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Significant earthquake

This summarises a recorded earthquake only; it is not a warning or a prediction. Follow AFAD and the competent authorities for official statements and guidance.

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4.5

south of the Fiji Islands

17 October 2026, 00:26:37 (+03) 2026-10-16 21:26:37 UTC

3 sources: EMSC, USGS, GFZ mb
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Magnitude
4.5 mb
Depth
535.4 km
Coordinates
-23.6209, -179.7966
Data consistency
88/100

Regional activity (100 km)

Last 24 hours
0
Last 7 days
3
Last 30 days
8

Approximate energy released

≈ 85 t TNT

3.55e+11 J

Approximated with the Gutenberg–Richter relation (log E = 1.5 M + 4.8); depends on magnitude type. Gutenberg & Richter (1956).

Did you feel this earthquake?

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Community reports

Based on voluntary reports from users; not an instrumental measurement or official intensity. For official information follow AFAD and Kandilli Observatory announcements.

Impact information reported by sources

  • USGS Earthquake Hazards Program Tsunami flag: No

These values are automatic products of the respective agency, not an assessment by this platform. For tsunami warnings follow the Kandilli Observatory Regional Earthquake-Tsunami Monitoring Center and AFAD.

Nearby places

No records.

Nearby faults (50 km)

No mapped fault within 50 km.

Last year, within 100 km

10 earthquakes

By magnitude

  • M0 0
  • M1 0
  • M2 0
  • M3 0
  • M4 9
  • M5 1
  • M6 0
  • M7 0
  • M8+ 0

By depth

  • 0–10 km 0
  • 10–20 km 0
  • 20–40 km 0
  • 40–70 km 0
  • 70–150 km 0
  • 150+ km 10

Largest previous earthquakes within 100 km

Largest earthquakes in the platform catalogue and entries from historical catalogues (with citation).

Comparison with past records

…

No earlier earthquakes are recorded in this area.

  • Source:

Where does this earthquake come from?

Source comparison

Agency Magnitude Depth Time (UTC) Difference from master Original record
EMSC-CSEM
SOUTH OF FIJI ISLANDS
 4.5 mb 527.0 km 21:26:37.370 Δt 0.24 sn · 9.35 km · ΔM 0 Original record
USGS Earthquake Hazards Program Displayed
south of the Fiji Islands
 4.5 mb 535.4 km 21:26:37.613 Δt 0 sn · 0 km · ΔM 0 Original record
GFZ GEOFON
South of Fiji Islands
 4.5 mb 551.2 km 21:26:37.800 Δt 0.19 sn · 28.58 km · ΔM 0 Original record

This value summarises agreement between sources; it is not a measure of scientific accuracy. Euro-Mediterranean Seismological Centre (EMSC-CSEM) — CC BY 4.0 U.S. Geological Survey (USGS) Earthquake Hazards Program — Public domain (U.S. Government) GEOFON Program, GFZ Helmholtz Centre for Geosciences — CC BY 4.0

Revision history

  1. 17.10.2026 08:33:52 · EMSC · update

    depth: 535.4 → 527 latitude: -23.6209 → -23.6761 longitude: -179.7966 → -179.7272 time: 2026-10-16T21:26:37.613+00:00 → 2026-10-16T21:26:37.370+00:00

  2. 17.10.2026 02:33:50 · SISTEM · recompute

    depth: 535.4 → 535.36 source count: 2 → 3 review status: automatic → reviewed confirming sources: emsc,gfz → emsc,usgs,gfz preferred source: 3 → 4

  3. 17.10.2026 02:33:50 · EMSC · update

    depth: 551.2 → 535.4 latitude: -23.534 → -23.6209 longitude: -179.533 → -179.7966 time: 2026-10-16T21:26:37.800+00:00 → 2026-10-16T21:26:37.613+00:00

  4. 17.10.2026 02:33:50 · SISTEM · recompute

    depth: 551.2 → 535.4 latitude: -23.534 → -23.6209 longitude: -179.533 → -179.7966 time: 2026-10-16T21:26:37.800Z → 2026-10-16 21:26:37.613+00:00

  5. 17.10.2026 00:56:53 · SISTEM · recompute

    source count: 1 → 2 confirming sources: gfz → emsc,gfz preferred source: 5 → 3

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