Marlborough, New Zealand – Earthquakes

This page summarizes earthquakes in Marlborough (New Zealand). The most recently recorded event was a magnitude M3.0 earthquake near Marlborough on 2026-10-04 00:28:12 UTC. All event lists and map markers are limited to the last 30 days.

Seismic profile ↓
Earthquakes (last 30 days)
4
Max magnitude (last 30 days)
M3.3
Avg magnitude (last 30 days)
M3.20
Avg depth (last 30 days)
34 km

Seismic profile

Analysis period04 Oct 2025 – 04 Oct 2026Data as of: 04 Oct 2026 · 09:00 UTC
Minimum magnitude

What the data show

Marlborough · M ≥ 2.0

After source reconciliation, the catalogue contains 34 event entries of M2.0 or above for this area and period, spread over 32 days.

Catalogue entries3404 Oct 2025 – 04 Oct 2026
Strongest recorded earthquakeM4.5Marlborough ↗
Depth · median38.3 km34 events with valid depth
Last 30 days4Previous 30 days: 2

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

04 Oct 2025 – 04 Oct 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
October 2025 · Partial month04 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 20266
February 202601 Feb 2026 – 28 Feb 20266
March 202601 Mar 2026 – 31 Mar 20260
April 202601 Apr 2026 – 30 Apr 20263
May 202601 May 2026 – 31 May 20263
June 202601 Jun 2026 – 30 Jun 20265
July 202601 Jul 2026 – 31 Jul 20264
August 202601 Aug 2026 – 31 Aug 20263
September 202601 Sep 2026 – 30 Sep 20263
October 2026 · Partial month01 Oct 2026 – 04 Oct 20261

How strong were the earthquakes?

Catalogue entries · 34

M 2.0 – < 3.00
M 3.0 – < 4.028
M 4.0 – < 5.06
M 5.0 – < 6.00
M ≥ 6.00

At what depth did they occur?

34 events with valid depth

0 – < 30 km11
30 – < 70 km16
70 – < 300 km7
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 days4
Previous 30 days2
Median of the eleven previous 30-day periods3

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 Marlborough 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

04 Oct 2025 – 04 Oct 2026 · M ≥ 2.0

Data and methodology

Analysis period: 04 Oct 2025 09:00 – 04 Oct 2026 09:00 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).

2 additional source reports were consolidated during source reconciliation.

Events assigned to Marlborough 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.

  • EMSC31
  • USGS3

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

Data as of: 04 Oct 2026 · 09:32 UTC

Map (last 30 days)

< 2 2–4 4–5 ≥ 5

About Marlborough

Marlborough District or the Marlborough Region, commonly known simply as Marlborough, is one of the 16 regions of New Zealand, located on the northeast of the South Island.

Seismic activity in 2026

In 2026, Marlborough recorded 35 earthquakes within New Zealand. The average magnitude was M3.58. The strongest event reached M4.5.

By event count in 2026, this region ranks #6 within New Zealand.

Located on the Australia Plate.

Earthquakes in Marlborough (last 30 days)

M3.0
Marlborough
2026-10-04 · 00:28 UTC · 38 km
›
M3.3
Marlborough
2026-09-24 · 19:46 UTC · 8 km
›
M3.2
Marlborough District
2026-09-14 · 06:56 UTC · 75 km
›
M3.3
Marlborough
2026-09-12 · 13:27 UTC · 16 km
›