Early-est:     Panama - Costa Rica Border Region    2026.04.02-17:11:32.87    q:C      mb:-    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: 4.9X [1]    Mwp: 4.3X [1]    Mwpd: - [0] Region: Panama - Costa Rica Border Region Origin Time: 2026.04.02-17:11:32.87 UTC Hypocenter: lat: 8.40°  lon: -82.86°  [+/-15km]    depth: 30km  [+/-18km] Location Quality: qualityCode:  C     stdErr: 1.4s   assocPhases: 9   usedPhases: 7 minDist: 2.0°   maxDist: 138.5°   AzGap: 225°   2ndAzGap: 237°   atten: -9.90 [+/-0.00] Location Uncertainty: 68%ConfEllipse:   minHorUnc: 11km   maxHorUnc: 15km   azMaxHorUnc: 4° 68%ConfEllipsoid:   semiMajorAxisLength: 19km   majorAxisAzimuth: 164°   majorAxisPlunge: 44°   semiIntermediateAxisLength: 17km   intermediateAxisAzimuth: 28°   intermediateAxisPlunge: 37°   semiMinorAxisLength: 12km Tsunamigeneic Assesment: Discriminants: Prob Underwater: 1% T50Ex: - [0]    Td: -s [0]    Td*T50Ex: - [0]    To: -s [0] Closest plate boundaries:    Cocos \ Panama [subduction zone]: distance: ~70km    Cocos - Nazca [oceanic transform fault]: distance: ~120km    Nazca - Panama [oceanic convergent boundary]: distance: ~120km    Panama - Caribbean [continental convergent boundary]: distance: ~140km    Caribbean / Cocos [subduction zone]: distance: ~460km    North Andes / Nazca [subduction zone]: distance: ~470km Subduction geometry: none or not available Decision table (TEST!): Event type: Subduction Zone Other Thrust/Normal Strike-slip Compatible close plate boundary?:  YES (70km)  no  no Prob underwater:  1%  1%  1% Td*T50Ex:    -    -    - Td*To:      -      -      - Mwp magnitude:        -        -        - Hypocenter depth:        30km        30km        30km 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):    (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
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: 0°   stationPolarityCount: 4   misfit: 0.99   stationDistributionRatio: 0.00   rmsAngDiffAccPref: 0.00   fracAcc30degPref: 0.00   qualityCode: F Method: methodID: smi:gov.usgs/focalmec/HASH_1.2

Event ID: smi:alomax.net_BETA/author/ee/event/1775149892872
Event info last updated: 2026.04.02-18:10:00 UTC
Event first association/location: 2026.04.02-17:24:01 UTC
Software: Early-est 1.2.10 (2024.02.23)
Agency: alomax.net_BETA