A method of increasing a stimulated reservoir volume in a wellbore in a gas-containing formation, the method comprising the steps of: reducing the temperature of the wellbore to a temperature below 48.8 °C (120°F) during a pre-pad injection or a pre-flush with brine; mixing an exothermic reaction component in an aqueous solution to achieve a pre-selected solution pH, wherein the exothermic reaction component is capable of reacting at a pre-selected wellbore temperature to generate a pressure pulse and wherein the pre-selected wellbore temperature is increased by increasing the pre-selected solution pH, wherein the exothermic reaction component comprises an ammonium containing compound and a nitrite containing compound, wherein the pre-selected solution pH is between 5.7 and 9; mixing the aqueous solution with a viscous fluid component to form a fracturing fluid, the viscous fluid component increasing the viscosity of the fracturing fluid and being capable of fracturing the gas-containing formation to create fractures, and the fracturing fluid further comprising a proppant component, which is carried to the fractures by the viscous fluid component, the proppant component comprises a proppant; injecting the fracturing fluid into the wellbore in the gas-containing formation to create fractures which are held open by the proppant; and wherein the exothermic reaction component is triggered to react within the fractures upon reaching the pre-selected wellbore temperature, whereby the pressure pulse at a pressure between about 3,400 kPa (500 psi) and about 340,000 kPa (50,000 psi) is generated and is capable of creating auxiliary fractures extending from the fractures caused by the fracturing fluid, wherein the auxiliary fractures create a fracture network, and wherein the fracture network increases the stimulated reservoir volume. reducing the temperature of the wellbore to a temperature below 48.8 °C (120°F) during a pre-pad injection or a pre-flush with brine; mixing an exothermic reaction component in an aqueous solution to achieve a pre-selected solution pH, wherein the exothermic reaction component is capable of reacting at a pre-selected wellbore temperature to generate a pressure pulse and wherein the pre-selected wellbore temperature is increased by increasing the pre-selected solution pH, wherein the exothermic reaction component comprises an ammonium containing compound and a nitrite containing compound, wherein the pre-selected solution pH is between 5.7 and 9; mixing the aqueous solution with a viscous fluid component to form a fracturing fluid, the viscous fluid component increasing the viscosity of the fracturing fluid and being capable of fracturing the gas-containing formation to create fractures, and the fracturing fluid further comprising a proppant component, which is carried to the fractures by the viscous fluid component, the proppant component comprises a proppant; injecting the fracturing fluid into the wellbore in the gas-containing formation to create fractures which are held open by the proppant; and wherein the exothermic reaction component is triggered to react within the fractures upon reaching the pre-selected wellbore temperature, whereby the pressure pulse at a pressure between about 3,400 kPa (500 psi) and about 340,000 kPa (50,000 psi) is generated and is capable of creating auxiliary fractures extending from the fractures caused by the fracturing fluid, wherein the auxiliary fractures create a fracture network, and wherein the fracture network increases the stimulated reservoir volume.