Calamity
LowEarthquakesCalamity Score: 15

Earthquakes in Tonga Region

SamoaEMSC

Right now

The most recent data we hold from EMSC arrived 34 minutes ago, and this point is in it.

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

Reported by EMSC today.

It is one of only 4 we have recorded within 20 km of this point since 6 June 2026. The last comparable one was on 6 July 2026.

What the source measured

EMSC reported: TONGA REGION

EMSC recorded magnitude 4.9 at a depth of 10 km.

The seismic region given by the source is TONGA REGION.

Nearby, since 6 June 2026

How we know

One source: EMSC. Not yet confirmed by a second, independent source.

Our own score for this event is 15 out of 100, at 64 % confidence.

The score is ours, computed from intensity, exposed population and local history — not the source’s.

Computed under scoring rules v4. Rows carrying other versions were judged by different rules and are not directly comparable.

Event Data

TypeEarthquakes
SeverityLow
Calamity Score (ours)15 / 100
Our confidence64%
Coordinates-17.7255, -172.2335
Nearest CityApia (436 km)
Impact Tierminor
Timestamp2026-09-08T21:57:33.202Z
Sourcehttps://www.seismicportal.eu/eventdetail.html?unid=20260908_0000340

Score Breakdown

18
intensity
0
population
0
cascading
80
historical

Technical Details

Mag4.9
Depth10
MagTypemb
RegionTONGA REGION
AuthNEIC
SourceId2057497

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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