The World Tremors

In WoDaD Session 13, reality itself shook.
"Since reality started shaking the other day, all across the country there have been these weak spots between the planes, Rifts opening to other dimensions where their domains are bleeding through. Sometimes it's not too bad, like in the small town of Mallharc where there's a reported aura of permanent calmness and peace, but a lot of times... well, we're built for the Prime Material, not the other planes.
"[It] all started at the same time, right when that meteor appeared. It seemed like... like a natural disaster turned magical and amped up to eleven." -Nūt, WoDaD Session 20.
There seem to be some connections bet. The plane of water opened up near a town surrounded on three sides by water. The fire plane opened up near a small volcano. The outer lands opened up in Zendarru Nightfall Hold, where Ulurslef, a powerful eldritch being likely from the outer lands, had some meddling. A lot of these rifts - more than not - are near either mage holds or recent battles in the war. The "similarities to other planes" explains where they open up to, but not where they open up in the first place. The war, the deeply magical war raging across the nation, it's tearing the fabric of the plane apart and leaving deep, bleeding wounds.
And with that comes a horrible realization. It's no longer a matter of a few civilians getting caught in the crossfire. It's a matter of the entire world ending if this goes on much longer unchecked.