The 2004 Indian Ocean earthquake. There are 7 earthquakes on this map as of 17:00 UTC, December 26, 2004.

The original image was generated by the USGS and was found at https://earthquake.usgs.gov/recenteqsww/Maps/10/95_5.html -- Toytoy 17:40, Dec 26, 2004 (UTC).

The original image:

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en:User:Toytoy's modification:

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Note: many of the magnitudes and times of the earthquakes shown here have been revised since:

• 8.9 -> 9.0 (00:58:53) [1] archive copy at the Wayback Machine [2] archive copy at the Wayback Machine
• 7.3 -> 7.1 (04:21:29) [3] archive copy at the Wayback Machine
• 6.5 -> 6.6 (09:20:00) [4]
• 6.0 -> 5.8 [5] archive copy at the Wayback Machine
• 5.9 (02:59:12) -> 5.7 (02:59:14) [6] archive copy at the Wayback Machine
• 5.9 (01:48:46) -> 5.8 (01:48:49) [7] archive copy at the Wayback Machine
• 5.8 -> 5.7 (02:34:52) [8] archive copy at the Wayback Machine

Also, many more aftershocks have occurred. Therefore this image is out of date.