A year of strong earthquakes
Each spike is a magnitude 5.5+ earthquake of the last twelve months (USGS ComCat); its height follows the magnitude, its colour the depth. Rings mark the strongest. Earthquakes outline the plate boundaries.
- < 70 km (shallow)
- 70–300 km (intermediate)
- > 300 km (deep)
Positions and magnitudes from the USGS catalogue; heights exaggerated. Base map: local NASA Blue Marble.
Show the data as a table
Show the data as a table
| # | M | Date | Place | Depth |
|---|---|---|---|---|
| 1 | 9.5 mw | 1960-05-22 | 1960 Great Chilean Earthquake (Valdivia Earthquake) | 25 km |
| 2 | 9.2 mw | 1964-03-28 | The 1964 Prince William Sound, Alaska Earthquake | 25 km |
| 3 | 9.1 mw | 2004-12-25 | 2004 Sumatra - Andaman Islands Earthquake | 30 km |
| 4 | 9.1 mww | 2011-03-11 | 2011 Great Tohoku Earthquake, Japan | 29 km |
| 5 | 9.0 mw | 1952-11-04 | 89 km ESE of Petropavlovsk-Kamchatsky, Russia | 22 km |
| 6 | 8.8 mw | 1906-01-31 | 1906 Ecuador-Colombia Earthquake | 20 km |
| 7 | 8.8 mww | 2010-02-27 | 2010 Maule, Chile Earthquake | 23 km |
| 8 | 8.8 mww | 2025-07-29 | 2025 Kamchatka Peninsula, Russia Earthquake | 35 km |
| 9 | 8.7 mw | 1965-02-04 | 1965 Western Aleutian Islands (Hawadax/Rat Islands) Earthquake | 30 km |
| 10 | 8.6 mw | 1946-04-01 | The 1946 Unimak Island, Alaska Earthquake | 15 km |
| # | Year | Place | M | Deaths |
|---|---|---|---|---|
| 1 | 1556 | CHINA: SHAANXI PROVINCE | 8.0 | 830,000 |
| 2 | 2010 | HAITI: PORT-AU-PRINCE tsunami | 7.0 | 316,000 |
| 3 | 115 | TURKEY: ANTAKYA (ANTIOCH) tsunami | 7.5 | 260,000 |
| 4 | 525 | TURKEY: ANTAKYA (ANTIOCH), SAMANDAG | 7.0 | 250,000 |
| 5 | 1976 | CHINA: NE: TANGSHAN | 7.5 | 242,769 |
| 6 | 1920 | CHINA: GANSU PROVINCE, SHANXI PROVINCE tsunami | 8.3 | 235,502 |
| 7 | 1139 | AZERBAIJAN: GYZNDZHA | — | 230,000 |
| 8 | 2004 | INDONESIA: SUMATRA: ACEH: OFF WEST COAST tsunami | 9.1 | 227,899 |
| 9 | 856 | IRAN: DAMGHAN, QUMIS | 7.9 | 200,000 |
| 10 | 893 | ARMENIA: DVIN; IRAN: ARDABIL | — | 150,000 |
| Date (UTC) | M | Place | Depth | Lat., lon. |
|---|---|---|---|---|
| 1939-08-23 03:36 | 6.2 mw | 44 km W of Pangai, Tonga | 35 km | -19.74, -174.77 |
| 1939-08-21 23:06 | 6.0 mw | 98 km E of Namie, Japan | 25 km | 37.64, 142.10 |
| 1939-08-21 14:19 | 6.1 mw | 286 km ESE of Attu Station, Alaska | 35 km | 51.76, 176.99 |
| 1939-08-20 06:17 | 6.2 ms | 102 km SSW of False Pass, Alaska | 75 km | 54.00, -164.00 |
| 1939-08-18 23:47 | 6.0 mw | 91 km SSE of Port-Vila, Vanuatu | 35 km | -18.50, 168.64 |
| 1939-08-18 21:16 | 6.5 mw | 104 km SSE of Port-Vila, Vanuatu | 55 km | -18.64, 168.60 |
| 1939-08-12 08:49 | 6.3 mw | 260 km E of Kuril’sk, Russia | 25 km | 45.11, 151.18 |
| 1939-08-01 23:46 | 6.2 mw | southern Mid-Atlantic Ridge | 10 km | -36.16, -16.05 |
| 1939-07-20 01:23 | 6.8 mw | Fiji region | 635 km | -21.13, -179.11 |
| 1939-07-18 02:26 | 6.6 mw | 252 km SW of Port McNeill, Canada | 15 km | 48.95, -129.52 |
| 1939-07-14 07:31 | 6.0 mw | 249 km WNW of Attu Station, Alaska | 15 km | 53.79, 169.79 |
| 1939-07-12 21:58 | 6.4 mw | 79 km SW of Abepura, Indonesia | 20 km | -3.04, 140.07 |
| 1939-07-12 19:08 | 6.0 mw | 59 km E of Shikotan, Russia | 35 km | 43.78, 147.46 |
| 1939-06-27 22:04 | 6.7 mw | 37 km E of Santiago, Philippines | 35 km | 7.22, 126.91 |
| 1939-06-22 18:19 | 6.4 mw | 8 km ENE of Swedru, Ghana | 15 km | 5.57, -0.62 |
| 1939-06-18 15:46 | 6.0 mw | 6 km WNW of Tucurrique, Costa Rica | 15 km | 9.88, -83.78 |
| 1939-06-12 03:05 | 6.0 mw | 220 km N of San Juan, Puerto Rico | 15 km | 20.45, -65.96 |
| 1939-06-02 02:33 | 6.4 mw | 117 km SE of Sarangani, Philippines | 35 km | 4.67, 126.22 |
| 1939-05-27 02:45 | 6.2 mw | 11 km SE of Kakching, India | 66 km | 24.41, 94.05 |
| 1939-05-26 16:50 | 6.2 mw | 122 km SSW of Abepura, Indonesia | 25 km | -3.59, 140.14 |
| 1939-05-26 08:40 | 6.1 mw | 36 km NNW of Ust’-Barguzin, Russia | 15 km | 53.70, 108.76 |
| 1939-05-17 17:30 | 6.6 mw | Volcano Islands, Japan region | 35 km | 23.10, 143.42 |
| 1939-05-16 06:20 | 6.2 mw | 49 km S of Hualien City, Taiwan | 25 km | 23.53, 121.60 |
| 1939-05-10 06:44 | 6.3 mw | 128 km W of Adak, Alaska | 35 km | 51.98, -178.50 |
| 1939-05-09 06:28 | 6.2 mw | 108 km SSW of Akhiok, Alaska | 25 km | 56.02, -154.76 |
| 1939-05-08 00:46 | 6.7 mw | 99 km SE of Senhora do Rosário, Portugal | 10 km | 37.20, -24.36 |
| 1939-05-06 16:00 | 6.3 mw | 3 km SSE of Mapulo, Philippines | 10 km | 13.70, 121.19 |
| 1939-05-06 05:00 | 6.4 mw | off the coast of Central America | 15 km | 5.20, -84.07 |
| 1939-05-02 12:14 | 7.2 mw | 92 km NNE of San Luis, Mexico | 10 km | 29.24, -113.51 |
| 1939-05-01 15:05 | 6.6 mw | 18 km WNW of Tenn?, Japan | 10 km | 39.98, 139.77 |
| 1939-05-01 04:58 | 7.2 mw | 28 km W of Tenn?, Japan | 10 km | 39.93, 139.64 |
| 1939-04-30 01:55 | 7.8 mw | 23 km SSE of Malango, Solomon Islands | 15 km | -9.88, 159.83 |
| 1939-04-23 15:23 | 6.2 mw | north of Ascension Island | 15 km | 0.19, -17.13 |
| 1939-04-21 03:29 | 7.0 mw | 155 km SSW of Sovetskaya Gavan’, Russia | 530 km | 47.64, 139.64 |
| 1939-04-20 21:06 | 6.2 mw | 80 km WSW of Te Anau, New Zealand | 35 km | -45.64, 166.74 |
| 1939-04-18 05:22 | 7.4 mw | Atacama, Chile | 35 km | -27.22, -70.88 |
| 1939-04-15 20:03 | 6.3 mw | Balleny Islands region | 15 km | -61.67, 150.40 |
| 1939-04-05 16:42 | 7.1 mw | 48 km SSW of Isangel, Vanuatu | 30 km | -19.92, 169.06 |
| 1939-04-04 10:11 | 6.1 mw | 53 km NNW of Port-Vila, Vanuatu | 35 km | -17.30, 168.09 |
| 1939-03-23 16:20 | 6.2 mw | Kermadec Islands region | 35 km | -28.47, -177.62 |
| 1939-03-22 07:21 | 6.2 mw | 133 km SE of Pangai, Tonga | 15 km | -20.64, -173.41 |
| 1939-03-22 03:45 | 6.1 mw | 83 km N of Lae, Papua New Guinea | 35 km | -5.98, 147.12 |
| 1939-03-21 01:11 | 7.5 mw | South Indian Ocean | 15 km | -1.27, 89.32 |
| 1939-03-20 03:22 | 6.7 mw | 13 km SSE of Nobeoka, Japan | 25 km | 32.48, 131.74 |
| 1939-03-08 21:58 | 6.3 mw | 56 km SW of Panguna, Papua New Guinea | 35 km | -6.67, 155.12 |
| 1939-03-07 01:54 | 6.1 mw | 120 km NNE of Finschhafen, Papua New Guinea | 35 km | -5.51, 148.15 |
| 1939-03-02 07:00 | 6.0 mw | 45 km E of Ambunti, Papua New Guinea | 35 km | -4.22, 143.23 |
| 1939-02-16 18:51 | 6.5 mw | 103 km ESE of Iwaki, Japan | 35 km | 36.87, 142.02 |
| 1939-02-09 15:30 | 6.1 mw | near the coast of Nicaragua | 15 km | 11.10, -86.32 |
| 1939-02-04 05:19 | 6.1 mw | 13 km WNW of Malango, Solomon Islands | 15 km | -9.66, 159.60 |
The USGS ComCat (ANSS) catalogue is read through the FDSN web service, one request per calendar year since 1900 for magnitudes ≥ 4.5; the last two years are re-read on each update because solutions are revised. Magnitudes are those published (mb, Ms, Mw, ml…) and are not converted; depth is the hypocentre depth in km.
Yearly counts are computed on the server from imported events of type “earthquake” (explosions and other types are kept but excluded from counts). Historical earthquakes and their tolls come from the NCEI/WDS significant earthquake database, dated to the year when the day is unknown.
- USGS ComCat earthquakes M ≥ 4.5 (FDSN event service)
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U.S. Geological Survey, Earthquake Hazards Program (2017). Advanced National Seismic System (ANSS) Comprehensive Catalog of Earthquake Events and Products. Accessed through the FDSN event web service.
· doi:10.5066/F7MS3QZH · source page ↗
Licence : U.S. Government work, public domain; cite USGS ANSS ComCat · retrieved on Nov 2, 2026 · SHA-256 b884f435dbf0… - NCEI/WDS Global Significant Earthquake Database
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National Geophysical Data Center / World Data Service (NGDC/WDS): NCEI/WDS Global Significant Earthquake Database. NOAA National Centers for Environmental Information.
· doi:10.7289/V5TD9V7K · source page ↗
Licence : U.S. Government work, public domain; cite NCEI/WDS · retrieved on Oct 30, 2026 · SHA-256 d5b49c593d3a…