Dream interpretation? mountains crumbling, gravel roads rising?

My son (8), daughter (12), and I are all standing on a large concrete platform with metal roof overhead, but walls are all open. We smell fire, and notice a large plume of smoke rising out of mountains in the distance. It is far away, so we are not worried at all; we just stand there watching the smoke billow up. Then we hear a loud thunder clap, and notice the mountains are crumbling & falling. Again too far away, not worried. But the mountain debris & rocks tumble onto our concrete slab & we realize it is closer than we thought. We run to the other side of the concrete slab, near a gravel road. The gravel road rises up like a giant wave in the ocean, and the 3 of us start scrambling to find a safe place to go, but we never leave the concrete slab. My kids disappear in the chaos. The gravel road recedes back, like waves of an ocean, and I see my daughter. She starts running towards me and I turn my attention to looking for my son, who is nowhere to be found. I panic & wake up.

My heart frantically beating out of my chest probably pulled me out of the dream.

Meanwhile my son (in reality) had crawled into bed with us & wedged himself between my husband and I. So when I woke up, he was nose-nose with me. Yes I hugged him, and this time he didn’t get in trouble for climbing up on our bed. I just snuggled him the rest of the night unable to go back to sleep.