Although tons of material regularly enter Earth's atmosphere, very little reaches the ground. In fact, the number of all witnessed and recovered meteorite strikes on the entire planet is only around 1100! So when two meteors strike 150 miles apart, separated by a mere eight months--it's nearly unbelievable.
Yet in 1911-12, this did happen near a small railroad stop called Supai, east of Ash Fork, and later over Aztec, another stop on the same railroad line! The explosive force of each was colossal and caused great panic and alarm for all who experienced it.
