Stress Drop Catalog for "Spatio-temporal evolution of earthquake static stress drop values in the 2016-2017 Central Italy seismic sequence" - Kemna et al. 2021 JGR - Solid Earth

Catalog with stress drop estimates for "Spatio-temporal evolution of earthquake static stress drop values in the 2016-2017 Central Italy seismic sequence"

Kemna et al., 2021, JGR: Solid-Earth, https://doi.org/10.1029/2021JB022566.

Description of columns:

Earthquake information

• ID - INGV Earthquake ID
• Latitude - Latitude in Degrees
• Longitude - Longitude in Degrees
• Depth - Depth in km
• Magnitude_INGV - Magnitude reported by INGV
• Origin_UTC - UTC Origin Time in ISO Format
• Catalog - Catalog source of specific event. See section 2.1 for details
• Profile_distance_norcia - Distance of earthquake from Norcia Mainshock location projected onto a NW-SE trending line
• Dayafter_20160101 - Day after start of catalog in float

Single spectra fitting estimates

• mw_s_mean - Moment Magnitude averaged over station estimates
• mw_s_err - 95% error (from delete-one jackknife-mean)
• m0_s_mean - Seismic Moment in Nm averaged over station estimates
• m0_s_err - 95 % error(from delete-one jackknife-mean)
• fc_s_sssa_mean - Corner frequency estimate averaged over station estimates
• fc_s_sssa_err - 95 % error(from delete-one jackknife-mean)
• strdrop_s_sssa_mean - Stress drop estimate averaged over station estimates
• strdrop_s_sssa_err - 95 % error(from delete-one jackknife-mean)
• sample_size_s_sssa - Number of stations with an estimate
• azimuthal_gap_s_sssa - Maximum azimuthal gap
• alpha_vel - P-wave velocity in m/s at Hypocenter
• beta_vel - S-wave velocity in m/s at Hypocenter

Cluster-event method estimates

• fc_s_cema_mean - Corner frequency estimated averaged over clusters
• fc_s_cema_err - 95 % error(from delete-one jackknife-mean)
• strdrop_s_cema_mean - Stress drop estimate using Magnitude estimate from single spectra fitting
• strdrop_s_cema_err - 95 % error

Spectral Ratio fitting estimates

• fc1_s_rsta_mean - Target event corner frequency estimate using automatic source spectra fitting averaged over eGfs
• fc1_s_rsta_err - 95 % error(from delete-one jackknife-mean)
• strdrop_s_rsta_mean - Stress drop estimate using Magnitude estimate from single spectra fitting
• strdrop_s_rsta_err - 95 % error
• egf_number_rsta_s - Number of eGfs for each target event
• fc1_s_rrta_mean - Target event corner frequency estimate using semi-automatic spectral ratiofitting averaged over eGfs
• fc1_strdrop_s_rrta_mean - Stress drop estimate using Magnitude estimate from single spectra fitting
• fc2_s_rrea_mean - eGf event corner frequency estimate using semi-automatic spectral ratiofitting averaged over eGfs
• fc2_strdrop_s_rrea_mean - Stress drop estimate using Magnitude estimate from single spectra fitting

Magnitude-normalized stress drop

• prio_strdrop_s - Which type of estimate is used
• magbin_s - Magnitude bin to which event is associated
• prio_strdrop_s_magbinmean - Stress drop mean for specific magnitude bin
• prio_strdrop_s_magbinstderr - 95 % error(from delete-one jackknife-mean)
• prio_strdrop_s_magnitude-normalized - Magnitude-normalized stress drop estimate