This looks like a standard correllation/causation fallacy. Nothing to see here.
Wasn't Galleleo accused of that type of reasoning?
Buy stock in companies that may 'strap-down' materials?
It, then, seems difficult to pass off the temporal proximity of these two class one events as just as a matter of coincidence.
Indonesian earthquake and tsunami: December 26, 2004 at 00 hours 58 minutes UT
SGR 1806-20 gamma ray burst: December 27, 2004 at 21 hours 36 minutes UT
A time span of 25 years compared to ~45 hours, a ratio of about 5000:1. In fact, many have inquired if there might be a connection between these two events
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This IS very suggestive. I can easily see reasons for this lead time having something to do with "gravity waves"... Certainly, it is not "proof", but it is easy to come up with experimental studies based on the concept.