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Quick report

Barely noticed Light shaking Strong shaking

Urgent earthquake reported

USGS LIVE FEED

5.9

Significant magnitude

Tambolaka, Indonesia

Tectonic earthquake

Nearby volcano: Sangeang Api · ~95 mi · proximity only

2h ago 46 km deep

Event intelligence

What we know right now

Earthquake Alert separates measured facts, model estimates and public reports so magnitude is not confused with shaking or impact.

ObservedEstimatedReportedForecast

Magnitude + depth

Observed

M5.9 · 46 km

Significant magnitude event. Location: Tambolaka, Indonesia.

Instrumental shaking

Estimated

Strong

USGS MMI 5.1. This describes shaking intensity, not earthquake magnitude.

Public experience

Reported

Moderate

Community intensity CDI 4.5 from felt reports.

Impact context

Estimated

GREEN

USGS PAGER alert level when available. Impact depends on shaking, exposed population and vulnerability.

Scientific products attached

ShakeMapPAGERDYFIGround failure

A ground-failure product is available for landslide/liquefaction context.

Official hazard status

No correlated tsunami alert

No active correlated tsunami warning/advisory/watch is attached to this event in Earthquake Alert.

What experts would say

Plain-language interpretation of current USGS data — not a direct expert quote or earthquake prediction.

This magnitude is large enough to be felt across a broad area. Actual impact depends more on shaking intensity, depth, distance and building vulnerability than magnitude alone.

USGS instrumental intensity is currently MMI 5.1, indicating strong or stronger modeled shaking in the affected area.

Felt reports

USGS Did You Feel It? reports

Reported intensity

Moderate

CDI 4.5 · community reports

Instrumental intensity

Strong

MMI 5.1 · estimated shaking

USGS status

reviewed

Reviewed by USGS

USGS impact

GREEN

PAGER alert level when available

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Official source

Earthquake Alert organizes authoritative seismic and hazard information for rapid understanding. Always follow official emergency guidance for safety decisions.

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