Was there a volcanic eruption after the 1997 earthquake?
Yes, for example, an earthquake triggered the 1980 eruption of Mt. St Helens in the USA. However this is a slightly chicken and egg situation in thatthe earthquake itself was a result of the volcanic activity (high pressure magma causing bulging of the crust and flanks of the volcano, triggering earthquakes, which in turn caused a landslide which triggered the eruption). Please see the related link for more information.
the earthquake is when tectonic plates move and collide with force that takes many years to happen so it can be predicted when it would happen and a volcanic eruption is when to much stress is put on the earth and it is more spontaneous and is harder to predict because it is all about the hold of the earth over the lava and if there is release or not