No. As underneath the earth's crust consist large amount of HOT lava,
The molten lava produced from a active volcano is stored deep underground and CANNOT be put out by heavy rainwater.
* and also lava erupted is much bigger than the precipitation given off
so the great heat of the lava can make water turn into vapour and evaporate into thin air
,,,
***
know about volcanoes that are under the sea?
they don't stop erupting even they are under the sea. (and the sea surely has more water than rainwater.)
so this proves that lava cannot be be put out by water. it can only cool down and form igneous rock.