chukotskiy Avtonomnyy Okrug, Russia". United States Geological Survey. February 26, 1928. Retrieved February 24, 2016.
- ↑ "On-Line Bulletin". International Seismological Centre. March 7, 1928. Retrieved February 24, 2016.
- ↑ "Significant Earthquake ITALY: SICILY,CALABRIA". National Geophysical Data Center. March 7, 1928. Retrieved February 24, 2016.
- ↑ "M6.2 - Gansu-Qinghai border region, China". United States Geological Survey. March 7, 1928. Retrieved February 24, 2016.
- ↑ "Significant Earthquake IRAN: NEHBANDAN". National Geophysical Data Center. March 8, 1928. Retrieved February 24, 2016.
- ↑ "M7.7 - South Indian Ocean". United States Geological Survey. March 9, 1928. Retrieved February 24, 2016.
- ↑ "M6.5 - New Britain region, Papua New Guinea". United States Geological Survey. March 13, 1928. Retrieved February 24, 2016.
- ↑ "M7.6 - southeast of the Loyalty Islands". United States Geological Survey. March 16, 1928. Retrieved February 24, 2016.
- ↑ "M7.6 - Oaxaca, Mexico". United States Geological Survey. March 22, 1928. Retrieved February 24, 2016.
- ↑ "M6.2 - Molucca Sea". United States Geological Survey. March 26, 1928. Retrieved February 24, 2016.
- ↑ "M7.0 - Izu Islands, Japan region". United States Geological Survey. March 29, 1928. Retrieved February 24, 2016.
- ↑ "M6.4 - western Turkey". United States Geological Survey. March 31, 1928. Retrieved February 24, 2016.
- ↑ "Significant Earthquake TURKEY: TEPEKOY, TORBALI". National Geophysical Data Center. March 31, 1928. Retrieved February 24, 2016.
- ↑ "M6.7 - central Peru". United States Geological Survey. April 9, 1928. Retrieved February 27, 2016.
- ↑ "Significant Earthquake PERU". National Geophysical Data Center. April 9, 1928. Retrieved February 27, 2016.
- ↑ "Tsunami Event S.PERU". National Geophysical Data Center. April 9, 1928. Retrieved February 27, 2016.
- ↑ "M7.1 - Bulgaria". United States Geological Survey. April 14, 1928. Retrieved February 27, 2016.
- ↑ "Significant Earthquake BULGARIA: CHIRPAN". National Geophysical Data Center. April 14, 1928. Retrieved February 27, 2016.
- ↑ "M6.5 - Veracruz, Mexico". United States Geological Survey. April 17, 1928. Retrieved February 27, 2016.
- ↑ "M7.1 - Bulgaria". United States Geological Survey. April 18, 1928. Retrieved February 27, 2016.
- ↑ "Significant Earthquake BULGARIA: POPOVITSA". National Geophysical Data Center. April 18, 1928. Retrieved February 27, 2016.
- ↑ "On-Line Bulletin". International Seismological Centre. April 22, 1928. Retrieved February 27, 2016.
- ↑ "Significant Earthquake GREECE: CORINTH (CORINTHIA)". National Geophysical Data Center. April 22, 1928. Retrieved February 27, 2016.
- ↑ "M6.5 - central Peru". United States Geological Survey. April 27, 1928. Retrieved February 27, 2016.
- ↑ "On-Line Bulletin". International Seismological Centre. May 8, 1928. Retrieved February 27, 2016.
- ↑ "On-Line Bulletin". International Seismological Centre. May 14, 1928. Retrieved February 27, 2016.
- ↑ "Significant Earthquake PERU: CHACAHPOYAS,HUANCABAMBA,CAJAMARCA,PINPINCOS". National Geophysical Data Center. May 14, 1928. Retrieved February 27, 2016.
- ↑ "On-Line Bulletin". International Seismological Centre. May 26, 1928. Retrieved February 27, 2016.
- ↑ "M7.2 - near the east coast of Honshu, Japan". United States Geological Survey. May 27, 1928. Retrieved February 27, 2016.
- ↑ "M6.3 - off the east coast of Honshu, Japan". United States Geological Survey. June 1, 1928. Retrieved March 2, 2016.
- ↑ "M6.3 - northwest of the Ryukyu Islands, Japan". United States Geological Survey. June 3, 1928. Retrieved March 2, 2016.
- ↑ "On-Line Bulletin". International Seismological Centre. June 7, 1928. Retrieved March 2, 2016.
- ↑ "M6.9 - Mindoro, Philippines". United States Geological Survey. June 15, 1928. Retrieved March 2, 2016.
- ↑ "Significant Earthquake PHILIPPINES: SW MINDORO". National Geophysical Data Center. June 15, 1928. Retrieved March 2, 2016.
- ↑ "M6.7 - Mindoro, Philippines". United States Geological Survey. June 15, 1928. Retrieved March 2, 2016.
- ↑ "M7.9 - Oaxaca, Mexico". United States Geological Survey. June 17, 1928. Retrieved March 2, 2016.
- ↑ "Significant Earthquake MEXICO: OAXACA". National Geophysical Data Center. June 17, 1928. Retrieved March 2, 2016.
- ↑ "M6.7 - Fiji region". United States Geological Survey. June 21, 1928. Retrieved March 5, 2016.
- ↑ "M6.8 - Southern Alaska". United States Geological Survey. June 21, 1928. Retrieved March 5, 2016.
- ↑ "On-Line Bulletin". International Seismological Centre. June 24, 1928. Retrieved March 5, 2016.
- ↑ "M7.1 - Vanuatu region". United States Geological Survey. June 29, 1928. Retrieved March 5, 2016.
- ↑ "M6.5 - Solomon Islands". United States Geological Survey. July 9, 1928. Retrieved March 5, 2016.
- ↑ "On-Line Bulletin". International Seismological Centre. July 18, 1928. Retrieved March 5, 2016.
- ↑ "Significant Earthquake CHINA: SICHUAN PROVINCE". National Geophysical Data Center. July 19, 1928. Retrieved March 5, 2016.
- ↑ "On-Line Bulletin". International Seismological Centre. July 27, 1928. Retrieved March 5, 2016.
- ↑ "On-Line Bulletin". International Seismological Centre. July 28, 1928. Retrieved March 5, 2016.
- ↑ "M7.2 - offshore Oaxaca, Mexico". United States Geological Survey. August 4, 1928. Retrieved March 5, 2016.
- ↑ "On-Line Bulletin". International Seismological Centre. August 5, 1928. Retrieved March 5, 2016.
- ↑ "On-Line Bulletin". International Seismological Centre. August 10, 1928. Retrieved March 5, 2016.
- ↑ "M6.3 - Molucca Sea". United States Geological Survey. August 12, 1928. Retrieved March 5, 2016.
- ↑ "On-Line Bulletin". International Seismological Centre. August 15, 1928. Retrieved March 5, 2016.
- ↑ "Significant Earthquake IRAN: SHIRVAN". National Geophysical Data Center. August 21, 1928. Retrieved March 5, 2016.
- ↑ "On-Line Bulletin". International Seismological Centre. August 24, 1928. Retrieved March 5, 2016.
- ↑ "M6.5 - Pakistan". United States Geological Survey. September 1, 1928. Retrieved March 5, 2016.
- ↑ "M6.2 - eastern New Guinea region, Papua New Guinea". United States Geological Survey. September 7, 1928. Retrieved March 5, 2016.
- ↑ "M6.5 - Molucca Sea". United States Geological Survey. September 13, 1928. Retrieved March 5, 2016.
- ↑ "On-Line Bulletin". International Seismological Centre. September 21, 1928. Retrieved March 5, 2016.
- ↑ "M6.8 - Santa Cruz Islands". United States Geological Survey. September 22, 1928. Retrieved March 5, 2016.
- ↑ "On-Line Bulletin". International Seismological Centre. September 25, 1928. Retrieved March 5, 2016.
- ↑ "On-Line Bulletin". International Seismological Centre. September 27, 1928. Retrieved March 5, 2016.
- ↑ "On-Line Bulletin". International Seismological Centre. October 4, 1928. Retrieved March 6, 2016.
- ↑ "M7.5 - Oaxaca, Mexico". United States Geological Survey. October 9, 1928. Retrieved March 6, 2016.
- ↑ "M6.8 - Pakistan". United States Geological Survey. October 15, 1928. Retrieved March 6, 2016.
- ↑ "M6.5 - near the coast of Nicaragua". United States Geological Survey. October 25, 1928. Retrieved March 6, 2016.
- ↑ "M6.4 - Chihuahua, Mexico". United States Geological Survey. November 1, 1928. Retrieved March 6, 2016.
- ↑ "M6.7 - Vanuatu". United States Geological Survey. November 6, 1928. Retrieved March 6, 2016.
- ↑ "On-Line Bulletin". International Seismological Centre. November 14, 1928. Retrieved March 6, 2016.
- ↑ "M6.8 - Antofagasta, Chile". United States Geological Survey. November 20, 1928. Retrieved March 6, 2016.
- ↑ "M6.9 - Flores region, Indonesia". United States Geological Survey. November 28, 1928. Retrieved March 6, 2016.
- ↑ "M7.7 - Maule, Chile". United States Geological Survey. December 1, 1928. Retrieved March 6, 2016.
- ↑ "Significant Earthquake CHILE: TALCA, CHILLAN, SANTIAGO, SAN FERNANDO". National Geophysical Data Center. December 1, 1928. Retrieved March 6, 2016.
- ↑ "M7.0 - offshore Maule, Chile". United States Geological Survey. December 2, 1928. Retrieved March 6, 2016.
- ↑ "M7.0 - near the south coast of Papua, Indonesia". United States Geological Survey. December 7, 1928. Retrieved March 6, 2016.
- ↑ "M6.7 - Solomon Islands". United States Geological Survey. December 9, 1928. Retrieved March 6, 2016.
- ↑ "On-Line Bulletin". International Seismological Centre. December 10, 1928. Retrieved March 6, 2016.
- ↑ "M6.8 - Kermadec Islands region". United States Geological Survey. December 12, 1928. Retrieved March 6, 2016.
- ↑ "M7.4 - Mindanao, Philippines". United States Geological Survey. December 19, 1928. Retrieved March 6, 2016.
- ↑ "Significant Earthquake PHILIPPINES: COTABATO,N COAST OF ILLANA BAY". National Geophysical Data Center. December 19, 1928. Retrieved March 6, 2016.
- ↑ "Tsunami Event CELEBES SEA". National Geophysical Data Center. December 19, 1928. Retrieved March 6, 2016.
- ↑ "M6.7 - Mindanao, Philippines". United States Geological Survey. December 28, 1928. Retrieved March 6, 2016.
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