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 batter.
03 - Combine strawberry cake mix, melted butter, eggs, and milk in a large bowl. Mix until completely smooth. Spread evenly into prepared pan.
04 - Scatter sugared strawberries, white chocolate chips, and shredded coconut evenly over the cake batter.
05 - Beat cream cheese and softened butter until smooth and creamy. Add powdered sugar and vanilla extract, mixing until fluffy and fully incorporated.
06 - Drop spoonfuls of cream cheese mixture over batter. Use butter knife to gently swirl, creating marbled pattern. Do not overmix—the earthquake appearance comes from distinct swirls.
07 - Bake 38–42 minutes until edges are set but center remains slightly gooey. Do not overbake—the signature cracked top creates the earthquake effect.
08 - Cool in pan 15–20 minutes before slicing. Serve warm or at room temperature for optimal gooey texture.