Table 1 Information included in the stress magnitude database

Location

Pressure measurements

Latitude, longitude

Breakdown pressure (+SD)

UTM coordinates

Reopening pressure (+SD)

Depth below surface (true vertical depth)

Shut-in pressure (+SD)

Reference height if deviating from ground level

Leak-off pressure

Site/locality

Formation propagation pressure (+SD)

Country

Fracture closure pressure (+SD)

Injected volume

Indicator

Fracture geometry

Measurement type

Azimuth of opened fracture

Measurement depth interval

Dipping angle of opened fracture

Number of single measurements

Comments

Stress tensor

Questionable values

Aazimuth \(S_\text {Hmax}\) (+WSM-quality, SD)

General comment field: additional information of various kind

Stress regime

Principal stresses \(\sigma _{1/2/3}\) (+SD)

Effective principal stresses \(\sigma _{1/2/3eff}\)

References

\(S_\text {hmin}, S_\text {Hmax}\) (+bounds, SD)

Label(s) to reference(s)

\(S_{\text {hmin}eff}, S_{\text {Hmax}eff}\)

Written-out reference(s)

\(S_\text {V}\) (+SD)

DOI(s) to reference(s)

\(S_{\text {V}eff}\)

Pore pressure

Quality assignment

Rock properties

Young’s modulus

Poisson’s ratio

Rock type

Lithostratigraphic unit

Rock density

In situ tensile strength