Early-est:     Off East Coast of Kamchatka    2026.09.30-18:21:19.87    q:A      mb:5.2*    Mwp:-    Mwpd:-    Td*T50Ex:-     fmamp_polarity:./hypo.1790792482887.mech.fmamp_polarity.thumb.jpg     fmamp_polarity_waveform:./hypo.1790792482887.mech.fmamp_polarity_waveform.thumb.jpg     hash:./hypo.1790792482887.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* [68]    Mwp: 5.3X [1]    Mwpd: 5.3Xinv [1]
Region: Off East Coast of Kamchatka
Origin Time: 2026.09.30-18:21:19.87 UTC
Hypocenter: lat: 52.39°  lon: 160.30°  [+/-12km]    depth: 15km  [+/-14km]
Location Quality: qualityCode:  A     stdErr: 1.3s   assocPhases: 105   usedPhases: 78
minDist: 12.5°   maxDist: 142.3°   AzGap: 115°   2ndAzGap: 140°   atten: -0.87 [+/-0.30]
Location Uncertainty: 68%ConfEllipse:   minHorUnc: 10km   maxHorUnc: 12km   azMaxHorUnc: 156°
68%ConfEllipsoid:   semiMajorAxisLength: 16km   majorAxisAzimuth: 167°   majorAxisPlunge: 40°   semiIntermediateAxisLength: 13km   intermediateAxisAzimuth: 290°   intermediateAxisPlunge: 33°   semiMinorAxisLength: 12km
Tsunamigeneic Assesment:
Discriminants: Prob Underwater: >99%
T50Ex: 0.4 [60]    Td: 1.0Xs [2]    Td*T50Ex: - [0]    To: 2.6s [57]
Closest plate boundaries:
   Okhotsk / Pacific [subduction zone]: distance: ~50km
   North America / Pacific [subduction zone]: distance: ~400km
   Okhotsk / North America [subduction zone]: distance: ~400km
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 (50km)
 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.1790792482887.map.jpg

First-motion Focal Mechanism (FMAMP_POLARITY):    (Warning: Unreliable solution, qualityCode=C)
Nodal Plane 1: strike: 11°   dip: 34°   rake: 144°
Nodal Plane 2: strike: 132°   dip: 71°   rake: 61°
Quality: azimuthalGap: -1°   stationPolarityCount: 71   misfitWeightCount: 9.3   misfit: 0.19   stationDistributionRatio: 0.36   meanDistP: 47.9   meanDistT: 39.2   qualityCode: C
Method: methodID: smi:net.alomax/focalmec/fmamp_0.0.5X_2016.06.14/_polarity
./hypo.1790792482887.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.1790792482887.mech.fmamp_polarity_waveform.mechanism.jpg
First-motion Focal Mechanism (HASH):    (Warning: VERY UNRELIABLE SOLUTION, qualityCode=D)
Nodal Plane 1: strike: 315°   dip: 84°   rake: 147°
Nodal Plane 2: strike: 48°   dip: 57°   rake: 7°
Quality: azimuthalGap: 144°   stationPolarityCount: 71   misfit: 0.31   stationDistributionRatio: 0.68   rmsAngDiffAccPref: 44.53   fracAcc30degPref: 0.40   qualityCode: D
Method: methodID: smi:gov.usgs/focalmec/HASH_1.2
./hypo.1790792482887.mech.hash.mechanism.jpg

Event ID: smi:alomax.net_BETA/author/ee/event/1790792482887
Event info last updated: 2026.09.30-19:19:13 UTC
Event first association/location: 2026.09.30-18:28:01 UTC
Software: Early-est 1.2.10 (2024.02.23)
Agency: alomax.net_BETA