Method of conducting diagnostics on a subterranean formation

A method comprising:

• a. providing a first sensor in an injection well penetrating a subterranean formation;
• b. providing a second sensor in an observation well penetrating the subterranean formation;
• c. increasing pressure within the injection well until a fracture extends from an initiation location in the injection well through a portion of the subterranean formation to an intersection location in the observation well, wherein increasing pressure within the injection well comprises introducing fluid into the injection well;
• d. obtaining a measurement indicative of fracture initiation from the first sensor;
• e. determining a height of the fracture at the injection well;
• f. obtaining a measurement indicative of fracture intersection from the second sensor;
• g. determining a volume of fluid introduced between the fracture initiation and the fracture intersection;
• h. determining a distance between the initiation location and the intersection location;
• i. determining a time lapse between the fracture initiation and the fracture intersection;
• and
• j. using the determined values, calculating a hydraulic fracturing characteristic.