Early-est:     Xizang    2025.01.27-09:33:40.15    q:B      mb:4.8    Mwp:-    Mwpd:-    Td*T50Ex:-     fmamp_polarity:./hypo.1737970421127.mech.fmamp_polarity.thumb.jpg     hash:./hypo.1737970421127.mech.hash.thumb.jpg     fmamp_amp_aref:./hypo.1737970421127.mech.fmamp_amp_aref.thumb.jpg     fmamp_amp_mwp:./hypo.1737970421127.mech.fmamp_amp_mwp.thumb.jpg

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

Earthquake Details:
Magnitude: mb: 4.8 [27]    Mwp: - [0]    Mwpd: - [0]
Region: Xizang
Origin Time: 2025.01.27-09:33:40.15 UTC
Hypocenter: lat: 28.48°  lon: 87.40°  [+/-13km]    depth: 10km  [+/-24km]
Location Quality: qualityCode:  B     stdErr: 1.9s   assocPhases: 58   usedPhases: 33
minDist: 0.7°   maxDist: 146.2°   AzGap: 54°   2ndAzGap: 85°   atten: -0.74 [+/-0.40]
Location Uncertainty: 68%ConfEllipse:   minHorUnc: 12km   maxHorUnc: 13km   azMaxHorUnc: 105°
68%ConfEllipsoid:   semiMajorAxisLength: 24km   majorAxisAzimuth: 33°   majorAxisPlunge: 82°   semiIntermediateAxisLength: 16km   intermediateAxisAzimuth: 290°   intermediateAxisPlunge: 2°   semiMinorAxisLength: 15km
Tsunamigeneic Assesment:
Discriminants: Prob Underwater: <1%
T50Ex: 0.4 [17]    Td: -s [0]    Td*T50Ex: - [0]    To: 1.0s [12]
Closest plate boundaries:
   Eurasia - India [continental convergent boundary]: distance: ~160km
Subduction geometry: none or not available
Decision table (TEST!):
Event type: Subduction Zone Other Thrust/Normal Strike-slip
Compatible close plate boundary?:
 no
 no
 no
Prob underwater:
 <1%
 <1%
 <1%
Td*T50Ex:
   -
   -
   -
Td*To:
     -
     -
     -
Mwp magnitude:
       -
       -
       -
Hypocenter depth:
       10km
       10km
       10km
Slab depth at epicenter:
       n/a
       -
       -
./hypo.1737970421127.map.jpg

First-motion Focal Mechanism (FMAMP_POLARITY):    (Warning: Unreliable solution, qualityCode=C)
Nodal Plane 1: strike: 118°   dip: 47°   rake: -163°
Nodal Plane 2: strike: 17°   dip: 78°   rake: -44°
Quality: azimuthalGap: -1°   stationPolarityCount: 30   misfitWeightCount: 5.8   misfit: 0.08   stationDistributionRatio: 0.61   meanDistP: 30.9   meanDistT: 36.5   qualityCode: C
Method: methodID: smi:net.alomax/focalmec/fmamp_0.0.5X_2016.06.14/_polarity
./hypo.1737970421127.mech.fmamp_polarity.mechanism.jpg
First-motion Focal Mechanism (HASH):    (Warning: Unreliable solution, qualityCode=C)
Nodal Plane 1: strike: 179°   dip: 24°   rake: -86°
Nodal Plane 2: strike: 355°   dip: 66°   rake: -92°
Quality: azimuthalGap: 110°   stationPolarityCount: 30   misfit: 0.19   stationDistributionRatio: 0.69   rmsAngDiffAccPref: 33.97   fracAcc30degPref: 0.56   qualityCode: C
Method: methodID: smi:gov.usgs/focalmec/HASH_1.2
./hypo.1737970421127.mech.hash.mechanism.jpg
First-motion Focal Mechanism (FMAMP_AMP_AREF):    (No solution available)
Nodal Plane 1: strike: 0°   dip: 0°   rake: nan°
Nodal Plane 2: strike: nan°   dip: nan°   rake: nan°
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
./hypo.1737970421127.mech.fmamp_amp_aref.mechanism.jpg
First-motion Focal Mechanism (FMAMP_AMP_MWP):    (No solution available)
Nodal Plane 1: strike: 0°   dip: 0°   rake: nan°
Nodal Plane 2: strike: nan°   dip: nan°   rake: nan°
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
./hypo.1737970421127.mech.fmamp_amp_mwp.mechanism.jpg

Event ID: smi:KOERI/ee/event/1737970421127
Event info last updated: 2025.01.27-10:33:52 UTC
Event first association/location: 2025.01.27-09:43:27 UTC
Software: Early-est 1.2.0 (2016.06.27)
Agency: KOERI