01 - Preheat the oven to 350°F. Grease a 9x13-inch baking pan thoroughly to prevent sticking.
02 - Combine strawberry cake mix, eggs, vegetable oil, and water in a large bowl. Mix according to package directions until smooth. Pour the batter evenly into the prepared pan.
03 - Beat together softened cream cheese, butter, powdered sugar, and vanilla extract in a separate bowl until smooth and creamy. The mixture should have a spreadable consistency.
04 - Drop spoonfuls of the cream cheese mixture evenly over the surface of the cake batter, spacing them out to ensure good distribution.
05 - Scatter diced strawberries and white chocolate chips evenly over the top. Sprinkle with shredded coconut if desired.
06 - Using a knife, gently swirl the cream cheese mixture into the cake batter to create a marbled effect. Avoid over-mixing to maintain distinct layers.
07 - Bake for 40–45 minutes until the cake is mostly set but still slightly gooey in the center. An earthquake cake should retain a molten texture.
08 - Allow the cake to cool in the pan for at least 30 minutes before slicing and serving. This helps the layers set while maintaining the gooey texture.