26 May 2000, 10:55, circumnavigating the SEC cone. This is another beautiful example of the huge "things" erupted by SEC during a paroxysm. As it was partially covered by more recent tephra, we are not sure about its origin. It could be a bomb (but there is no evidence of an impact crater) but it could also be a block rolled down after detaching from a lava flow, its path being then completely covered by the tephra. |