Early-est:     Mariana Islands    2025.08.06-16:56:21.51    q:C      mb:4.8*    Mwp:-    Mwpd:-    Td*T50Ex:-     fmamp_polarity:     fmamp_polarity_waveform:     hash:

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

Earthquake Details: Magnitude: mb: 4.8* [13]    Mwp: - [0]    Mwpd: - [0] Region: Mariana Islands Origin Time: 2025.08.06-16:56:21.51 UTC Hypocenter: lat: 13.55°  lon: 144.67°  [+/-23km]    depth: 112km  [+/-24km] Location Quality: qualityCode:  C     stdErr: 1.8s   assocPhases: 19   usedPhases: 17 minDist: 0.2°   maxDist: 148.2°   AzGap: 204°   2ndAzGap: 224°   atten: -0.56 [+/-0.72] Location Uncertainty: 68%ConfEllipse:   minHorUnc: 16km   maxHorUnc: 23km   azMaxHorUnc: 11° 68%ConfEllipsoid:   semiMajorAxisLength: 34km   majorAxisAzimuth: 13°   majorAxisPlunge: 39°   semiIntermediateAxisLength: 20km   intermediateAxisAzimuth: 109°   intermediateAxisPlunge: 7°   semiMinorAxisLength: 15km Tsunamigeneic Assesment: Discriminants: Prob Underwater: 95% T50Ex: 0.0 [6]    Td: 6.6Xs [1]    Td*T50Ex: - [0]    To: 0.9s [6] Closest plate boundaries:    Philippine Sea - Mariana [oceanic spreading ridge]: distance: ~80km    Mariana / Pacific [subduction zone]: distance: ~150km    Philippine Sea / Pacific [subduction zone]: distance: ~280km Subduction geometry:    Zone: Izu-Bonin: 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 (150km)  no  no Prob underwater:  95%  95%  95% Td*T50Ex:    -    -    - Td*To:      -      -      - Mwp magnitude:        -        -        - Hypocenter depth:        112km        112km        112km 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)

First-motion Focal Mechanism (FMAMP_POLARITY):    (Warning: VERY UNRELIABLE SOLUTION, qualityCode=D) Nodal Plane 1: strike: 169°   dip: 33°   rake: -129° Nodal Plane 2: strike: 33°   dip: 65°   rake: -68° Quality: azimuthalGap: -1°   stationPolarityCount: 14   misfitWeightCount: 2.5   misfit: 0.06   stationDistributionRatio: 0.35   meanDistP: 53.8   meanDistT: 55.5   qualityCode: D Method: methodID: smi:net.alomax/focalmec/fmamp_0.0.5X_2016.06.14/_polarity
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
First-motion Focal Mechanism (HASH):    (No solution available) Nodal Plane 1: strike: 999°   dip: 99°   rake: 999° Nodal Plane 2: strike: 324°   dip: 13°   rake: 135° Quality: azimuthalGap: 250°   stationPolarityCount: 15   misfit: 0.99   stationDistributionRatio: 0.00   rmsAngDiffAccPref: 0.00   fracAcc30degPref: 0.00   qualityCode: E Method: methodID: smi:gov.usgs/focalmec/HASH_1.2

Event ID: smi:alomax.net_BETA/author/ee/event/1754499382193
Event info last updated: 2025.08.06-17:55:00 UTC
Event first association/location: 2025.08.06-17:04:01 UTC
Software: Early-est 1.2.10 (2024.02.23)
Agency: alomax.net_BETA