This is a list of earthquakes in 1987. Only earthquakes of magnitude 6 or above are included, unless they result in damage or casualties, or are notable for some other reason. All dates are listed according to UTC time.
.svg) Approximate epicenters of the earthquakes in 1987 | |
| Strongest magnitude | 7.9 Mw  United States |
|---|---|
| Deadliest | 7.1 Mw  Ecuador1,000 deaths |
| Total fatalities | 1,090 |
| Number by magnitude | |
| 9.0+ | 0 |
← 1986 1988 → | |
By death toll
| Rank | Magnitude | Deaths | Location | MMI | Depth (km) | Date |
|---|---|---|---|---|---|---|
| 1 | 7.1 | 1,000 | Ecuador, Napo | IX (Violent) | 10.0 | March 6 |
| 2 | 6.7 | 37 |  Indonesia, East Nusa Tenggara | VII (Very strong) | 33.0 | November 26 |
By magnitude
| Rank | Magnitude | Deaths | Location | Max Intensity | Depth (km) | Date (MM-DD) |
|---|---|---|---|---|---|---|
| 1 | 7.9 | 0 | United States, Alaska offshore | VI (Strong) | 10.0 | November 30 |
| 2 | 7.6 | 1 |  Chile, Antofagasta | VI (Strong) | 62.3 | March 5 |
| 2 | 7.4 | 0 |  Papua New Guinea, West New Britain offshore | VIII (Severe) | 47.8 | October 16 |
| 2 | 7.4 | 0 |  Australia, Macquarie Island offshore | I (Not felt) | 33.0 | September 3 |
| 2 | 7.4 | 3 | Papua New Guinea, Morobe offshore | VII (Very strong) | 54.9 | February 8 |
| 6 | 7.3 | 0 |  Tonga, Vava'u offshore | IV (Light) | 16.0 | October 6 |
| 7 | 7.2 | 5 | Chile, Tarapacá | VII (Very strong) | 69.7 | September 8 |
| 7 | 7.2 | 1,000 | Ecuador, Napo | IX (Violent) | 10.0 | March 6 |
| 9 | 7.1 | 0 | Indonesia, Banda Sea offshore | V (Moderate) | 67.3 | June 17 |
| 10 | 7.0 | 0 | Papua New Guinea, Bougainville offshore | V (Moderate) | 24.7 | October 12 |
| 10 | 7.0 | 0 |  Argentina, Jujuy | IV (Light) | 248.7 | April 1 |
| 10 | 7.0 | 0 | Chile, Antofagasta offshore | IV (Light) | 34.8 | March 5 |
| 10 | 7.0 | 0 | .svg){kind=small} South Georgia and the South Sandwich Islands, South Sandwich Islands offshore | I (Not felt) | 47.6 | January 30 |
By month
January
| Strongest magnitude | 7.0 Mw South Georgia and the South Sandwich Islands |
|---|---|
| Deadliest | 4.2 Mw .svg){kind=small} Italy2 deaths |
| Total fatalities | 3 |
| Number by magnitude | |
| 8.0–8.9 | 0 |
| 7.0–7.9 | 1 |
| 6.0–6.9 | 12 |
| Date | Country and location | Mw | Depth (km) | MMI | Notes | Casualties | |
|---|---|---|---|---|---|---|---|
| Dead | Injured | ||||||
| 2[1] |  Egypt, Ismailia | 5.0 | 24.1 | V | Minor damage occurred in Ismailia. | - | - |
| 3[2] | Papua New Guinea, Bismarck Sea offshore | 6.2 | 5.0 | I | This two similarly sized earthquakes occurring an hour apart can be considered a doublet earthquake. | - | - |
| 3[3] | Papua New Guinea, Bismarck Sea offshore | 6.3 | 5.0 | I | - | - | |
| 3[4] |  Vanuatu, Sanma | 6.7 | 14.5 | VII | - | - | - |
| 4[5] |  Panama, Chiriquí offshore | 6.3 | 10.0 | I | - | - | - |
| 5[6] | United States, Alaska offshore | 6.8 | 33.0 | V | - | - | - |
| 5[7] |  China, Xinjiang | 5.7 | 16.5 | VII | Several people were injured and damage occurred in Baicheng. | - | Several |
| 7[8] |  Albania, Korçë | 5.0 | 13.5 | VI | Damage occurred in Ersekë and Gostivisht. | - | - |
| 9[9] |  Japan, Iwate | 6.6 | 66.7 | VI | Minor damage occurred in Morioka and Ōfunato. | - | - |
| 9[10] | Tonga, Tongatapu offshore | 6.5 | 33.0 | I | - | - | - |
| 11[11] |  Iran, Fars | 4.9 | 9.7 | VI | 300 houses were damaged in Doshman Ziari. | - | - |
| 13[12] |  Colombia, Chocó offshore | 6.0 | 10.0 | II | - | - | - |
| 13[13] | southern East Pacific Rise | 6.0 | 10.0 | I | - | - | - |
| 14[14] | Japan, Hokkaido | 6.8 | 102.0 | VI | Six people were injured. | - | 6 |
| 15[15] |  El Salvador, La Libertad | 4.0 | 10.0 | IV | This is an aftershock of the 1986 San Salvador earthquake. Additional damage was caused, with many structures previously damaged by the October event collapsed. | - | - |
| 22[16] | Italy, Tuscany offshore | 4.2 | 21.6 | IV | Two people died of heart attacks. | 2 | - |
| 24[17] | China, Xinjiang | 6.2 | 28.9 | VII | 417 houses were damaged in Wushi. | - | - |
| 26[18] |  Algeria, Chlef | 4.9 | 10.0 | VI | One person was killed, another seven were injured, and 629 houses were damaged in Mohammadia. | 1 | 7 |
| 30[19] | South Georgia and the South Sandwich Islands, South Sandwich Islands offshore | 7.0 | 47.6 | I | - | - | - |
February
| Strongest magnitude | 7.4 Mw Papua New Guinea |
|---|---|
| Deadliest | 7.4 Mw Papua New Guinea 3 deaths |
| Total fatalities | 3 |
| Number by magnitude | |
| 8.0–8.9 | 0 |
| 7.0–7.9 | 1 |
| 6.0–6.9 | 18 |
| Date | Country and location | Mw | Depth (km) | MMI | Notes | Casualties | |
|---|---|---|---|---|---|---|---|
| Dead | Injured | ||||||
| 6[20] | Japan, Fukushima offshore | 6.4 | 35.6 | IV | It is a foreshock of the 6.8 quake an hour later. | - | - |
| 6[21] | Japan, Fukushima offshore | 6.8 | 47.7 | V | Small tsunamis were observed, the largest having 12 cm at Onahama. | - | - |
| 7[22] | Papua New Guinea, Morobe offshore | 6.2 | 27.4 | VI | It is a foreshock of the 7.4 event two days later. | - | - |
References
This article incorporates public domain material from the USGS
Notes
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