Seismic Event Dossier•23:45 Local (14:22 UTC)(proprio ora)

Earthquake near
Papua, Indonesia

A magnitude 8.2 (MW) earthquake occurred on 1914-05-26, 23:45 local time (14:22 UTC) (proprio ora), centered 135 km SE of Biak (Indonesia). The hypocenter was located at a shallow depth of 15 km. Primary telemetry verified by USGS.

Historical Landmark Earthquake

#27 of All Time

Curated Global Seismic Archive (1700–Present)

Top-100 Earthquakes

Magnitude 8.2 historical earthquake occurring on 1914-05-26 in Indonesia. Associated with the Unnamed Fault (Active Fault). Documented casualties: > 1,000.

Documented Fatalities> 1,000

Fault KinematicsActive Fault

Equivalent Energy30.09 Mt TNT

Magnitudo

M 8.2

30.09 Mt TNT

Profondità

15 km

shallow (Crostale superficiale)

Impatto PAGER

red

> 1,000 fatalities

Feriti: > 5,000 · ~42.2M avvertito

Mappa interattiva di epicentro e faglie

1.98°S, 136.94°E

Faglia5 km

Unnamed Fault

Active Fault · ~15.0 mm/yr

Felt byMMI III+

~42.2M exposed

~16.7M strong shaking

Primary SolutionUSGS

USGS#iscgem913984reviewed

1 agencies reporting

Setting2.0°S

Indonesia

Continental / Inland crustal

Seismic Activity & Aftershock Sequence

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

Hover or tap a point to inspect aftershocks and risk probability curve.

<35 km (superficiale)35–70 km (intermedia)>70 km (profonda)Scossa principale

Verified Disaster & Impact Assessment

Official emergency management data cross-checked against multi-agency wires

Continuous verification

Casualties

Damage assessment in progress

Tsunami Status

No tsunami threat

NOAA PTWC & regional buoys

Citizen Felt Reports

No felt reports submitted

Macroseismic DYFI verification

Aftershock Sequence

Monitoring

Aftershocks expected (Omori law)

LightGBM hazard model forecast

Agency Discrepancy Matrix (Cross-Network Verification)

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

Network / Source	Magnitude (Scale & Diff)	Depth & Diff	Epicenter & Shift (Δd)	Consensus	Event ID / Data
USGS United States Geological Survey · Global / US	M8.2(Mw)Ref	15.0 kmRef	-1.98°, 136.94°Origin	Authoritative	iscgem913984

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

3 centri abitati

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

Town	Distance	Intensity	Popolazione
Biak · Papua	135 km	MMI VIII	103,610
Nabire · Papua	220 km	MMI VII	43,898
Timika · Papua	286 km	MMI VII	26,021

Tectonic setting

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

Earthquake near Papua, Indonesia