| Location | Date UTC | Magnitude | Lat. | Long. | Reference | |
|---|---|---|---|---|---|---|
| 1. | Chile | 1960 05 22 | 9.5 | -38.24 | -73.05 | Kanamori, 1977 |
| 2. | Prince William Sound, Alaska | 1964 03 28 | 9.2 | 61.02 | -147.65 | Kanamori, 1977 |
| 3. | Off the West Coast of Northern Sumatra | 2004 12 26 | 9.1 | 3.30 | 95.78 | Park et al., 2005 |
| 4. | Kamchatka | 1952 11 04 | 9.0 | 52.76 | 160.06 | Kanamori, 1977 |
| 5. | Off the Coast of Ecuador | 1906 01 31 | 8.8 | 1.0 | -81.5 | Kanamori, 1977 |
| 6. | Rat Islands, Alaska | 1965 02 04 | 8.7 | 51.21 | 178.50 | Kanamori, 1977 |
| 7. | Northern Sumatra, Indonesia | 2005 03 28 | 8.6 | 2.08 | 97.01 | PDE |
| 8. | Assam - Tibet | 1950 08 15 | 8.6 | 28.5 | 96.5 | Kanamori, 1977 |
| 9. | Andreanof Islands, Alaska | 1957 03 09 | 8.6 | 51.56 | -175.39 | Johnson et al., 1994 |
| 10. | Southern Sumatra, Indonesia | 2007 09 12 | 8.5 | -4.438 | 101.367 | PDE |
| 11. | Banda Sea, Indonesia | 1938 02 01 | 8.5 | -5.05 | 131.62 | Okal and Reymond, 2003 |
| 12. | Kamchatka | 1923 02 03 | 8.5 | 54.0 | 161.0 | Kanamori, 1988 |
| 13. | Chile-Argentina Border | 1922 11 11 | 8.5 | -28.55 | -70.50 | Kanamori, 1977 |
| 14. | Kuril Islands | 1963 10 13 | 8.5 | 44.9 | 149.6 | Kanamori, 1977 |
Tuesday, October 6, 2009
Largest Earthquakes in the World Since 1900
Sunday, October 4, 2009
Can you predict earthquakes?
No.
Neither the Caltech nor USGS nor any other scientists have ever predicted a major earthquake. They do not know how, and they do not expect to know how any time in the foreseeable future. However based on scientific data, probabilities can be calculated for potential future earthquakes. For example, scientists estimate that over the next 30 years the probability of a major EQ occurring in the San Francisco Bay area is 67 percent and 60 percent in Southern California.
The USGS focuses their efforts on the long-term mitigation of earthquake hazards by helping to improve the safety of structures, rather than by trying to accomplish short term predictions.
Neither the Caltech nor USGS nor any other scientists have ever predicted a major earthquake. They do not know how, and they do not expect to know how any time in the foreseeable future. However based on scientific data, probabilities can be calculated for potential future earthquakes. For example, scientists estimate that over the next 30 years the probability of a major EQ occurring in the San Francisco Bay area is 67 percent and 60 percent in Southern California.
The USGS focuses their efforts on the long-term mitigation of earthquake hazards by helping to improve the safety of structures, rather than by trying to accomplish short term predictions.
Today's Earthquake Fact
Although both are sea waves, a tsunami and a tidal wave are two different unrelated phenomena. A tidal wave is a shallow water wave caused by the gravitational interactions between the Sun, Moon, and Earth. A tsunami is a sea wave caused by an underwater earthquake or landslide displacing the ocean water.
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