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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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2.8

6 km NNE of Tatums, Oklahoma

27 September 2026, 14:52:20 (+03) 2026-09-27 11:52:20 UTC

2 sources: EMSC, USGS mb_lg
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Magnitude
2.8 mb_lg
Depth
9.3 km
Coordinates
34.5353, -97.4397
Data consistency
90/100

Regional activity (100 km)

Last 24 hours
1
Last 7 days
2
Last 30 days
7

Approximate energy released

≈ 0.2 t TNT

1.00e+9 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

10 earthquakes

By magnitude

  • M0 0
  • M1 6
  • M2 3
  • M3 1
  • M4 0
  • M5 0
  • M6 0
  • M7 0
  • M8+ 0

By depth

  • 0–10 km 7
  • 10–20 km 3
  • 20–40 km 0
  • 40–70 km 0
  • 70–150 km 0
  • 150+ km 0

Largest previous earthquakes within 100 km

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

No records.

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
OKLAHOMA
 2.8 ml 9.3 km 11:52:20.278 Δt 0 sn · 0 km · ΔM 0 Original record
USGS Earthquake Hazards Program Displayed
6 km NNE of Tatums, Oklahoma
 2.8 mb_lg 9.3 km 11:52:20.278 Δt 0 sn · 0 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)

Revision history

  1. 27.09.2026 16:36:50 · SISTEM · recompute

    depth: 9.3 → 9.33 source count: 1 → 2 review status: automatic → reviewed magnitude type: ml → mb_lg confirming sources: emsc → emsc,usgs preferred source: 3 → 4

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