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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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4.9

115 km SW of Puerto Madero, Mexico

17 October 2026, 04:03:00 (+03) 2026-10-17 01:03:00 UTC

3 sources: EMSC, USGS, GFZ mb
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Magnitude
4.9 mb
Depth
10.0 km
Coordinates
14.0576, -93.2479
Data consistency
91/100

Regional activity (100 km)

Last 24 hours
4
Last 7 days
15
Last 30 days
105

Approximate energy released

≈ 338 t TNT

1.41e+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

126 earthquakes

By magnitude

  • M0 0
  • M1 0
  • M2 1
  • M3 54
  • M4 70
  • M5 1
  • M6 0
  • M7 0
  • M8+ 0

By depth

  • 0–10 km 24
  • 10–20 km 75
  • 20–40 km 11
  • 40–70 km 9
  • 70–150 km 7
  • 150+ km 0

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
OFF COAST OF CHIAPAS, MEXICO
 4.9 mb 10.0 km 01:03:00.760 Δt 0.74 sn · 6.93 km · ΔM 0 Original record
USGS Earthquake Hazards Program Displayed
115 km SW of Puerto Madero, Mexico
 4.9 mb 10.0 km 01:03:00.020 Δt 0 sn · 0 km · ΔM 0 Original record
GFZ GEOFON
Near Coast of Chiapas, Mexico
 5.0 mb 10.0 km 01:03:02.150 Δt 2.13 sn · 21.31 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. 17.10.2026 08:35:57 · EMSC · update

    latitude: 14.0576 → 14.1113 longitude: -93.2479 → -93.2809 time: 2026-10-17T01:03:00.020+00:00 → 2026-10-17T01:03:00.760+00:00

  2. 17.10.2026 04:18:14 · SISTEM · recompute

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

  3. 17.10.2026 04:18:13 · EMSC · update

    depth: 29 → 10 latitude: 14.2556 → 14.0576 longitude: -93.2438 → -93.2479 magnitude: 5 → 4.9 time: 2026-10-17T01:03:04.650+00:00 → 2026-10-17T01:03:00.020+00:00

  4. 17.10.2026 04:18:13 · SISTEM · recompute

    depth: 29 → 10 latitude: 14.2556 → 14.0576 longitude: -93.2438 → -93.2479 magnitude: 5 → 4.9 time: 2026-10-17T01:03:04.650Z → 2026-10-17 01:03:00.020+00:00

  5. 17.10.2026 04:12:39 · SISTEM · recompute

    source count: 1 → 2 confirming sources: emsc → emsc,gfz

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