Calamity
LowEarthquakesCS: 5 · v5

Earthquakes 43 km SE of Madang, Papua New Guinea

Papua New GuineaUSGS

Right now

The most recent data we hold from USGS arrived 88 minutes ago, and this point is not in it. We record detections, not passes: an absence is not proof that nothing is there.

One other detection within 20 km in the last 24 hours, <1 km from here.

Reported by USGS today.

It is one of only 2 we have recorded within 20 km of this point since 16 September 2026. Another comparable one was recorded here earlier the same day. One more was recorded here in the fortnight before it.

What the source measured

USGS reported: 43 km SE of Madang, Papua New Guinea

USGS recorded magnitude 4.6 at a depth of 60 km.

How we know

2 recorded sources include USGS; independence is not established by this count.

Our own score for this event is 5 out of 100.

This is our versioned heuristic index, not source severity or a calibrated probability. Urban PEI does not count unique people.

Computed under scoring rules v5. Rows carrying other versions were judged by different rules and are not directly comparable.

Event Data

TypeEarthquakes
SeverityLow
Calamity Score (ours)5 / 100
Legacy data-support index0.67/1
Coordinates-5.5399, 146.0172
Nearest CityMadang (44 km)
Urban exposure index (PEI)0 within 30 km
Impact Tierminor
Timestamp2026-09-16T19:37:05.143Z
Sourcehttps://earthquake.usgs.gov/earthquakes/eventpage/us7000thx7

Physical priority index · v5. Heuristic priority, not calibrated probability, predictive accuracy or damage. The legacy data-support index combines assigned source support and field availability. Urban PEI is distance-weighted and does not count unique people; zero does not establish that nobody is present. Model cards.

Source and revision timeline

Source: usgs. Occurrence: 2026-09-16T19:37:05.143Z.

First archived: 2026-09-16T21:31:41.834Z. Material modification: not recorded.

Retained revisions are prospective; earlier versions may be unavailable. No revision entry does not prove that a record never changed.

Score Breakdown

12
intensity
0
Urban PEI term
0
Scenario weight
6
Recorded reference / batch anomaly

Technical Details

Mag4.6
Depth59.86
Tsunamifalse
Sig326
Emsc Mag4.6
Emsc Depth59.9
Emsc MagTypemb
Emsc RegionEASTERN NEW GUINEA REG., P.N.G.
Emsc AuthNEIC
Emsc SourceId2061264
MergedSources[{"id":"emsc_20260916_0000281","source":"emsc","severity":"low","severityValue":27.599999999999998,"timestamp":1789587425143,"latitude":-5.5399,"longitude":146.0172}]

Safety Information

If you feel shaking: Drop, Cover, and Hold On. Move away from windows, heavy objects, and exterior walls. After shaking stops, check for injuries and structural damage. Be prepared for aftershocks, which can occur minutes to months after the mainshock. Follow instructions from local emergency management authorities.

Series begins 8 March 2026. Comparisons refer to that period only. Collection gap: 14-26 August 2026.

This data is aggregated algorithmically from scientific sources. Not a replacement for official emergency warnings.

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