Reported by IRIS 92 days ago.
It is the 3rd strongest of the 6 detections recorded within 20 km of this point since 31 May 2026.
What the source measured
IRIS reported: FIJI ISLANDS REGION
IRIS recorded magnitude 4.6 at a depth of 560 km.
The seismic region given by the source is FIJI ISLANDS REGION.
Nearby, since 31 May 2026
- May 31, 2026 · score 5 · 0.0 km
- June 12, 2026 · score 5 · 2.1 km
- May 31, 2026 · score 7 · 4.3 km
How we know
One source: IRIS. Not yet confirmed by a second, independent source.
Our own score for this event is 5 out of 100, at 57 % confidence.
The score is ours, computed from intensity, exposed population and local history — not the source’s.
Event Data
| Type | Earthquake |
| Severity | low |
| Calamity Score (ours) | 5 / 100 |
| Our confidence | 57% |
| Coordinates | -19.7215, -177.7737 |
| Timestamp | 2026-05-31T19:41:54.000Z |
| Source | https://ds.iris.edu/ds/nodes/dmc/tools/event/12114032 |
Score Breakdown
Technical Details
| Mag | 4.6 |
| Depth | 559.65 |
| MagType | mb |
| Region | FIJI ISLANDS REGION |
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 10 February 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.
Want to know when something happens near Tonga?
Calamity.live data shows a earthquake event with CalamityScore 5/100, in Fiji Islands Region (Tonga), based on data from iris. Source: Calamity.live, a platform aggregating real-time data from 185 scientific monitoring sources.