M 5.1 Earthquake 211 km ESE of Hihifo, Tonga
Areazine synthesizes this USGS earthquake report directly from USGS's official public data feed. See our methodology for full source attribution and refresh cadence.
A magnitude 5.1 mb earthquake struck 211 km ESE of Hihifo, Tonga at a depth of 10 km.
What this USGS earthquake report tells you, and what most readers miss
This notice was issued by USGS on July 6, 2026 and geographically references Tonga. Its severity classification of "medium" signals how the issuing agency weighs the risk of harm if no action is taken - "critical" and "high" tier alerts typically carry direct consumer actions, while "medium" and "low" tend toward informational guidance or monitoring advisories. The category it belongs to - Earthquakes - determines the monitoring protocol behind it, which shapes what follow-up action (checking for structural damage, watching for aftershocks, reviewing local building codes) is relevant and which agency holds authority over the assessment.
Most readers skim a notice like this, check whether they are personally affected, and move on. The more useful lens is to verify its scope, source, and timestamp, then compare related notices without assuming that one record proves a broader trend.
Areazine pairs this record with the original agency URL so you can check the primary source before acting. Its related labels are earthquake, seismic, usgs, Tonga.
What Happened
A magnitude 5.1 mb earthquake occurred at 211 km ESE of Hihifo, Tonga. The event took place at Unix timestamp 1783349018525 (UTC) and was reviewed by USGS.
Location Details
The earthquake was located at coordinates latitude -16.892, longitude -172.07. It occurred at a depth of 10 km, which is classified as shallow (less than 20 km).
Impact Assessment
No felt reports were recorded. There was no tsunami advisory (tsunami field value: 0) and no alert level was issued.
What You Should Know
Earthquakes of this magnitude (M 5.0-5.9) are considered moderate and can cause damage to poorly constructed buildings. Residents in the region should be aware of the possibility of aftershocks.
Source
https://earthquake.usgs.gov/earthquakes/eventpage/us6000taft (USGS)
Original source: USGS Official Notice ↗
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