why does indonesian has such a bad geographical location?

The earth consists of several tectonic plates and the are moving constantly due to the rotating of the earth.Indonesia is located at the edge of the tectonic plate which it suffers from huge tectonic movement, that is why it always suffer from earthquake. Most earthquakes happen under the sea, it leads to the change in sea level, most probably a sudden rise in it and hence creating a stronf sudden ocean current which is called tsunami. The volcanic eruptions are also due to the vigorous tectonic movement........