Early-est:     Santa Cruz Islands    2024.12.20-14:33:10.41    q:B      mb:5.2*    Mwp:-    Mwpd:-    Td*T50Ex:-     fmamp_polarity:./hypo.1734705190404.mech.fmamp_polarity.thumb.jpg     fmamp_polarity_waveform:./hypo.1734705190404.mech.fmamp_polarity_waveform.thumb.jpg     hash:./hypo.1734705190404.mech.hash.thumb.jpg

Automatic solution - this event has not been reviewed by a seismologist
Automatically determined event information may be incorrect!

Earthquake Details:
Magnitude: mb: 5.2* [37]    Mwp: 5.7X [2]    Mwpd: 5.8Xinv [2]
Region: Santa Cruz Islands
Origin Time: 2024.12.20-14:33:10.41 UTC
Hypocenter: lat: -11.85°  lon: 165.99°  [+/-13km]    depth: 15km  [+/-15km]
Location Quality: qualityCode:  B     stdErr: 1.8s   assocPhases: 75   usedPhases: 53
minDist: 8.9°   maxDist: 169.6°   AzGap: 90°   2ndAzGap: 135°   atten: -0.73 [+/-0.26]
Location Uncertainty: 68%ConfEllipse:   minHorUnc: 13km   maxHorUnc: 13km   azMaxHorUnc: 129°
68%ConfEllipsoid:   semiMajorAxisLength: 16km   majorAxisAzimuth: 93°   majorAxisPlunge: 37°   semiIntermediateAxisLength: 16km   intermediateAxisAzimuth: 350°   intermediateAxisPlunge: 17°   semiMinorAxisLength: 15km
Tsunamigeneic Assesment:
Discriminants: Prob Underwater: >99%
T50Ex: 0.4 [31]    Td: 3.5Xs [3]    Td*T50Ex: - [0]    To: 7.1s [30]
Closest plate boundaries:
   Pacific / Australia [subduction zone]: distance: ~40km
Subduction geometry:    Zone: Santa Cruz Islands/Vanuatu/Loyalty Islands: DEBUG: error: [Errno 2] No such file or directory: 'gmt'    Slab depth at epicenter: error: evaluating slab depth: -999.9
Decision table (TEST!):
Event type: Subduction Zone Other Thrust/Normal Strike-slip
Compatible close plate boundary?:
 YES (40km)
 no
 no
Prob underwater:
 >99%
 >99%
 >99%
Td*T50Ex:
   -
   -
   -
Td*To:
     -
     -
     -
Mwp magnitude:
       -
       -
       -
Hypocenter depth:
       15km
       15km
       15km
Slab depth at epicenter:
       n/a
       -
       -
Tsunami and Rupture predictions (TEST!): No prediction: Event too small (Mwp<7.0) or too few Mwp readings (N<20)
./hypo.1734705190404.map.jpg

First-motion Focal Mechanism (FMAMP_POLARITY):    (Warning: VERY UNRELIABLE SOLUTION, qualityCode=D)
Nodal Plane 1: strike: 83°   dip: 20°   rake: -127°
Nodal Plane 2: strike: 302°   dip: 74°   rake: -78°
Quality: azimuthalGap: -1°   stationPolarityCount: 38   misfitWeightCount: 7.0   misfit: 0.13   stationDistributionRatio: 0.42   meanDistP: 48.3   meanDistT: 45.0   qualityCode: D
Method: methodID: smi:net.alomax/focalmec/fmamp_0.0.5X_2016.06.14/_polarity
./hypo.1734705190404.mech.fmamp_polarity.mechanism.jpg
First-motion Focal Mechanism (FMAMP_POLARITY_WAVEFORM):    (No solution available)
Nodal Plane 1: strike: 0°   dip: 0°   rake: 0°
Nodal Plane 2: strike: 270°   dip: 90°   rake: 90°
Quality: azimuthalGap: -1°   stationPolarityCount: 0   misfitWeightCount: -1.0   misfit: -1.00   stationDistributionRatio: -1.00   meanDistP: -1.0   meanDistT: -1.0   qualityCode: X
Method: methodID: smi:net.alomax/focalmec/fmamp_0.0.5X_2016.06.14/_polarity_waveform
./hypo.1734705190404.mech.fmamp_polarity_waveform.mechanism.jpg
First-motion Focal Mechanism (HASH):    (Warning: VERY UNRELIABLE SOLUTION, qualityCode=D)
Nodal Plane 1: strike: 104°   dip: 81°   rake: 148°
Nodal Plane 2: strike: 200°   dip: 58°   rake: 11°
Quality: azimuthalGap: 90°   stationPolarityCount: 38   misfit: 0.32   stationDistributionRatio: 0.70   rmsAngDiffAccPref: 40.31   fracAcc30degPref: 0.43   qualityCode: D
Method: methodID: smi:gov.usgs/focalmec/HASH_1.2
./hypo.1734705190404.mech.hash.mechanism.jpg

Event ID: smi:alomax.net_BETA/author/ee/event/1734705190404
Event info last updated: 2024.12.20-15:32:01 UTC
Event first association/location: 2024.12.20-14:39:02 UTC
Software: Early-est 1.2.10 (2024.02.23)
Agency: alomax.net_BETA