M5.8 Earthquake Recorded Near Tonga Islands [Sea: Tonga]
INGV Italy reports M5.8 near Tonga Islands [Sea: Tonga], with a 183.6 km catalog depth.
The event began at Mon, 12 Oct 2026 04:38:11 GMT. INGV Italy reports magnitude 5.8, 183.6 km catalog depth, and coordinates -18.766, -174.867.
The catalog location label is Tonga Islands [Sea: Tonga]; no separate nearest-city field was supplied with this solution. By catalog depth, this is an intermediate-depth event. The magnitude-derived energy estimate is 3.16e+13 joules, or about 7,558 tons of TNT equivalent; that calculation describes source energy, not local damage.
The current catalog entry does not include a public felt-report count. No separate intensity or catalog-significance detail is available from this provider record. No official casualty or damage statement is attached to the normalized event evidence.
INGV Italy has not supplied a review status in the normalized record. No station-count, phase-count, residual, gap, or uncertainty fields were supplied in the normalized record. No alternate network solution is attached to this record.
The provider record does not carry a tsunami flag at publication time. Magnitude, depth, and location can change as monitoring networks add observations and review the solution.
At a glance
- Magnitude 5.8
- 183.6 km catalog depth
- 3.16e+13 J magnitude-derived energy estimate
- Origin: Mon, 12 Oct 2026 04:38:11 GMT
- No felt-report count supplied
- INGV Italy monitoring record