Sarychev volcano on Matua Island...

is seen here capped by clouds as we approached this afternoon to make a landing there:

But it had exploded just a year before in a violent eruption on 12 June 2009, and the eruption was serendipitously captured by an astronaut on the ISS:
This island was also struck by a large tsunami in November 2006 that was generated by a local earthquake in the Kuril trench, and the 20 meter run-up reconfigured the shore where we landed, exposing this old pillbox and metal drums:

Elsewhere on the island there were more rusting relics of yet another abandoned Soviet airfield: