Right now
2 other detections within 20 km in the last 24 hours, the nearest 16 km from here.
Reported by IRIS 184 days ago.
No stronger detection stands among the 6 recorded within 20 km of this point since 17 March 2026 — 5 others scored the same.
What the source measured
IRIS reported: BISMARCK SEA
IRIS recorded magnitude 4.8 at a depth of 10 km.
The seismic region given by the source is BISMARCK SEA.
Nearby, since 17 March 2026
- March 17, 2026 · score 7 · 0.0 km
- March 17, 2026 · score 7 · 0.0 km
- March 17, 2026 · score 7 · 10.8 km
How we know
One source: IRIS. Not yet confirmed by a second, independent source.
Our own score for this event is 7 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 v1. Rows carrying other versions were judged by different rules and are not directly comparable.
Event Data
| Type | Earthquakes |
| Severity | Low |
| Calamity Score (ours) | 7 / 100 |
| Legacy data-support index | 0.59/1 |
| Coordinates | -3.0569, 146.0211 |
| Timestamp | 2026-03-17T10:33:48.000Z |
| Source | https://ds.iris.edu/ds/nodes/dmc/tools/event/12083337 |
Physical priority index · v1. 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: iris. Occurrence: 2026-03-17T10:33:48.000Z.
First archived: 2026-03-17T12:09:23.851Z. 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
Technical Details
| Mag | 4.8 |
| Depth | 10 |
| MagType | mb |
| Region | BISMARCK SEA |
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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