Right now
The most recent data we hold from ISC arrived 8 hours ago, and this point is in it.
6 other detections within 20 km in the last 24 hours, the nearest 3 km from here.
Reported by ISC today.
No stronger detection stands among the 7 recorded within 20 km of this point since 20 September 2026 — 3 others scored the same. Another comparable one was recorded here earlier the same day. One more was recorded here in the fortnight before it.
What the source measured
ISC reported: Eastern New Guinea region
ISC recorded magnitude 6.4 at a depth of 108 km.
The seismic region given by the source is Eastern New Guinea region.
Urban PEI: 26,274 within a heuristic 150 km radius; not unique people.
Nearby, since 20 September 2026
- September 20, 2026 · score 39 · 3.5 km
- September 20, 2026 · score 27 · 13.6 km
How we know
2 recorded sources include ISC; independence is not established by this count.
Our own score for this event is 39 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
| Type | Earthquakes |
| Severity | High |
| Calamity Score (ours) | 39 / 100 |
| Legacy data-support index | 0.82/1 |
| Coordinates | -5.8800, 146.0700 |
| Nearest City | Goroka (78 km) |
| Urban exposure index (PEI) | 26.3K within 150 km |
| Impact Tier | significant |
| Timestamp | 2026-09-20T07:17:36.900Z |
| Source | http://www.isc.ac.uk/cgi-bin/web-db-run?event_id=646434402&out_format=IMS1.0&request=COMPREHENSIVE |
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: isc. Occurrence: 2026-09-20T07:17:36.900Z.
First archived: 2026-09-20T10:45:09.581Z. Material modification: not recorded.
Retained revisions are prospective; earlier versions may be unavailable. No revision entry does not prove that a record never changed.
2026-09-20T18:59:50.938Z · data_change
Index 39 → 39; severity high → high; version 5 → 5.
2026-09-20T17:33:24.861Z · data_change
Index 39 → 39; severity high → high; version 5 → 5.
Score Breakdown
Technical Details
| Mag | 6.4 |
| Depth | 108 |
| MagType | Mw |
| Region | Eastern New Guinea region |
| Scedc Mag | 6.4 |
| Scedc Depth | 104.33 |
| Scedc MagType | w |
| Scedc Region | ###.# km ( ###.# mi) W (az= 270.6) from Quartzsite, AZ |
| MergedSources | [{"id":"scedc_10254038","source":"scedc","severity":"high","severityValue":64,"timestamp":1789888655624,"latitude":-5.9021,"longitude":146.0922}] |
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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