Early-est:     Mariana Islands Region    2017.03.12-14:05:51.60    q:A      mb:4.5    Mwp:-    Mwpd:-    Td*T50Ex:-     fmamp_polarity:     hash:     fmamp_amp_aref:     fmamp_amp_mwp:

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

Earthquake Details: Magnitude: mb: 4.5 [44]    Mwp: - [0]    Mwpd: - [0] Region: Mariana Islands Region Origin Time: 2017.03.12-14:05:51.60 UTC Hypocenter: lat: 21.43°  lon: 143.37°  [+/-6km]    depth: 291km  [+/-9km] Location Quality: qualityCode:  A     stdErr: 0.7s   assocPhases: 75   usedPhases: 60 minDist: 5.8°   maxDist: 149.8°   AzGap: 55°   2ndAzGap: 97°   atten: -1.28 [+/-0.20] Location Uncertainty: 68%ConfEllipse:   minHorUnc: 5km   maxHorUnc: 6km   azMaxHorUnc: 95° 68%ConfEllipsoid:   semiMajorAxisLength: 9km   majorAxisAzimuth: 297°   majorAxisPlunge: 67°   semiIntermediateAxisLength: 8km   intermediateAxisAzimuth: 87°   intermediateAxisPlunge: 20°   semiMinorAxisLength: 6km Tsunamigeneic Assesment: Discriminants: Prob Underwater: >99% T50Ex: 0.0 [28]    Td: 0.5Xs [1]    Td*T50Ex: - [0]    To: 1.1s [19] Closest plate boundaries:    Philippine Sea - Mariana [oceanic spreading ridge]: distance: ~20km    Mariana / Pacific [subduction zone]: distance: ~240km    Philippine Sea / Pacific [subduction zone]: distance: ~330km Subduction geometry:    Zone: Izu-Bonin    Slab depth at epicenter: 231km Decision table (TEST!): Event type: Subduction Zone Other Thrust/Normal Strike-slip Compatible close plate boundary?:  YES (240km)  no  no Prob underwater:  >99%  >99%  >99% Td*T50Ex:    -    -    - Td*To:      -      -      - Mwp magnitude:        -        -        - Hypocenter depth:        291km        291km        291km Slab depth at epicenter:        231km        -        -

First-motion Focal Mechanism (FMAMP_POLARITY):    (Warning: VERY UNRELIABLE SOLUTION, qualityCode=D) Nodal Plane 1: strike: 148°   dip: 21°   rake: -100° Nodal Plane 2: strike: 339°   dip: 70°   rake: -86° Quality: azimuthalGap: -1°   stationPolarityCount: 42   misfitWeightCount: 8.9   misfit: 0.21   stationDistributionRatio: 0.60   meanDistP: 38.3   meanDistT: 35.1   qualityCode: D Method: methodID: smi:net.alomax/focalmec/fmamp_0.0.5X_2016.06.14/_polarity
First-motion Focal Mechanism (HASH):    (Warning: Unreliable solution, qualityCode=C) Nodal Plane 1: strike: 132°   dip: 83°   rake: 147° Nodal Plane 2: strike: 227°   dip: 58°   rake: 8° Quality: azimuthalGap: 54°   stationPolarityCount: 42   misfit: 0.41   stationDistributionRatio: 0.81   rmsAngDiffAccPref: 40.97   fracAcc30degPref: 0.71   qualityCode: C Method: methodID: smi:gov.usgs/focalmec/HASH_1.2
First-motion Focal Mechanism (FMAMP_AMP_AREF):    (No solution available) Nodal Plane 1: strike: 9°   dip: 0°   rake: 0° Nodal Plane 2: strike: 279°   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/_amp_aref
First-motion Focal Mechanism (FMAMP_AMP_MWP):    (No solution available) Nodal Plane 1: strike: 9°   dip: 0°   rake: 0° Nodal Plane 2: strike: 279°   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/_amp_mwp

Event ID: smi:localhost/ee/event/1489327554178
Event info last updated: 2017.03.12-15:06:08 UTC
Event first association/location: 2017.03.12-14:11:35 UTC
Software: Early-est 1.2.0 (2016.06.27)
Agency: localhost