Northern Aegean, Greece – Earthquakes

This page summarizes earthquakes in Northern Aegean (Greece). The most recently recorded event was a magnitude M1.8 earthquake near Municipal Unit of Pythagoreio on 2026-09-04 23:58:34 UTC. All event lists and map markers are limited to the last 30 days.

Seismic profile ↓
Earthquakes (last 30 days)
33
Max magnitude (last 30 days)
M3.3
Avg magnitude (last 30 days)
M1.98
Avg depth (last 30 days)
9 km

Seismic profile

Analysis period07 Sep 2025 – 07 Sep 2026Data as of: 07 Sep 2026 · 15:00 UTC
Minimum magnitude

What the data show

Northern Aegean · M ≥ 2.0

After source reconciliation, the catalogue contains 68 event entries of M2.0 or above for this area and period, spread over 36 days.

Catalogue entries6807 Sep 2025 – 07 Sep 2026
Strongest recorded earthquakeM4.4Lesbos Regional Unit ↗
Depth · median9.7 km68 events with valid depth
Last 30 days11Previous 30 days: 39

These figures describe the stored catalogue. Recording, magnitude types and geographic attribution may vary by source and period; completeness has not been established.

07 Sep 2025 – 07 Sep 2026

Earthquakes by month

M ≥ 2.0

Each bar counts events within the selected period. Hatched months are only partially included.

View data table
MonthAnalysis periodCatalogue entries
September 2025 · Partial month07 Sep 2025 – 30 Sep 20250
October 202501 Oct 2025 – 31 Oct 20250
November 202501 Nov 2025 – 30 Nov 20250
December 202501 Dec 2025 – 31 Dec 20250
January 202601 Jan 2026 – 31 Jan 20260
February 202601 Feb 2026 – 28 Feb 20260
March 202601 Mar 2026 – 31 Mar 20260
April 202601 Apr 2026 – 30 Apr 20260
May 202601 May 2026 – 31 May 20260
June 202601 Jun 2026 – 30 Jun 202616
July 202601 Jul 2026 – 31 Jul 202634
August 202601 Aug 2026 – 31 Aug 202616
September 2026 · Partial month01 Sep 2026 – 07 Sep 20262

How strong were the earthquakes?

Catalogue entries · 68

M 2.0 – < 3.060
M 3.0 – < 4.07
M 4.0 – < 5.01
M 5.0 – < 6.00
M ≥ 6.00

At what depth did they occur?

68 events with valid depth

0 – < 30 km67
30 – < 70 km1
70 – < 300 km0
300 – 750 km0

0 events without valid depth are excluded here.

Depth · median

Half of the available values lie on either side of the median; ties are possible.

Current period in context

Last 30 days11
Previous 30 days39
Median of the eleven previous 30-day periods0

Same magnitude threshold, separate periods. Differences may also reflect changes in recording. No hazard level or forecast is inferred.

Where were earthquakes recorded?

Events assigned to Northern Aegean in the stored location data are analysed. This is not a radius search. Missing or different attributions are excluded.

The interactive map complements the event links on this page.

Marker size and colour indicate magnitude.

Strongest recorded earthquake

07 Sep 2025 – 07 Sep 2026 · M ≥ 2.0

Data and methodology

Analysis period: 07 Sep 2025 15:00 – 07 Sep 2026 15:00 UTC

Data and methodology

Reports are first reconciled using existing event associations. Additional reports from different sources are consolidated only when every pair is within 5 seconds, 10 km and 0.5 magnitude units, source groups do not overlap and exactly one group matches. Ambiguous cases remain separate. The preferred report determines magnitude, time and area; period and magnitude filters are applied afterwards. The start is included and the end excluded (UTC).

6 additional source reports were consolidated during source reconciliation.

Events assigned to Northern Aegean in the stored location data are analysed. This is not a radius search. Missing or different attributions are excluded.

These figures describe the stored catalogue. Recording, magnitude types and geographic attribution may vary by source and period; completeness has not been established.

Source reports used

The preferred report of each group is counted. Source priority follows the earthquake list. Different magnitude types and recording gaps limit comparability.

  • EMSC62
  • NOA4
  • AFAD1
  • USGS1

The profile is recalculated hourly from the earthquake catalogue. Later source revisions may also change historical values.

Data as of: 07 Sep 2026 · 15:32 UTC

Map (last 30 days)

< 2 2–4 4–5 ≥ 5

Seismic activity in 2026

In 2026, Northern Aegean recorded 179 earthquakes within Greece. The average magnitude was M2.04. The strongest event reached M4.4.

By event count in 2026, this region ranks #13 within Greece.

Located on the Aegean Sea Plate.

Earthquakes in Northern Aegean (last 30 days)

M1.8
Municipal Unit of Pythagoreio
2026-09-04 · 23:58 UTC · 11 km
›
M1.8
Lesbos Regional Unit
2026-09-04 · 22:30 UTC · 13 km
›
M2.1
Municipal Unit of Vathy
2026-09-04 · 05:22 UTC · 7 km
›
M1.9
Plomari
2026-09-04 · 05:00 UTC · 7 km
›
M0.6
Samos Regional Unit
2026-09-03 · 06:17 UTC · 7 km
›
M1.2
Samos Regional Unit
2026-09-02 · 21:06 UTC · 7 km
›
M1.7
Lesbos Regional Unit
2026-09-02 · 18:08 UTC · 7 km
›
M1.5
Molyvos
2026-09-02 · 05:57 UTC · 11 km
›
M2.3
Lesbos Regional Unit
2026-09-02 · 05:06 UTC · 12 km
›
M2.5
Samos Regional Unit
2026-08-31 · 13:31 UTC · 5 km
›
M2.5
Lemnos Regional Unit
2026-08-29 · 17:53 UTC · 35 km
›
M1.3
Samos Regional Unit
2026-08-26 · 20:24 UTC · 7 km
›
M1.5
Samos Regional Unit
2026-08-26 · 19:33 UTC · 8 km
›
M1.7
Samos Regional Unit
2026-08-26 · 13:10 UTC · 7 km
›
M1.7
Samos Regional Unit
2026-08-25 · 12:53 UTC · 17 km
›
M1.4
Samos Regional Unit
2026-08-24 · 14:05 UTC · 7 km
›
M2.3
Argennos
2026-08-24 · 10:25 UTC · 10 km
›
M1.4
Samos Regional Unit
2026-08-24 · 04:16 UTC · 19 km
›
M1.6
Samos Regional Unit
2026-08-23 · 13:05 UTC · 7 km
›
M1.6
Lesbos Regional Unit
2026-08-23 · 07:20 UTC · 14 km
›
M1.8
Samos Regional Unit
2026-08-22 · 10:13 UTC · 7 km
›
M2.8
Chios Regional Unit
2026-08-21 · 03:51 UTC · 6 km
›
M0.8
Samos Regional Unit
2026-08-18 · 23:32 UTC · 7 km
›
M2.2
Chios Regional Unit
2026-08-18 · 01:54 UTC · 10 km
›
M1.9
Chios Regional Unit
2026-08-17 · 10:55 UTC · 11 km
›
M2.0
Chios Regional Unit
2026-08-17 · 03:51 UTC · 6 km
›
M1.9
Chios Regional Unit
2026-08-17 · 03:25 UTC · 6 km
›
M1.9
Eresos
2026-08-15 · 19:03 UTC · 11 km
›
M1.9
Lepetymnos
2026-08-13 · 02:23 UTC · 13 km
›
M1.2
Samos Regional Unit
2026-08-11 · 19:16 UTC · 7 km
›
M2.0
Skala Sykamineas
2026-08-10 · 11:54 UTC · 11 km
›
M3.3
Lesbos Regional Unit
2026-08-10 · 11:13 UTC · 13 km
›
M2.0
Municipal Unit of Vathy
2026-08-08 · 18:43 UTC · 1 km
›