M 4.9 earthquake — 85 km W of Hihifo, Tonga

Structured official-source report · Published Sep 20, 1:09 AM UTC · Updated Sep 20, 1:05 AM UTC

WATCH · historical

Latest status

USGS reports a magnitude 4.9 earthquake 85 km W of Hihifo, Tonga. Depth: 10 km. Impact has not been assessed by StormScapes.

Where it happened

85 km W of Hihifo, Tonga · -15.961°, -174.597°

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Latest reported details

magnitude: 4.9
depth km: 10
tsunami flag: 0

Missing values are unconfirmed, not zero. Magnitude and alert classifications do not establish casualty totals.

What officials are saying

Read the original reports below for instructions and the latest authoritative assessment. StormScapes does not independently confirm damage or issue evacuation orders.

What happens next

Follow updates from the responsible agency and local emergency management. Reports can change as new information becomes available.

Incident timeline

Sep 20, 1:05 AM UTC · usgs

USGS reports a magnitude 4.9 earthquake 85 km W of Hihifo, Tonga. Depth: 10 km. Impact has not been assessed by StormScapes.

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