Early-est:     Near East Coast of Kamchatka    2025.08.01-02:48:56.89    q:A      mb:4.9*    Mwp:-    Mwpd:-    Td*T50Ex:-     fmamp_polarity:./hypo.1754016535119.mech.fmamp_polarity.thumb.jpg     fmamp_polarity_waveform:./hypo.1754016535119.mech.fmamp_polarity_waveform.thumb.jpg     hash:./hypo.1754016535119.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: 4.9* [59]    Mwp: - [0]    Mwpd: - [0]
Region: Near East Coast of Kamchatka
Origin Time: 2025.08.01-02:48:56.89 UTC
Hypocenter: lat: 51.06°  lon: 158.53°  [+/-13km]    depth: 23km  [+/-12km]
Location Quality: qualityCode:  A     stdErr: 1.5s   assocPhases: 109   usedPhases: 72
minDist: 2.0°   maxDist: 157.8°   AzGap: 67°   2ndAzGap: 75°   atten: -1.54 [+/-0.28]
Location Uncertainty: 68%ConfEllipse:   minHorUnc: 10km   maxHorUnc: 13km   azMaxHorUnc: 149°
68%ConfEllipsoid:   semiMajorAxisLength: 17km   majorAxisAzimuth: 329°   majorAxisPlunge: 1°   semiIntermediateAxisLength: 13km   intermediateAxisAzimuth: 60°   intermediateAxisPlunge: 40°   semiMinorAxisLength: 12km
Tsunamigeneic Assesment:
Discriminants: Prob Underwater: >99%
T50Ex: 0.4 [38]    Td: -s [0]    Td*T50Ex: - [0]    To: 1.8s [36]
Closest plate boundaries:
   Okhotsk / Pacific [subduction zone]: distance: ~100km
   North America / Pacific [subduction zone]: distance: ~590km
   Okhotsk / North America [subduction zone]: distance: ~590km
Subduction geometry:    Zone: Kamchatka/Kurils/Japan: 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 (100km)
 no
 no
Prob underwater:
 >99%
 >99%
 >99%
Td*T50Ex:
   -
   -
   -
Td*To:
     -
     -
     -
Mwp magnitude:
       -
       -
       -
Hypocenter depth:
       23km
       23km
       23km
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.1754016535119.map.jpg

First-motion Focal Mechanism (FMAMP_POLARITY):    (Warning: VERY UNRELIABLE SOLUTION, qualityCode=D)
Nodal Plane 1: strike: 271°   dip: 43°   rake: -58°
Nodal Plane 2: strike: 50°   dip: 55°   rake: -116°
Quality: azimuthalGap: -1°   stationPolarityCount: 60   misfitWeightCount: 9.3   misfit: 0.20   stationDistributionRatio: 0.54   meanDistP: 44.9   meanDistT: 50.4   qualityCode: D
Method: methodID: smi:net.alomax/focalmec/fmamp_0.0.5X_2016.06.14/_polarity
./hypo.1754016535119.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.1754016535119.mech.fmamp_polarity_waveform.mechanism.jpg
First-motion Focal Mechanism (HASH):
Nodal Plane 1: strike: 205°   dip: 66°   rake: 158°
Nodal Plane 2: strike: 305°   dip: 70°   rake: 25°
Quality: azimuthalGap: 100°   stationPolarityCount: 60   misfit: 0.25   stationDistributionRatio: 0.69   rmsAngDiffAccPref: 16.16   fracAcc30degPref: 0.97   qualityCode: B
Method: methodID: smi:gov.usgs/focalmec/HASH_1.2
./hypo.1754016535119.mech.hash.mechanism.jpg

Event ID: smi:alomax.net_BETA/author/ee/event/1754016535119
Event info last updated: 2025.08.01-03:47:01 UTC
Event first association/location: 2025.08.01-02:56:01 UTC
Software: Early-est 1.2.10 (2024.02.23)
Agency: alomax.net_BETA