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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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4.3

40 km ESE of San Pedro de Atacama, Chile

25 October 2026, 16:23:15 (+03) 2026-10-25 13:23:15 UTC

2 sources: EMSC, USGS mb
Did you feel this earthquake?
Magnitude
4.3 mb
Depth
136.0 km
Coordinates
-23.0909, -67.8582
Data consistency
88/100

Regional activity (100 km)

Last 24 hours
6
Last 7 days
17
Last 30 days
108

Approximate energy released

≈ 43 t TNT

1.78e+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

132 earthquakes

By magnitude

  • M0 0
  • M1 0
  • M2 52
  • M3 77
  • M4 3
  • M5 0
  • 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 38
  • 150+ km 94

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
ANTOFAGASTA, CHILE
 4.3 mb 128.0 km 13:23:13.790 Δt 1.22 sn · 9.48 km · ΔM 0 Original record
USGS Earthquake Hazards Program Displayed
40 km ESE of San Pedro de Atacama, Chile
 4.3 mb 136.0 km 13:23:15.014 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. 27.10.2026 10:39:00 · EMSC · update

    depth: 140 → 128 latitude: -23.02 → -23.1705 longitude: -68 → -67.8241 magnitude: 4.4 → 4.3 time: 2026-10-25T13:23:15.000+00:00 → 2026-10-25T13:23:13.790+00:00 magnitude type: m → mb

  2. 26.10.2026 17:32:35 · SISTEM · recompute

    depth: 140 → 135.98 latitude: -23.02 → -23.0909 longitude: -68 → -67.8582 magnitude: 4.4 → 4.3 time: 2026-10-25T13:23:15.000Z → 2026-10-25 13:23:15.014+00:00 source count: 1 → 2 review status: automatic → reviewed magnitude type: m → mb confirming sources: emsc → emsc,usgs preferred source: 3 → 4

  3. 25.10.2026 16:37:43 · EMSC · update

    depth: 139.7 → 140 longitude: -67.99 → -68 magnitude type: ml → m

  4. 25.10.2026 16:37:43 · SISTEM · recompute

    depth: 139.7 → 140 longitude: -67.99 → -68 magnitude type: ml → m

  5. 25.10.2026 16:33:35 · EMSC · update

    depth: 137.2 → 139.7 latitude: -23.01 → -23.02 longitude: -68 → -67.99

  6. 25.10.2026 16:33:35 · SISTEM · recompute

    depth: 137.2 → 139.7 latitude: -23.01 → -23.02 longitude: -68 → -67.99

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