The Tongan volcano erupted 12km away from Nuku' Alofa, the capital. Scientists say they will get a closer look tomorrow. The under water eruption was in between the twin islands, Hunga Tonga and Hunga Ha'apai. After the eruption they felt small earthquakes.
But as they set off on their journey to the volcano they found out that their trip was changed to March 19. Tough their best guess is that the smoke was a volcano and they still think that there are changes happening. Their seismic equipment could not tell if the explosion was an earthquake or a volcanic eruption but from the smoke their guess is that it was a volcanic eruption. In the past week there were rough earthquakes and the longest one was the last, four seconds last Friday March 13.
http://www.pidp.og/pireport/2009/March/03-19-08.htm
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