List of earthquakes in 1971

This is a list of earthquakes in 1971. 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. Maximum intensities are indicated on the Mercalli intensity scale and are sourced from United States Geological Survey (USGS) ShakeMap data. Like the previous year, 1971 had heightened seismic activity. 20 earthquakes exceeded magnitude 7 with 2 of those measuring above magnitude 8. Both of the magnitude 8 events happened within a 12-day span in July in Papua New Guinea. A fairly robust aftershock sequence followed which contributed to the number of magnitude 7+ events. Chile, Russia and Indonesia had significant events during the year. The deadliest earthquake accounting for the vast majority of the 1,290 fatalities occurred in Turkey in May. 1,000 died in this event coming not long after another deadly event elsewhere in the country. In February, Los Angeles, California was jolted by one of its largest events resulting in 65 deaths.

Earthquakes in 1971
Approximate epicenters of the earthquakes in 1971
Strongest magnitude southeast of New Ireland (island), Papua New Guinea (Magnitude 8.1) July 26
Deadliest Bingol Province, Turkey (Magnitude 6.9) May 22 1,000 deaths
Total fatalities1,290
Number by magnitude
9.0+0
8.0−8.92
7.0−7.918
6.0−6.979
5.0−5.96
← 1970
1972 →

Overall

By death toll
Rank Death toll Magnitude Location MMI Depth (km) Date
1 1,000 6.9 Bingol Province, Turkey VIII (Severe) 10.0 May 22
2 100 6.2 Burdur Province, Turkey V (Moderate) 22.5 May 12
3 83 7.8 Valparaiso Region, Chile VI (Strong) 60.3 July 9
4 65 6.6 San Fernando Valley, California IX (Violent) 9.0 February 9
5 24 4.6 Lazio, Italy VIII (Severe) 33.0 February 6
  • Note: At least 10 casualties

By magnitude
Rank Magnitude Death toll Location MMI Depth (km) Date
1 8.1 0 southeast of New Ireland (island), Papua New Guinea VIII (Severe) 40.0 July 26
2 8.0 3 southeast of New Ireland (island), Papua New Guinea VIII (Severe) 40.0 July 14
3 7.8 83 Valparaiso Region, Chile VI (Strong) 60.3 July 9
4 7.7 0 Papua (province), Indonesia IX (Violent) 30.0 January 10
5 7.6 0 off the east coast of Kamchatka, Russia X (Extreme) 27.5 December 15
6 7.4 1 Loreto Region, Peru VII (Very strong) 120.0 July 27
7 7.3 0 southwest of Sakhalin Island, Russia VI (Strong) 18.1 September 5
7 7.3 0 off the east coast of Kamchatka, Russia VII (Very strong) 125.0 November 24
8 7.1 0 southern Mid-Atlantic Ridge ( ) 15.0 January 3
8 7.1 0 off the south coast of Hokkaido, Japan VI (Strong) 54.8 August 2
8 7.1 0 Santa Cruz Islands, Solomon Islands VII (Very strong) 113.1 November 21
9 7.0 0 off the west coast of Sumatra, Indonesia VII (Very strong) 30.0 February 4
9 7.0 0 Andreanof Islands, Alaska ( ) 28.9 February 7
9 7.0 0 South Shetland Islands ( ) 12.5 February 8
9 7.0 0 off the west coast of Sumatra, Indonesia V (Moderate) 75.0 April 8
9 7.0 0 Andreanof Islands, Alaska VII (Very strong) 24.2 May 2
9 7.0 0 Magadan Oblast, Russia ( ) 10.0 May 18
9 7.0 0 southeast of New Ireland (island), Papua New Guinea VI (Strong) 35.0 July 19
9 7.0 0 off the east coast of New Britain, Papua New Guinea ( ) 40.0 July 26
9 7.0 0 Banda Sea, Indonesia ( ) 131.0 September 16
  • Note: At least 7.0 magnitude

Notable events

January
January
Strongest magnitude7.7 Mw , Indonesia
Total fatalities0
Number by magnitude
8.0−8.90
7.0−7.92
6.0−6.98
5.0−5.90

February
February
Strongest magnitude7.0 Mw 3 events
Deadliest6.6 Mw , United States
65 deaths
Total fatalities90
Number by magnitude
8.0−8.90
7.0−7.93
6.0−6.94
5.0−5.91
  • A magnitude 7.0 earthquake struck off the west coast of Sumatra, Indonesia on February 4 at a depth of 30.0 km. The shock had a maximum intensity of VII (Very strong).[12] Some damage was caused.[13]
  • A magnitude 4.6 earthquake struck Lazio, Italy on February 6 at a depth of 33.0 km. The shock had a maximum intensity of VIII (Severe). Although a fairly modest magnitude there was major destruction. 24 people were killed and 150 injured. 40 homes were destroyed and 1,678 sustained damage. Costs were around $41 million (1971 rate).[14]
  • A magnitude 7.0 earthquake struck the Andreanof Islands, Alaska on February 7 at a depth of 28.9 km.[15]
  • A magnitude 7.0 earthquake struck the South Shetland Islands on February 8 at a depth of 12.5 km.[16]
  • A magnitude 6.6 earthquake struck the San Fernando Valley, California on February 9 at a depth of 9.0 km. The shock had a maximum intensity of IX (Violent).[17] This was one of the most destructive earthquakes to affect southern California. 65 people were killed and over 2,000 were injured. Damage costs were $505 million (1971 rate).[18]
  • A magnitude 5.8 earthquake struck Semnan Province, Iran on February 14 at a depth of 18.5 km.[19] 1 person died and some damage was caused.[20]
  • A magnitude 6.5 earthquake struck south of Fiji on February 15 at a depth of 587.2 km.[21]
  • A magnitude 6.9 earthquake struck Jujuy Province, Argentina on February 21 at a depth of 183.7 km.[22]
  • A magnitude 6.0 earthquake struck the Solomon Islands on February 26 at a depth of 98.4 km.[23]

March
March
Strongest magnitude6.6 Mw , Papua New Guinea
Total fatalities0
Number by magnitude
8.0−8.90
7.0−7.90
6.0−6.95
5.0−5.90
  • A magnitude 6.6 earthquake struck Madang Province, Papua New Guinea on March 13 at a depth of 111.0 km. The shock had a maximum intensity of V (Moderate).[24]
  • A magnitude 6.1 earthquake struck off the east coast of Mindanao, Philippines on March 16 at a depth of 58.5 km.[25]
  • A magnitude 6.2 earthquake struck east of Jan Mayen Island, Norway on March 23 at a depth of 15.0 km.[26]
  • A magnitude 6.2 earthquake struck western Xinjiang Province, China on March 23 at a depth of 15.0 km. The shock had a maximum intensity of VII (Very strong).[27]
  • A magnitude 6.0 earthquake struck southern Qinghai Province, China on March 24 at a depth of 10.0 km. The shock had a maximum intensity of VIII (Severe).[28]

April
April
Strongest magnitude7.0 Mw , Indonesia
Deadliest6.1 Mw , Iran
1 death
Total fatalities1
Number by magnitude
8.0−8.90
7.0−7.91
6.0−6.95
5.0−5.90
  • A magnitude 6.1 earthquake struck off the east coast of Honshu, Japan on April 4 at a depth of 35.0 km.[29]
  • A magnitude 6.6 earthquake struck northeast of Halmahera, Indonesia on April 7 at a depth of 31.3 km. The shock had a maximum intensity of V (Moderate).[30]
  • A magnitude 7.0 earthquake struck off the west coast of Sumatra, Indonesia on April 8 at a depth of 75.0 km. The shock had a maximum intensity of V (Moderate).[31]
  • A magnitude 6.1 earthquake struck Hormozgan Province, Iran on April 12 at a depth of 15.0 km. The shock had a maximum intensity of VII (Very strong).[32] 1 person was killed and major damage was reported.[33]
  • A magnitude 6.4 earthquake struck Yunnan Province, China on April 28 at a depth of 10.0 km. The shock had a maximum intensity of VII (Very strong).[34]
  • A magnitude 6.0 earthquake struck the Sibuyan Sea, Philippines on April 29 at a depth of 11.7 km. The shock had a maximum intensity of VII (Very strong).[35]

May
May
Strongest magnitude7.0 Mw 2 events
Deadliest6.9 Mw , Turkey
1,000 deaths
Total fatalities1,100
Number by magnitude
8.0−8.90
7.0−7.92
6.0−6.913
5.0−5.90
  • A magnitude 7.0 earthquake struck the Andreanof Islands, United States on May 2 at a depth of 24.2 km. The shock had a maximum intensity of VII (Very strong).[36]
  • A magnitude 6.0 earthquake struck the Solomon Islands on May 3 at a depth of 10.0 km.[37]
  • A magnitude 6.4 earthquake struck the Sunda Strait, Indonesia on May 4 at a depth of 45.0 km. The shock had a maximum intensity of V (Moderate).[38]
  • A magnitude 6.0 earthquake struck South Sulawesi, Indonesia on May 7 at a depth of 26.8 km. The shock had a maximum intensity of V (Moderate).[39]
  • A magnitude 6.0 earthquake struck Chubut Province, Argentina on May 8 at a depth of 156.2 km.[40]
  • A magnitude 6.2 earthquake struck Burdur Province, Turkey on May 12 at a depth of 22.5 km. The shock had a maximum intensity of V (Moderate).[41] 100 people died and at least 101 were injured. Major damage was caused.[42]
  • A magnitude 6.7 earthquake struck Pastaza Province, Ecuador on May 17 at a depth of 171.6 km.[43]
  • A magnitude 6.0 earthquake struck La Rioja Province, Argentina on May 18 at a depth of 85.0 km.[44]
  • A magnitude 7.0 earthquake struck Magadan Oblast, Russia on May 18 at a depth of 10.0 km.[45]
  • A magnitude 6.9 earthquake struck Bingol Province, Turkey on May 22 at a depth of 10.0 km. The shock had a maximum intensity of VIII (Severe).[46] 1,000 people died and at least 51 were injured. Damage costs were around $5 million (1971 rate).[47]
  • A magnitude 6.1 earthquake struck off the southeast coast of Kyushu, Japan on May 25 at a depth of 30.0 km.[48]
  • A magnitude 6.2 earthquake struck off the southeast coast of Kyushu, Japan on May 26 at a depth of 51.1 km.[49]
  • A magnitude 6.0 earthquake struck off the southeast coast of Kyushu, Japan on May 29 at a depth of 35.0 km.[50]
  • A magnitude 6.3 earthquake struck Kachin State, Myanmar on May 30 at a depth of 15.0 km. The shock had a maximum intensity of VIII (Severe).[51]
  • A magnitude 6.1 aftershock struck Kachin State, Myanmar on May 31 at a depth of 20.0 km. The shock had a maximum intensity of VIII (Severe).[52]

June
June
Strongest magnitude6.8 Mw , United States
Deadliest2 events each resulted in 1 death.
Total fatalities2
Number by magnitude
8.0−8.90
7.0−7.90
6.0−6.95
5.0−5.91
  • A magnitude 6.5 earthquake struck off the south coast of the Dominican Republic on June 11 at a depth of 35.0 km. The shock had a maximum intensity of V (Moderate).[53] At least 51 people were injured and some damage was reported.[54]
  • A magnitude 6.8 earthquake struck the Rat Islands, Alaska on June 11 at a depth of 25.0 km.[55]
  • A magnitude 6.0 earthquake struck Amur Oblast, Russia on June 14 at a depth of 10.0 km.[56]
  • A magnitude 6.0 earthquake struck western Xinjiang Province, China on June 15 at a depth of 11.9 km. The shock had a maximum intensity of IV (Light).[57]
  • A magnitude 5.2 earthquake struck Central Java, Indonesia on June 16 at a depth of 35.0 km. 1 person died and another 6 people were injured. 1,377 homes were damaged.[58]
  • A magnitude 6.3 earthquake struck Antofagasta Region, Chile on June 17 at a depth of 91.7 km. The shock had a maximum intensity of VII (Very strong).[59] 1 person died and some damage was caused.[60]

July
July
Strongest magnitude8.1 Mw , Papua New Guinea
Deadliest7.8 Mw , Chile
83 deaths
Total fatalities89
Number by magnitude
8.0−8.92
7.0−7.94
6.0−6.99
5.0−5.91
  • A magnitude 6.1 earthquake struck northeast of Masbate Island, Philippines on July 2 at a depth of 25.0 km. The shock had a maximum intensity of VI (Strong).[61]
  • A magnitude 7.8 earthquake struck Valparaiso Region, Chile on July 9 at a depth of 60.3 km. The shock had a maximum intensity of VI (Strong).[62] 83 people were killed and 447 injured. Extensive damage was reported with costs of around $236 million (1971 rate).[63]
  • A magnitude 6.4 aftershock struck off the coast of Valparaiso Region, Chile on July 11 at a depth of 35.0 km. The shock had a maximum intensity of VI (Strong).[64]
  • A magnitude 8.0 earthquake struck southeast of New Ireland (island), Papua New Guinea on July 14 at a depth of 40.0 km. The shock had a maximum intensity of VIII (Severe). This was part of a doublet as another large event struck later in the month. To minimise cluttering only aftershocks greater than magnitude 6.5 will be noted.[65] 2 people were killed by the earthquake. Another died in a tsunami which followed. 5 people were injured. Some damage was reported.[66][67]
  • A magnitude 6.5 aftershock struck southeast of New Ireland (island), Papua New Guinea on July 14 at a depth of 40.0 km.[68]
  • A magnitude 5.2 earthquake struck Parma, Italy on July 15 at a depth of 7.0 km. 2 people died and some damage was reported.[69]
  • A magnitude 6.6 aftershock struck southeast of New Ireland (island), Papua New Guinea on July 18 at a depth of 47.5 km. The shock had a maximum intensity of V (Moderate).[70]
  • A magnitude 7.0 aftershock struck southeast of New Ireland (island), Papua New Guinea on July 19 at a depth of 35.0 km. The shock had a maximum intensity of VI (Strong).[71]
  • A magnitude 6.3 earthquake struck West New Britain Province, Papua New Guinea on July 19 at a depth of 10.0 km. The shock had a maximum intensity of VII (Very strong).[72]
  • A magnitude 6.4 earthquake struck northeast of Masbate Island, Philippines on July 25 at a depth of 40.0 km. The shock had a maximum intensity of VII (Very strong).[73]
  • A magnitude 8.1 earthquake struck southeast of New Ireland (island), Papua New Guinea on July 26 at a depth of 40.0 km. The shock had a maximum intensity of VIII (Severe). This was the second part of the doublet as another magnitude 8.0 event struck 12 days earlier. To minimise cluttering only aftershocks greater than magnitude 6.5 will be noted.[74] Some damage was reported in the area due to a tsunami.[75]
  • A magnitude 6.0 earthquake struck southern Xinjiang Province, China on July 26 at a depth of 20.0 km. The shock had a maximum intensity of V (Moderate).[76]
  • A magnitude 6.6 aftershock struck off the east coast of New Britain, Papua New Guinea on July 26 at a depth of 40.0 km.[77]
  • A magnitude 7.0 aftershock struck off the east coast of New Britain, Papua New Guinea on July 26 at a depth of 40.0 km.[78]
  • A magnitude 7.4 earthquake struck Loreto Region, Peru on July 27 at a depth of 120.0 km. The shock had a maximum intensity of VII (Very strong).[79] 1 person was killed and at least 51 were injured. Some damage was caused.[80]
  • A magnitude 6.6 aftershock struck south of New Ireland (island), Papua New Guinea on July 27 at a depth of 40.0 km. The shock had a maximum intensity of V (Moderate).[81]
  • A magnitude 6.5 aftershock struck south of New Ireland (island), Papua New Guinea on July 28 at a depth of 24.5 km. The shock had a maximum intensity of VI (Strong).[82]

August
August
Strongest magnitude7.1 Mw , Japan
Deadliest2 events caused 1 death each.
Total fatalities2
Number by magnitude
8.0−8.90
7.0−7.91
6.0−6.95
5.0−5.92
  • A magnitude 7.1 earthquake struck off the south coast of Hokkaido, Japan on August 2 at a depth of 54.8 km. The shock had a maximum intensity of VI (Strong).[83] Some damage was caused.[84]
  • A magnitude 5.6 earthquake struck Mazandaran Province, Iran on August 9 at a depth of 20.0 km.[85] 1 person died and some damage was caused.[86]
  • A magnitude 6.5 earthquake struck off the west coast of Bougainville Island, Papua New Guinea on August 9 at a depth of 64.5 km.[87]
  • A magnitude 6.6 earthquake struck Fiji on August 14 at a depth of 25.0 km.[88]
  • A magnitude 6.5 earthquake struck Fiji on August 14 at a depth of 25.0 km. This came around a minute after the previous event.[89]
  • A magnitude 5.7 earthquake struck Sichuan Province, China on August 16 at a depth of 20.0 km.[90] At least 1 person died and a few homes were destroyed.[91]
  • A magnitude 6.3 earthquake struck off the east coast of Taiwan on August 19 at a depth of 25.6 km.[92]
  • A magnitude 6.5 earthquake struck off the north coast of mainland Papua New Guinea on August 23 at a depth of 10.0 km.[93]

September
September
Strongest magnitude7.3 Mw , Russia
Total fatalities0
Number by magnitude
8.0−8.90
7.0−7.92
6.0−6.98
5.0−5.90
  • A magnitude 7.3 earthquake struck southwest of Sakhalin Island, Russia on September 5 at a depth of 18.1 km. The shock had a maximum intensity of VI (Strong).[94] Some damage was caused.[95]
  • A magnitude 6.1 aftershock struck southwest of Sakhalin Island, Russia on September 6 at a depth of 19.2 km.[96]
  • A magnitude 6.8 aftershock struck southwest of Sakhalin Island, Russia on September 8 at a depth of 17.5 km. The shock had a maximum intensity of VI (Strong).[97]
  • A magnitude 6.5 aftershock struck southwest of Sakhalin Island, Russia on September 8 at a depth of 20.0 km.[98]
  • A magnitude 6.0 earthquake struck Tonga on September 10 at a depth of 20.0 km.[99]
  • A magnitude 7.0 earthquake struck the Banda Sea, Indonesia on September 16 at a depth of 131.0 km.[100]
  • A magnitude 6.8 earthquake struck Morobe Province, Papua New Guinea on September 25 at a depth of 110.8 km. The shock had a maximum intensity of V (Moderate).[101] Some damage was caused.[102]
  • A magnitude 6.6 aftershock struck southwest of Sakhalin Island, Russia on September 27 at a depth of 18.4 km.[103]
  • A magnitude 6.5 earthquake struck the Gulf of California, Mexico on September 30 at a depth of 15.0 km. The shock had a maximum intensity of VI (Strong).[104]
  • A magnitude 6.0 earthquake struck Khabarovsk Krai, Russia on September 30 at a depth of 15.0 km.[105]

October
October
Strongest magnitude6.8 2 events reached this magnitude.
Deadliest5.5 Mw , Peru
5 deaths
Total fatalities6
Number by magnitude
8.0−8.90
7.0−7.90
6.0−6.99
5.0−5.91
  • A magnitude 6.0 earthquake struck New Ireland (island), Papua New Guinea on October 1 at a depth of 20.0 km.[106]
  • A magnitude 6.0 earthquake struck west of Bougainville Island, Papua New Guinea on October 3 at a depth of 55.0 km.[107]
  • A magnitude 6.7 earthquake struck east of Vanuatu on October 3 at a depth of 10.0 km.[108]
  • A magnitude 6.8 earthquake struck west of Bougainville Island, Papua New Guinea on October 4 at a depth of 45.0 km. The shock had a maximum intensity of VI (Strong).[109]
  • A magnitude 5.5 earthquake struck Apurimac Region, Peru on October 15 at a depth of 35.0 km. The shock had a maximum intensity of IV (Light).[110] 5 people were killed and major damage was reported.[111]
  • A magnitude 6.6 earthquake struck south of the Northern Mariana Islands on October 23 at a depth of 21.6 km.[112]
  • A magnitude 6.5 earthquake struck south of the Northern Mariana Islands on October 24 at a depth of 25.0 km.[113]
  • A magnitude 6.8 earthquake struck Vanuatu on October 27 at a depth of 45.0 km. The shock had a maximum intensity of V (Moderate).[114] 1 person was killed and at least 51 were injured. Major damage was reported.[115]
  • A magnitude 6.7 earthquake struck Vanuatu on October 28 at a depth of 35.0 km.[116]
  • A magnitude 6.2 earthquake struck off the east coast of Taiwan on October 30 at a depth of 35.0 km.[117]

November
November
Strongest magnitude7.3 Mw , Russia
Total fatalities0
Number by magnitude
8.0−8.90
7.0−7.92
6.0−6.92
5.0−5.90
  • A magnitude 6.2 earthquake struck Hormozgan Province, Iran on November 8 at a depth of 20.0 km. The shock had a maximum intensity of VII (Very strong).[118]
  • A magnitude 6.5 earthquake struck south of Fiji on November 20 at a depth of 543.1 km.[119]
  • A magnitude 7.1 earthquake struck the Santa Cruz Islands, Solomon Islands on November 21 at a depth of 113.1 km. The shock had a maximum intensity of VII (Very strong).[120]
  • A magnitude 7.3 earthquake struck off the east coast of Kamchatka, Russia on November 24 at a depth of 125.0 km. The shock had a maximum intensity of VII (Very strong).[121]

December
December
Strongest magnitude7.6 Mw , Russia
Total fatalities0
Number by magnitude
8.0−8.90
7.0−7.91
6.0−6.95
5.0−5.90
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References
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  2. "M 7.1 - southern Mid-Atlantic Ridge". United States Geological Survey. January 3, 1971. Retrieved June 29, 2017.
  3. "M 7.7 - Papua, Indonesia". United States Geological Survey. January 10, 1971. Retrieved June 29, 2017.
  4. "Significant Earthquake: INDONESIA: NEW GUINEA: IRIAN JAYA:DJAJAPURA,SENTANI". National Geophysical Data Center. January 10, 1971. Retrieved June 29, 2017.
  5. "M 6.6 - Papua, Indonesia". United States Geological Survey. January 10, 1971. Retrieved June 29, 2017.
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  7. "M 6.0 - Papua, Indonesia". United States Geological Survey. January 10, 1971. Retrieved June 29, 2017.
  8. "M 6.2 - Papua, Indonesia". United States Geological Survey. January 10, 1971. Retrieved June 29, 2017.
  9. "M 6.0 - Papua, Indonesia". United States Geological Survey. January 10, 1971. Retrieved June 29, 2017.
  10. "M 6.4 - Andreanof Islands, Aleutian Islands, Alaska". United States Geological Survey. January 25, 1971. Retrieved June 29, 2017.
  11. "M 6.9 - Sea of Okhotsk". United States Geological Survey. January 29, 1971. Retrieved June 29, 2017.
  12. "M 7.0 - Nias region, Indonesia". United States Geological Survey. February 4, 1971. Retrieved June 29, 2017.
  13. "Significant Earthquake: INDONESIA: NATAL, SIBOLGA, TARUTUNG, PASAMAN". National Geophysical Data Center. February 4, 1971. Retrieved June 29, 2017.
  14. "Significant Earthquake: ITALY: TUSCANIA". National Geophysical Data Center. February 6, 1971. Retrieved June 29, 2017.
  15. "M 7.0 - Andreanof Islands, Aleutian Islands, Alaska". United States Geological Survey. February 7, 1971. Retrieved June 29, 2017.
  16. "M 7.0 - South Shetland Islands". United States Geological Survey. February 8, 1971. Retrieved June 29, 2017.
  17. "M 6.6 - 10km SSW of Agua Dulce, CA". United States Geological Survey. February 9, 1971. Retrieved June 29, 2017.
  18. "Significant Earthquake: CALIFORNIA: SAN FERNANDO". National Geophysical Data Center. February 9, 1971. Retrieved June 29, 2017.
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  21. "M 6.5 - south of the Fiji Islands". United States Geological Survey. February 15, 1971. Retrieved July 1, 2017.
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  26. "M 6.2 - Jan Mayen Island region". United States Geological Survey. March 23, 1971. Retrieved July 1, 2017.
  27. "M 6.2 - Kyrgyzstan-Xinjiang border region". United States Geological Survey. March 23, 1971. Retrieved July 1, 2017.
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  29. "M 6.1 - near the east coast of Honshu, Japan". United States Geological Survey. April 4, 1971. Retrieved July 1, 2017.
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  32. "M 6.1 - southern Iran". United States Geological Survey. April 12, 1971. Retrieved July 1, 2017.
  33. "Significant Earthquake: IRAN: TAZARJ,BARGHANY,MADANUIYEH,BARAFTAB,DARAGAH". National Geophysical Data Center. April 12, 1971. Retrieved July 1, 2017.
  34. "M 6.4 - China-Laos border region". United States Geological Survey. April 28, 1971. Retrieved July 1, 2017.
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  38. "M 6.4 - Sunda Strait, Indonesia". United States Geological Survey. May 4, 1971. Retrieved July 1, 2017.
  39. "M 6.0 - Sulawesi, Indonesia". United States Geological Survey. May 7, 1971. Retrieved July 2, 2017.
  40. "M 6.0 - Chubut, Argentina". United States Geological Survey. May 8, 1971. Retrieved July 2, 2017.
  41. "M 6.2 - western Turkey". United States Geological Survey. May 12, 1971. Retrieved July 2, 2017.
  42. "Significant Earthquake: TURKEY: BURDUR". National Geophysical Data Center. May 12, 1971. Retrieved July 2, 2017.
  43. "M 6.7 - Ecuador". United States Geological Survey. May 17, 1971. Retrieved July 2, 2017.
  44. "M 6.0 - La Rioja, Argentina". United States Geological Survey. May 18, 1971. Retrieved July 2, 2017.
  45. "M 7.0 - Magadanskaya Oblast', Russia". United States Geological Survey. May 18, 1971. Retrieved July 2, 2017.
  46. "M 6.9 - eastern Turkey". United States Geological Survey. May 22, 1971. Retrieved July 2, 2017.
  47. "Significant Earthquake: TURKEY: BINGOL". National Geophysical Data Center. May 22, 1971. Retrieved July 2, 2017.
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  51. "M 6.3 - Myanmar". United States Geological Survey. May 30, 1971. Retrieved July 2, 2017.
  52. "M 6.1 - Myanmar". United States Geological Survey. May 31, 1971. Retrieved July 2, 2017.
  53. "M 6.5 - Dominican Republic region". United States Geological Survey. June 11, 1971. Retrieved July 3, 2017.
  54. "Significant Earthquake: DOMINICAN REPUBLIC: SANTO DOMINGO". National Geophysical Data Center. June 11, 1971. Retrieved July 3, 2017.
  55. "M 6.8 - Rat Islands, Aleutian Islands, Alaska". United States Geological Survey. June 11, 1971. Retrieved July 3, 2017.
  56. "M 6.0 - Amurskaya Oblast', Russia". United States Geological Survey. June 14, 1971. Retrieved July 3, 2017.
  57. "M 6.0 - Kyrgyzstan-Xinjiang border region". United States Geological Survey. June 15, 1971. Retrieved July 3, 2017.
  58. "Significant Earthquake: INDONESIA: JAVA: BUARAN,BANTAR KAWSUN,JIPANG". National Geophysical Data Center. June 16, 1971. Retrieved July 3, 2017.
  59. "M 6.3 - Antofagasta, Chile". United States Geological Survey. June 17, 1971. Retrieved July 3, 2017.
  60. "Significant Earthquake: CHILE: CATALINA, ANTOFAGASTA". National Geophysical Data Center. June 17, 1971. Retrieved July 3, 2017.
  61. "M 6.1 - Masbate region, Philippines". United States Geological Survey. July 2, 1971. Retrieved July 3, 2017.
  62. "M 7.8 - Valparaiso, Chile". United States Geological Survey. July 9, 1971. Retrieved July 3, 2017.
  63. "Significant Earthquake: CHILE: CENTRAL". National Geophysical Data Center. July 9, 1971. Retrieved July 3, 2017.
  64. "M 6.4 - offshore Valparaiso, Chile". United States Geological Survey. July 11, 1971. Retrieved July 3, 2017.
  65. "M 8.0 - New Ireland region, Papua New Guinea". United States Geological Survey. July 14, 1971. Retrieved July 3, 2017.
  66. "Significant Earthquake: PAPUA NEW GUINEA: NEW IRELAND: BOUGAINVILLE". National Geophysical Data Center. July 14, 1971. Retrieved July 3, 2017.
  67. "Tsunami Event: SOLOMON SEA". National Geophysical Data Center. July 14, 1971. Retrieved July 3, 2017.
  68. "M 6.5 - New Ireland region, Papua New Guinea". United States Geological Survey. July 14, 1971. Retrieved July 3, 2017.
  69. "Significant Earthquake: ITALY: PARMA". National Geophysical Data Center. July 15, 1971. Retrieved July 4, 2017.
  70. "M 6.6 - New Ireland region, Papua New Guinea". United States Geological Survey. July 18, 1971. Retrieved July 4, 2017.
  71. "M 7.0 - New Ireland region, Papua New Guinea". United States Geological Survey. July 19, 1971. Retrieved July 4, 2017.
  72. "M 6.3 - New Britain region, Papua New Guinea". United States Geological Survey. July 19, 1971. Retrieved July 4, 2017.
  73. "M 6.4 - Masbate region, Philippines". United States Geological Survey. July 25, 1971. Retrieved July 4, 2017.
  74. "M 8.1 - New Ireland region, Papua New Guinea". United States Geological Survey. July 26, 1971. Retrieved July 4, 2017.
  75. "Tsunami Event: SOLOMON SEA". National Geophysical Data Center. July 26, 1971. Retrieved July 4, 2017.
  76. "M 6.0 - southern Xinjiang, China". United States Geological Survey. July 26, 1971. Retrieved July 4, 2017.
  77. "M 6.6 - New Britain region, Papua New Guinea". United States Geological Survey. July 26, 1971. Retrieved July 4, 2017.
  78. "M 7.0 - New Britain region, Papua New Guinea". United States Geological Survey. July 26, 1971. Retrieved July 4, 2017.
  79. "M 7.4 - Peru-Ecuador border region". United States Geological Survey. July 27, 1971. Retrieved July 4, 2017.
  80. "Significant Earthquake: PERU-ECUADOR: GUAYAQUIL". National Geophysical Data Center. July 27, 1971. Retrieved July 4, 2017.
  81. "M 6.6 - New Britain region, Papua New Guinea". United States Geological Survey. July 27, 1971. Retrieved July 4, 2017.
  82. "M 6.5 - New Britain region, Papua New Guinea". United States Geological Survey. July 28, 1971. Retrieved July 4, 2017.
  83. "M 7.1 - Hokkaido, Japan region". United States Geological Survey. August 2, 1971. Retrieved July 5, 2017.
  84. "Significant Earthquake: JAPAN TRENCH". National Geophysical Data Center. August 2, 1971. Retrieved July 5, 2017.
  85. "M 5.6 - northern Iran". United States Geological Survey. August 9, 1971. Retrieved July 5, 2017.
  86. "Significant Earthquake: IRAN: BABOL-KENAR". National Geophysical Data Center. August 9, 1971. Retrieved July 5, 2017.
  87. "M 6.5 - Bougainville region, Papua New Guinea". United States Geological Survey. August 9, 1971. Retrieved July 5, 2017.
  88. "M 6.6 - Fiji region". United States Geological Survey. August 14, 1971. Retrieved July 5, 2017.
  89. "M 6.5 - Fiji region". United States Geological Survey. August 14, 1971. Retrieved July 5, 2017.
  90. "M 5.7 - eastern Sichuan, China". United States Geological Survey. August 16, 1971. Retrieved July 5, 2017.
  91. "Significant Earthquake: CHINA: SICHUAN PROVINCE: MABIAN". National Geophysical Data Center. August 16, 1971. Retrieved July 5, 2017.
  92. "M 6.3 - Taiwan". United States Geological Survey. August 19, 1971. Retrieved July 5, 2017.
  93. "M 6.5 - near the north coast of New Guinea, Papua New Guinea". United States Geological Survey. August 23, 1971. Retrieved July 5, 2017.
  94. "M 7.3 - Sakhalin, Russia". United States Geological Survey. September 5, 1971. Retrieved July 6, 2017.
  95. "Significant Earthquake: RUSSIA: SAKHALIN, MONERON ISLAND". National Geophysical Data Center. September 5, 1971. Retrieved July 6, 2017.
  96. "M 6.1 - Sakhalin, Russia". United States Geological Survey. September 6, 1971. Retrieved July 6, 2017.
  97. "M 6.8 - Sakhalin, Russia". United States Geological Survey. September 8, 1971. Retrieved July 6, 2017.
  98. "M 6.5 - Sakhalin, Russia". United States Geological Survey. September 8, 1971. Retrieved July 6, 2017.
  99. "M 6.0 - Tonga". United States Geological Survey. September 10, 1971. Retrieved July 6, 2017.
  100. "M 7.0 - Banda Sea". United States Geological Survey. September 16, 1971. Retrieved July 6, 2017.
  101. "M 6.8 - eastern New Guinea region, Papua New Guinea". United States Geological Survey. September 25, 1971. Retrieved July 6, 2017.
  102. "Significant Earthquake: PAPUA NEW GUINEA: BISMARCK SEA". National Geophysical Data Center. September 25, 1971. Retrieved July 6, 2017.
  103. "M 6.6 - Sakhalin, Russia". United States Geological Survey. September 27, 1971. Retrieved July 6, 2017.
  104. "M 6.5 - Gulf of California". United States Geological Survey. September 30, 1971. Retrieved July 6, 2017.
  105. "M 6.0 - Khabarovskiy Kray, Russia". United States Geological Survey. September 30, 1971. Retrieved July 6, 2017.
  106. "M 6.0 - New Britain region, Papua New Guinea". United States Geological Survey. October 1, 1971. Retrieved July 10, 2017.
  107. "M 6.0 - Bougainville region, Papua New Guinea". United States Geological Survey. October 3, 1971. Retrieved July 10, 2017.
  108. "M 6.7 - Vanuatu region". United States Geological Survey. October 3, 1971. Retrieved July 10, 2017.
  109. "M 6.8 - Bougainville region, Papua New Guinea". United States Geological Survey. October 4, 1971. Retrieved July 10, 2017.
  110. "M 5.5 - central Peru". United States Geological Survey. October 15, 1971. Retrieved July 10, 2017.
  111. "Significant Earthquake: PERU: APURIMAC". National Geophysical Data Center. October 15, 1971. Retrieved July 10, 2017.
  112. "M 6.6 - south of the Mariana Islands". United States Geological Survey. October 23, 1971. Retrieved July 10, 2017.
  113. "M 6.5 - south of the Mariana Islands". United States Geological Survey. October 24, 1971. Retrieved July 10, 2017.
  114. "M 6.8 - Vanuatu". United States Geological Survey. October 27, 1971. Retrieved July 10, 2017.
  115. "Significant Earthquake: VANUATU ISLANDS: ESPIRITU SANTO, PORT VILA". National Geophysical Data Center. October 27, 1971. Retrieved July 10, 2017.
  116. "M 6.7 - Vanuatu". United States Geological Survey. October 28, 1971. Retrieved July 10, 2017.
  117. "M 6.2 - Taiwan". United States Geological Survey. October 30, 1971. Retrieved July 10, 2017.
  118. "M 6.2 - southern Iran". United States Geological Survey. November 8, 1971. Retrieved July 11, 2017.
  119. "M 6.5 - south of the Fiji Islands". United States Geological Survey. November 20, 1971. Retrieved July 11, 2017.
  120. "M 7.1 - Santa Cruz Islands". United States Geological Survey. November 21, 1971. Retrieved July 11, 2017.
  121. "M 7.3 - off the east coast of the Kamchatka Peninsula, Russia". United States Geological Survey. November 24, 1971. Retrieved July 11, 2017.
  122. "M 6.6 - east of the Kuril Islands". United States Geological Survey. December 2, 1971. Retrieved July 11, 2017.
  123. "M 6.3 - Bougainville region, Papua New Guinea". United States Geological Survey. December 4, 1971. Retrieved July 11, 2017.
  124. "M 6.1 - near the coast of Antofagasta, Chile". United States Geological Survey. December 8, 1971. Retrieved July 11, 2017.
  125. "M 6.5 - Bougainville region, Papua New Guinea". United States Geological Survey. December 11, 1971. Retrieved July 11, 2017.
  126. "M 7.6 - off the east coast of the Kamchatka Peninsula, Russia". United States Geological Survey. December 15, 1971. Retrieved July 11, 2017.
  127. "M 6.0 - New Britain region, Papua New Guinea". United States Geological Survey. December 30, 1971. Retrieved July 11, 2017.
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