Despite the undesirable effects,volcanic activities have some benefits to them.Some of the benefits include
Hot rocks underground can be used to heat up water turning it into steam which can be used to generate electricity.Countries such as New Zealand utilize geysers for electrical generation
Solidified magma and volcanic bombs are deposited and forms precious minerals.
Volcanic debris provide nutrient rich soils which can be used for agriculture.
Spectacular and picturesque sceneries created by volcanoes eg cones,geysers,mud volcanoes provide useful tourist sites.