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And apparently without a preceding earthquake(?!), zero warning, just out of the blue. Damn.
?? I don't see that in the article. The DART buoys trigger an alert on a 3cm (in deep water) event. If the Tsunami was 1m coming ashore, it might well have been too small in deep water to trigger the event detector, although the DART buoy could see it with its 1mm resolution. The problem is that the Indonesian DART buoys are not functioning.The article says the tsunami was not large enough to trigger the DART system (only 1m)