I am going to say that it is true
A caldera viscous or acidic lava plugs the vent of a volcano this leads to violent eruptions this causes the crater to be blown off the top of the volcano subsides or collapes forming a basin shaped depression.called a caldera .hope this helps
The country Russia is located there
The cycle of phases has an average period of 29.53... days (rounded).
If the moon is full tonight, then it will be full again in 59.06 days.
59.06 days is 8 weeks and 3.06 days.
Does that fit what you mean by "about" 8 weeks ?
