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. |
|---|---|---|---|---|
| 1940-10-01 19:38 | 6.4 mw | Macquarie Island region | 10 km | -58.74, 160.95 |
| 1940-10-01 08:42 | 6.2 mw | 33 km NW of Vallenar, Chile | 45 km | -28.36, -71.00 |
| 1940-09-30 09:13 | 6.1 mw | Kermadec Islands region | 85 km | -27.72, -177.47 |
| 1940-09-19 21:59 | 6.1 mw | 166 km WSW of Lorengau, Papua New Guinea | 35 km | -2.47, 145.84 |
| 1940-09-19 16:19 | 6.8 mw | southeast of the Loyalty Islands | 15 km | -23.36, 170.66 |
| 1940-09-12 11:17 | 6.6 mw | 75 km E of Kokopo, Papua New Guinea | 76 km | -4.45, 152.94 |
| 1940-09-08 08:15 | 6.0 mw | 191 km WNW of Attu Station, Alaska | 15 km | 53.35, 170.44 |
| 1940-09-03 12:40 | 6.2 mw | 100 km NE of Dêqên, China | 15 km | 30.49, 91.57 |
| 1940-08-26 03:00 | 6.0 mw | 219 km N of Puerto Ayora, Ecuador | 15 km | 1.24, -90.53 |
| 1940-08-24 11:31 | 6.0 mw | 106 km ESE of Hihifo, Tonga | 15 km | -16.45, -172.94 |
| 1940-08-22 01:27 | 7.0 mw | 203 km SSE of Unalaska, Alaska | 15 km | 52.16, -165.50 |
| 1940-08-20 15:29 | 6.3 mw | 38 km WNW of Kandrian, Papua New Guinea | 35 km | -6.03, 149.25 |
| 1940-08-13 13:36 | 7.0 mw | 74 km NW of Hiratach?, Japan | 10 km | 35.96, 132.29 |
| 1940-08-11 14:46 | 6.3 mw | 136 km SW of Asau, Samoa | 15 km | -14.49, -173.42 |
| 1940-08-05 07:55 | 6.0 mw | 58 km SSW of Yingkou, China | 15 km | 40.15, 122.06 |
| 1940-08-01 13:08 | 7.5 mw | 137 km WSW of Rishiri Town, Japan | 15 km | 44.56, 139.68 |
| 1940-07-29 22:12 | 6.2 mw | 15 km N of Saraykent, Turkey | 15 km | 39.83, 35.48 |
| 1940-07-27 11:32 | 6.8 mw | 29 km SSW of Nueva Concepción, Guatemala | 35 km | 13.96, -91.42 |
| 1940-07-21 13:38 | 6.4 mw | Celebes Sea | 15 km | 2.28, 120.91 |
| 1940-07-19 23:53 | 6.4 mw | 111 km ENE of Hihifo, Tonga | 15 km | -15.67, -172.80 |
| 1940-07-19 02:47 | 6.2 mw | 86 km ESE of Attu Station, Alaska | 15 km | 52.43, 174.26 |
| 1940-07-13 14:47 | 6.4 mw | south of Panama | 15 km | 7.90, -82.15 |
| 1940-07-06 01:40 | 6.1 mw | 13 km W of Barrouallie, Saint Vincent and the Grenadines | 120 km | 13.23, -61.40 |
| 1940-07-02 17:08 | 6.3 mw | 139 km WNW of Hihifo, Tonga | 15 km | -15.36, -174.94 |
| 1940-07-01 23:36 | 6.0 mw | 136 km SE of Katsuura, Japan | 15 km | 34.34, 141.44 |
| 1940-06-26 06:00 | 6.0 mw | 80 km SSW of Bengkulu, Indonesia | 35 km | -4.49, 102.02 |
| 1940-06-18 16:39 | 6.2 mw | 69 km S of Attu Station, Alaska | 25 km | 52.23, 173.34 |
| 1940-06-17 08:26 | 6.4 mw | 71 km ENE of Honomu, Hawaii | 15 km | 20.12, -154.49 |
| 1940-06-12 12:59 | 6.2 mw | near the east coast of Honshu, Japan | 15 km | 35.18, 141.24 |
| 1940-06-12 10:48 | 6.2 mw | west of Macquarie Island | 15 km | -52.30, 141.66 |
| 1940-06-11 07:42 | 6.1 mw | 38 km N of Likisá, Timor Leste | 25 km | -8.24, 125.34 |
| 1940-06-05 10:01 | 6.5 mw | 76 km SSW of Fort McPherson, Canada | 10 km | 66.83, -135.69 |
| 1940-06-03 17:05 | 6.3 mw | 45 km SSW of Campo Pesquero el Colorado, Mexico | 15 km | 25.38, -109.49 |
| 1940-06-02 10:37 | 6.2 mw | 101 km SW of Adak, Alaska | 35 km | 51.26, -177.72 |
| 1940-05-30 23:41 | 6.1 mw | 111 km NE of Hihifo, Tonga | 25 km | -15.20, -173.11 |
| 1940-05-29 00:57 | 6.3 mw | 67 km SSW of Fort McPherson, Canada | 15 km | 66.85, -135.24 |
| 1940-05-28 08:40 | 6.6 mw | 180 km W of Abepura, Indonesia | 35 km | -2.31, 139.03 |
| 1940-05-24 20:57 | 6.7 mw | 10 km SSW of Huacho, Peru | 45 km | -11.20, -77.64 |
| 1940-05-24 15:33 | 8.2 mw | 21 km SE of Huacho, Peru | 45 km | -11.22, -77.44 |
| 1940-05-23 05:01 | 6.0 mw | 151 km SSE of Attu Station, Alaska | 15 km | 51.52, 173.69 |
| 1940-05-19 17:16 | 6.1 mw | 203 km N of Chokwé, Mozambique | 15 km | -22.70, 32.77 |
| 1940-05-19 03:36 | 6.9 mw | The 1940 Imperial Valley, California Earthquake | 6 km | 32.84, -115.38 |
| 1940-05-11 12:54 | 6.4 mw | 67 km S of Attu Station, Alaska | 25 km | 52.25, 173.35 |
| 1940-05-07 21:23 | 6.0 mw | 15 km SE of Khashuri, Georgia | 15 km | 41.90, 43.74 |
| 1940-05-05 01:03 | 6.3 mw | 51 km W of Pimentel, Peru | 15 km | -6.90, -80.40 |
| 1940-05-04 20:01 | 6.4 mw | 57 km SW of Neysh?b?r, Iran | 15 km | 35.86, 58.33 |
| 1940-05-04 06:24 | 6.3 mw | 80 km S of Attu Station, Alaska | 25 km | 52.14, 172.97 |
| 1940-04-27 09:33 | 6.3 mw | central Mid-Atlantic Ridge | 15 km | 0.47, -20.31 |
| 1940-04-27 08:35 | 6.3 mw | 157 km ESE of Lata, Solomon Islands | 15 km | -11.44, 167.05 |
| 1940-04-19 13:39 | 6.1 mw | 148 km S of Severo-Kuril’sk, Russia | 35 km | 49.34, 156.25 |
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)
-
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…