01 - Preheat oven to 350°F. Grease a 9x13-inch baking pan thoroughly with cooking spray or butter.
02 - Toss sliced strawberries with granulated sugar in a medium bowl. Set aside to macerate while preparing the batter.
03 - Combine strawberry cake mix, melted butter, eggs, and milk in a large bowl. Beat until smooth and fully incorporated. Spread batter evenly into prepared pan.
04 - Scatter sugared strawberries, white chocolate chips, and shredded coconut evenly over the surface of the cake batter.
05 - Beat cream cheese and softened butter together until smooth and creamy. Add powdered sugar and vanilla extract, mixing until fluffy and well combined.
06 - Drop spoonfuls of cream cheese mixture randomly over the cake batter. Gently swirl with a butter knife to create a marbled pattern, being careful not to overmix.
07 - Bake for 38-42 minutes until edges are set but center remains slightly gooey. The characteristic earthquake appearance comes from the cracked, uneven top.
08 - Allow cake to cool in pan for 15-20 minutes before slicing. Serve warm or at room temperature for the best texture and flavor.