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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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5.2

55 km NNW of Ruteng, Indonesia

18 October 2026, 11:00:06 (+03) 2026-10-18 08:00:06 UTC

3 sources: EMSC, USGS, GFZ mb
Magnitude
5.2 mb
Depth
10.0 km
Coordinates
-8.1449, 120.2734
Data consistency
97/100

Regional activity (100 km)

Last 24 hours
3
Last 7 days
34
Last 30 days
211

Approximate energy released

≈ 951 t TNT

3.98e+12 J

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

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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

291 earthquakes

By magnitude

  • M0 0
  • M1 0
  • M2 165
  • M3 112
  • M4 12
  • M5 2
  • M6 0
  • M7 0
  • M8+ 0

By depth

  • 0–10 km 0
  • 10–20 km 260
  • 20–40 km 21
  • 40–70 km 2
  • 70–150 km 1
  • 150+ km 7

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
FLORES REGION, INDONESIA
5.2 mb 10.0 km 08:00:06.180 Δt 0.13 sn · 3.64 km · ΔM 0 Original record
USGS Earthquake Hazards Program Displayed
55 km NNW of Ruteng, Indonesia
5.2 mb 10.0 km 08:00:06.054 Δt 0 sn · 0 km · ΔM 0 Original record
GFZ GEOFON
Flores Region, Indonesia
5.1 Mw 10.0 km 08:00:07.200 Δt 1.15 sn · 8 km · ΔM -0.1 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. 19.10.2026 00:04:38 · EMSC · update

    latitude: -8.1449 → -8.1161 longitude: 120.2734 → 120.2894 time: 2026-10-18T08:00:06.054+00:00 → 2026-10-18T08:00:06.180+00:00

  2. 18.10.2026 11:46:22 · GFZ · update

    magnitude: 5.3 → 5.1 magnitude type: mb → Mw

  3. 18.10.2026 11:15:46 · SISTEM · recompute

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

  4. 18.10.2026 11:15:45 · EMSC · update

    depth: 35 → 10 latitude: -8.186 → -8.1449 longitude: 120.33 → 120.2734 magnitude: 5.3 → 5.2 time: 2026-10-18T08:00:10.350+00:00 → 2026-10-18T08:00:06.054+00:00

  5. 18.10.2026 11:15:45 · SISTEM · recompute

    depth: 35 → 10 latitude: -8.186 → -8.1449 longitude: 120.33 → 120.2734 magnitude: 5.3 → 5.2 time: 2026-10-18T08:00:10.350Z → 2026-10-18 08:00:06.054+00:00

  6. 18.10.2026 11:11:31 · EMSC · update

    depth: 10 → 35 latitude: -8.189 → -8.186 longitude: 120.331 → 120.33 time: 2026-10-18T08:00:07.200+00:00 → 2026-10-18T08:00:10.350+00:00

  7. 18.10.2026 11:11:31 · SISTEM · recompute

    depth: 10 → 35 latitude: -8.189 → -8.186 longitude: 120.331 → 120.33 time: 2026-10-18T08:00:07.200Z → 2026-10-18 08:00:10.350+00:00

  8. 18.10.2026 11:10:31 · SISTEM · recompute

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

  9. 18.10.2026 11:09:27 · GFZ · update

    latitude: -8.187 → -8.189 longitude: 120.333 → 120.331 time: 2026-10-18T08:00:07.150+00:00 → 2026-10-18T08:00:07.200+00:00

  10. 18.10.2026 11:09:27 · SISTEM · recompute

    latitude: -8.187 → -8.189 longitude: 120.333 → 120.331 time: 2026-10-18T08:00:07.150Z → 2026-10-18 08:00:07.200+00:00

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