BGR, the Burger Joint will be selling half-price shakes at all its locations between 3-4 p.m. today. The promotion is to commemorate the earth’s shaking earlier this morning. While you can count me in the category of “I think my burps registered higher than a 3.7,” a delicious $2.50 shake is nothing I’ll shake a stick at — and a portion of the proceeds will go to the American Red Cross, so you can’t really go wrong. Your flavor options include double chocolate, vanilla bean, and strawberry. You can also try the shake of the month, Peach Pie, which features peach ice cream topped with graham cracker crumbles and whipped cream.