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Seismic Event Dossier14:13 Local (08:43 UTC)(agora mesmo)

M 8.0 earthquake Janakpur, Nepal

A magnitude 8.0 (MW) earthquake occurred on 1934-01-15, 14:13 local time (08:43 UTC) (agora mesmo), centered 85 km E of Ramechhap (Nepal). The hypocenter was located at a shallow depth of 15 km. Primary telemetry verified by USGS.

Historical Landmark Earthquake

#19 of All Time

Curated Global Seismic Archive (1700–Present)

Top-100 Earthquakes

A magnitude 8.0 earthquake struck ⁨Janakpur, Nepal⁩ on 15 de janeiro de 1934. Source: ⁨Main Himalayan Thrust⁩. Documented deaths: 10,600.

Documented Fatalities10,600Source: NOAA NCEI Significant Earthquake Database
Fault KinematicsActive Fault
Equivalent Energy15.08 Mt TNT

Magnitude

MW
M 8.0

15.08 Mt TNT

Profundidade

15 km
15 km

shallow (Crosta superficial)

Impacto PAGER

red
> 1,000 fatalities

Feridos: > 5,000 · ~276.2M sentido

Mapa interativo do epicentro e das falhas

27.27°N, 86.94°E
Falha5 km
Cavalgamento Principal do Himalaia
Active Fault · ~15.0 mm/yr
Felt byMMI III+
~276.2M exposed
~62.6M strong shaking
Primary SolutionUSGS
USGS#iscgem904745reviewed
1 agencies reporting
Setting27.3°N
Himalaias e arco do Nepal
Continental / Inland crustal

Seismic Activity & Aftershock Sequence

Timeline of foreshocks, main rupture, aftershocks and machine learning risk probability evolution.

M0.0M4.5M9.0100%50%0%Sismo principal14 de jan., 1615 de jan., 0415 de jan., 1616 de jan., 0416 de jan., 1617 de jan., 0417 de jan., 1618 de jan., 04M8.0
Hover or tap a point to inspect aftershocks and risk probability curve.
<35 km (superficial)35–70 km (intermédio)>70 km (profundo)Sismo principal

Situation Monitoring

Continuous verification
Multi-agency verification of casualties, tsunami alerts, and seismic sequence

Key facts so far

Casualties
Damage assessment in progress
Tsunami Status
No tsunami threat
NOAA PTWC & regional buoys
Citizen Felt Reports
0
No felt reports submitted
Macroseismic DYFI verification
Aftershock Sequence
Monitoring
Aftershocks expected (Omori law)
LightGBM hazard model forecast
Multi-agency seismic telemetry active. Awaiting wire headlines.

Agency Discrepancy Matrix (Cross-Network Verification)

Comparing multi-network solutions from primary and teleseismic monitoring agencies.

Network / SourceMagnitude (Scale & Diff)Depth & DiffEpicenter & Shift (Δd)ConsensusEvent ID / Data
USGS
United States Geological Survey · Global / US
M8.0(Mw)Ref
15.0 kmRef
27.27°, 86.94°Origin
Authoritative
iscgem904745

Why do agency magnitudes differ? Seismological agencies use different instrumentation networks, crustal velocity models, and mathematical magnitude scales (e.g. Moment Magnitude Mw vs Local Richter ML vs Surface Wave Ms). Differences of 0.1–0.3 are common and reflect physical observation geometry rather than errors.

Where it was felt

6 localidades

Shaking intensity is modelled from magnitude, depth and distance (GMPE attenuation), not reported by residents.

TownDistanceIntensity
Rajbiraj · Sagarmatha85 kmMMI VIII
Biratnagar · Bhojpur94 kmMMI VIII
Siliguri · West Bengal162 kmMMI VII
Lalitpur · Bhaktapur165 kmMMI VII
Gangtok · Sikkim166 kmMMI VII
Kathmandu · Bhaktapur168 kmMMI VII

Tectonic setting

Nearest mapped active fault: Main Himalayan Thrust, 5 km away, slip rate ~15.0 mm/yr (GEM Global Active Faults).

Perfil sísmico regional

Himalaias e arco do Nepal

Veja a monitorização sísmica em direto, referências históricas de perigo, modelos de deslizamento das falhas e intervalos de recorrência desta zona.