You create a earthquake at a point on the ground that you can see within Range. For the duration, an intense tremor rips through the ground in a 100-foot-radius circle centered on that point and shakes creatures and structures in contact with the ground in that area.

This Spell can have additional effects depending on the terrain in the area, as determined by the GM.

• Fissures Fissures open throughout the spell's area at the start of your next turn after you cast the spell. A total of 1d6 such fissures open in locations chosen by the DM. Each is 1d10 × 10 feet deep, 10 feet wide, and extends from one edge of the spell's area to the opposite side. A creature standing on a spot where a fissure opens must succeed on a Dexterity saving throw or fall in. A creature that successfully saves moves with the fissure's edge as it opens.
  
  A fissure that opens beneath a structure causes it to automatically collapse (see below).
• Structures The tremor deals 50 bludgeoning damage to any structure in contact with the ground in the area when you cast the spell and at the start of each of your turns until the spell ends. If a structure drops to 0 hit points, it collapses and potentially damages nearby creatures. A creature within half the distance of a structure's height must make a Dexterity saving throw. On a failed save, the creature takes 5d6 bludgeoning damage, is knocked prone, and is buried in the rubble, requiring a DC 20 Strength (Athletics) check as an action to escape. The DM can adjust the DC higher or lower, depending on the nature of the rubble. On a successful save, the creature takes half as much damage and doesn't fall prone or become buried.

Your words resonate like thunder, an avalanche of sound. The stone in your grasp fractures, dissolving into dust slipping through your fingers. A weighted silence ensues, followed by a ground-shaking tremor, starting subtly but escalating rapidly. The earth fractures, ejecting clouds of dust and debris. Mud surfaces, and structures vanish beneath the tumultuous upheaval.

I Cast Earthquake
Fixating on the components in my palm, I channel my focus into the raw, destructive force of nature. Initiating the incantation, I utter alien, deep, and primal words, scripted by ancient beings predating the world. Concluding the geometric pattern traced in the air, I unlock the ability to shape the land according to my will.