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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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5.0

Pagan region, Northern Mariana Islands

20 October 2026, 05:54:15 (+03) 2026-10-20 02:54:15 UTC

3 sources: EMSC, USGS, GFZ mb
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Magnitude
5.0 mb
Depth
129.4 km
Coordinates
18.2529, 146.0345
Data consistency
98/100

Regional activity (100 km)

Last 24 hours
0
Last 7 days
0
Last 30 days
2

Approximate energy released

≈ 477 t TNT

2.00e+12 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

4 earthquakes

By magnitude

  • M0 0
  • M1 0
  • M2 0
  • M3 0
  • M4 3
  • 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 3
  • 150+ km 1

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
PAGAN REG., N. MARIANA ISLANDS
 5.0 mb 149.0 km 02:54:17.750 Δt 1.78 sn · 6.65 km · ΔM 0 Original record
USGS Earthquake Hazards Program Displayed
Pagan region, Northern Mariana Islands
 5.0 mb 129.4 km 02:54:15.972 Δt 0 sn · 0 km · ΔM 0 Original record
GFZ GEOFON
Mariana Islands
 5.0 mb 101.0 km 02:54:13.590 Δt 2.38 sn · 1.35 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. 20.10.2026 09:48:05 · EMSC · update

    depth: 129.4 → 149 latitude: 18.2529 → 18.1962 longitude: 146.0345 → 146.0136 time: 2026-10-20T02:54:15.972+00:00 → 2026-10-20T02:54:17.750+00:00

  2. 20.10.2026 06:11:00 · SISTEM · recompute

    depth: 129.4 → 129.36 source count: 2 → 3 review status: automatic → reviewed confirming sources: emsc,gfz → emsc,usgs,gfz preferred source: 3 → 4

  3. 20.10.2026 06:09:50 · SISTEM · recompute

    depth: 101 → 129.4 latitude: 18.246 → 18.2529 longitude: 146.045 → 146.0345 time: 2026-10-20T02:54:13.590Z → 2026-10-20 02:54:15.972+00:00 source count: 1 → 2 confirming sources: gfz → emsc,gfz preferred source: 5 → 3

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