Taking Strike with a Brunton Compass The easiest way to measure strike using a Brunton compass is to align the compass in the strike direction (following the Right-Hand Rule), balance the bubble, pin it firmly, and then read the value from the white portion of the needle pointer. Accuracy in this simple step makes a big difference in structural interpretation and exploration success. Mastering strike measurementstarts with simple discipline: align, balance, pin, and read. Accurate geology begins