| Sr. No. | Epicenter (Lat, Long) and Magnitude of Earthquake | Date | Enhancement or Depletion in TEC Prior to EQ | No of Satellite Passes Prior to EQ |
| 1 | Southeast of the Loyalty Island (22˚36'S, 170˚54'E) M 6.6 | 19/1/2009 | Enhancement 3, 9 and 12 days Figure 1(a) | Increase7, 6, 5 and 3days 1(d) |
| 2 | Izu Islands, Japan region (32˚48'N, 140˚36'E) M 6.6 | 12/8/2009 | Enhancement 2, 4, 6 and 7, Depletion 9 and 10 days 2(a) | Increase 7, 6, 4 and 2 days 2(d) |
| 3 | Ryukyu Islands, Japan (23˚30'N, 123˚30'E) M 6.7 | 17/8/2009 | No enhancement 3(a) | Increase 7 days 3(d) |
| 4 | Haiti (18˚24'N, 72˚30'W) M 7.0 | 12/1/2010 | Enhancement 2 and 3 days 4(a) | Increase 2, 3 and 5 days 4(d) |
| 5 | Liberatador O Higgins, Chile (34˚12'S, 71˚W) M 6.9 | 11/3/2010 | Enhancement 7 days 5(a) | Increase 7 days 5(d) |