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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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4.7

39 km SSW of Serrezuela, Argentina

28 October 2026, 10:02:12 (+03) 2026-10-28 07:02:12 UTC

3 sources: EMSC, USGS, GFZ mb
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Magnitude
4.7 mb
Depth
186.3 km
Coordinates
-30.9564, -65.5684
Data consistency
96/100

Regional activity (100 km)

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

Approximate energy released

≈ 169 t TNT

7.08e+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

7 earthquakes

By magnitude

  • M0 0
  • M1 0
  • M2 6
  • M3 0
  • M4 1
  • M5 0
  • M6 0
  • M7 0
  • M8+ 0

By depth

  • 0–10 km 1
  • 10–20 km 3
  • 20–40 km 2
  • 40–70 km 0
  • 70–150 km 0
  • 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
CORDOBA, ARGENTINA
 4.7 mb 178.0 km 07:02:11.740 Δt 0.34 sn · 7.74 km · ΔM 0 Original record
USGS Earthquake Hazards Program Displayed
39 km SSW of Serrezuela, Argentina
 4.7 mb 186.3 km 07:02:12.084 Δt 0 sn · 0 km · ΔM 0 Original record
GFZ GEOFON
Cordoba Province, Argentina
 4.6 mb 203.8 km 07:02:12.520 Δt 0.44 sn · 8.07 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. 28.10.2026 10:38:37 · EMSC · update

    depth: 186.3 → 178 latitude: -30.9564 → -30.9233 longitude: -65.5684 → -65.4971 time: 2026-10-28T07:02:12.084+00:00 → 2026-10-28T07:02:11.740+00:00

  2. 28.10.2026 10:19:43 · SISTEM · recompute

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

  3. 28.10.2026 10:19:41 · SISTEM · recompute

    depth: 203.8 → 186.3 latitude: -31.024 → -30.9564 longitude: -65.537 → -65.5684 magnitude: 4.6 → 4.7 time: 2026-10-28T07:02:12.520Z → 2026-10-28 07:02:12.084+00:00 source count: 1 → 2 confirming sources: gfz → emsc,gfz preferred source: 5 → 3

  4. 28.10.2026 10:10:10 · GFZ · update

    depth: 204.2 → 203.8 latitude: -31.023 → -31.024 longitude: -65.539 → -65.537

  5. 28.10.2026 10:10:10 · SISTEM · recompute

    depth: 204.2 → 203.8 latitude: -31.023 → -31.024 longitude: -65.539 → -65.537

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