M 5.4 Moderate Earthquake Strikes Near Kokopo, Papua New Guinea

Source: USGS · Papua New Guinea

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A magnitude 5.4 earthquake occurred 140 km south-southwest of Kokopo, Papua New Guinea, at a depth of 35 km. No tsunami advisory was issued.

What this USGS earthquake report tells you, and what most readers miss

This notice was issued by USGS on March 1, 2026 and geographically references Papua New Guinea. 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 regulatory framework behind it, which shapes what remedies (refunds, replacements, recalls, evacuations) are available to affected individuals and who holds statutory responsibility for enforcement.

Most readers skim a notice like this, check whether they are personally affected, and move on. The more useful lens is to read it as a data point about the issuing system: how quickly USGS detected the hazard, how precise the geographic or product-identifier scope is, and whether similar notices have clustered in the same category or region in the last 90 days. Cluster patterns frequently precede a broader regulatory action — a single localized USGS earthquake report is isolated; three of them within a quarter often indicate a supply-chain, infrastructure, or seasonal driver that will keep producing notices until something structural changes.

For decision-making, Areazine pairs each alert with the original agency URL, the full agency name, and a timestamp so you can verify the notice against the primary source before acting on it. Tags on this item (earthquake, seismic, usgs, Papua New Guinea) map to related alerts in the same area of risk — browsing them together gives a clearer picture than any single notice alone, because the shape of an ongoing issue only becomes visible across multiple sequential alerts.

What Happened

A moderate earthquake with a magnitude of 5.4 (mww) was recorded on February 27, 2026, at 19:43 UTC. The seismic event was centered approximately 140 km south-southwest of Kokopo, Papua New Guinea.

Location Details

The earthquake's epicenter was located at coordinates 5.5416°S and 151.8543°E. The event originated at a depth of 35 km. This is classified as an intermediate-depth earthquake, as it occurred within the 20 to 70 km range below the surface.

Impact Assessment

There are currently no felt reports associated with this event in the source data. No tsunami advisory, watch, or warning has been issued following the tremor (tsunami status: 0). The USGS has not assigned a specific alert level color to this event, and the status is currently listed as reviewed.

What You Should Know

Earthquakes of this magnitude (M 5.0-5.9) are considered moderate and can cause damage to poorly constructed buildings, though they typically result in little to no damage to earthquake-resistant structures. Residents in the surrounding area should be mindful of the potential for aftershocks. In the event of further seismic activity, safety officials recommend the "Drop, Cover, and Hold On" protocol.

Source

Data provided by the USGS Earthquake Hazards Program.

Original source: USGS Official Notice ↗

All Earthquakes →

Frequently Asked Questions

Common questions about this USGS earthquake report.

What is this USGS earthquake report about?
A magnitude 5.4 earthquake occurred 140 km south-southwest of Kokopo, Papua New Guinea, at a depth of 35 km. No tsunami advisory was issued.
Which agency issued this alert?
This alert was issued by USGS. The original notice is available at the source link at the bottom of this article.
How severe is this alert?
This alert is classified as "medium" severity. Stay informed and follow agency guidance.
What area is affected?
This alert affects Papua New Guinea. Check with USGS for the most current geographic scope.
Where can I find more Earthquakes updates?
Browse the full Earthquakes feed on Areazine at areazine.com/earthquakes/ for the latest updates from USGS and other agencies.