Early-est:     Off East Coast of Kamchatka    2025.08.03-20:52:02.99    q:B      mb:4.9*    Mwp:-    Mwpd:-    Td*T50Ex:-     fmamp_polarity:./hypo.1754254319743.mech.fmamp_polarity.thumb.jpg     fmamp_polarity_waveform:./hypo.1754254319743.mech.fmamp_polarity_waveform.thumb.jpg     hash:./hypo.1754254319743.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* [65]    Mwp: - [0]    Mwpd: - [0]
Region: Off East Coast of Kamchatka
Origin Time: 2025.08.03-20:52:02.99 UTC
Hypocenter: lat: 52.47°  lon: 159.29°  [+/-32km]    depth: 15km  [+/-32km]
Location Quality: qualityCode:  B     stdErr: 1.9s   assocPhases: 105   usedPhases: 78
minDist: 0.7°   maxDist: 148.1°   AzGap: 113°   2ndAzGap: 124°   atten: -0.72 [+/-0.28]
Location Uncertainty: 68%ConfEllipse:   minHorUnc: 22km   maxHorUnc: 32km   azMaxHorUnc: 97°
68%ConfEllipsoid:   semiMajorAxisLength: 40km   majorAxisAzimuth: 99°   majorAxisPlunge: 19°   semiIntermediateAxisLength: 32km   intermediateAxisAzimuth: 235°   intermediateAxisPlunge: 65°   semiMinorAxisLength: 26km
Tsunamigeneic Assesment:
Discriminants: Prob Underwater: >99%
T50Ex: 0.4 [34]    Td: -s [0]    Td*T50Ex: - [0]    To: 1.6s [33]
Closest plate boundaries:
   Okhotsk / Pacific [subduction zone]: distance: ~120km
   North America / Pacific [subduction zone]: distance: ~440km
   Okhotsk / North America [subduction zone]: distance: ~440km
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 (120km)
 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.1754254319743.map.jpg

First-motion Focal Mechanism (FMAMP_POLARITY):    (Warning: VERY UNRELIABLE SOLUTION, qualityCode=D)
Nodal Plane 1: strike: 271°   dip: 58°   rake: -151°
Nodal Plane 2: strike: 164°   dip: 66°   rake: -36°
Quality: azimuthalGap: -1°   stationPolarityCount: 63   misfitWeightCount: 10.1   misfit: 0.11   stationDistributionRatio: 0.34   meanDistP: 51.3   meanDistT: 51.1   qualityCode: D
Method: methodID: smi:net.alomax/focalmec/fmamp_0.0.5X_2016.06.14/_polarity
./hypo.1754254319743.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.1754254319743.mech.fmamp_polarity_waveform.mechanism.jpg
First-motion Focal Mechanism (HASH):    (Warning: Unreliable solution, qualityCode=C)
Nodal Plane 1: strike: 259°   dip: 68°   rake: -174°
Nodal Plane 2: strike: 167°   dip: 84°   rake: -23°
Quality: azimuthalGap: 76°   stationPolarityCount: 63   misfit: 0.42   stationDistributionRatio: 0.69   rmsAngDiffAccPref: 20.98   fracAcc30degPref: 0.95   qualityCode: C
Method: methodID: smi:gov.usgs/focalmec/HASH_1.2
./hypo.1754254319743.mech.hash.mechanism.jpg

Event ID: smi:alomax.net_BETA/author/ee/event/1754254319743
Event info last updated: 2025.08.03-21:51:00 UTC
Event first association/location: 2025.08.03-20:57:02 UTC
Software: Early-est 1.2.10 (2024.02.23)
Agency: alomax.net_BETA