Assam, India – Earthquakes

This page summarizes earthquakes in Assam (India). The most recently recorded event was a magnitude M2.7 earthquake near Diphu on 2026-10-03 12:22:02 UTC. All event lists and map markers are limited to the last 30 days.

Seismic profile ↓
Earthquakes (last 30 days)
11
Max magnitude (last 30 days)
M4.1
Avg magnitude (last 30 days)
M3.13
Avg depth (last 30 days)
12 km

Seismic profile

Analysis period04 Oct 2025 – 04 Oct 2026Data as of: 04 Oct 2026 · 10:00 UTC
Minimum magnitude

What the data show

Assam · M ≥ 2.0

After source reconciliation, the catalogue contains 77 event entries of M2.0 or above for this area and period, spread over 65 days.

Catalogue entries7704 Oct 2025 – 04 Oct 2026
Strongest recorded earthquakeM4.9Silchar ↗
Depth · median10.0 km77 events with valid depth
Last 30 days11Previous 30 days: 5

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 20268
February 202601 Feb 2026 – 28 Feb 20269
March 202601 Mar 2026 – 31 Mar 20264
April 202601 Apr 2026 – 30 Apr 20263
May 202601 May 2026 – 31 May 20267
June 202601 Jun 2026 – 30 Jun 202619
July 202601 Jul 2026 – 31 Jul 202610
August 202601 Aug 2026 – 31 Aug 20265
September 202601 Sep 2026 – 30 Sep 202611
October 2026 · Partial month01 Oct 2026 – 04 Oct 20261

How strong were the earthquakes?

Catalogue entries · 77

M 2.0 – < 3.028
M 3.0 – < 4.041
M 4.0 – < 5.08
M 5.0 – < 6.00
M ≥ 6.00

At what depth did they occur?

77 events with valid depth

0 – < 30 km72
30 – < 70 km4
70 – < 300 km1
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 days5
Median of the eleven previous 30-day periods5

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 Assam 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 10:00 – 04 Oct 2026 10:00 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).

1 additional source reports were consolidated during source reconciliation.

Events assigned to Assam 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.

  • EMSC75
  • GFZ1
  • USGS1

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

Data as of: 04 Oct 2026 · 10:32 UTC

Map (last 30 days)

< 2 2–4 4–5 ≥ 5

About Assam

Assam is a state in Northeast India, located south of the Eastern Himalayas along the Brahmaputra Valley and Barak River valleys. It covers an area of 78,438 km2 (30,285 sq mi), and is the second largest state in northeastern India by area.

Seismic activity in 2026

In 2026, Assam recorded 78 earthquakes within India. The average magnitude was M3.22. The strongest event reached M4.9.

Based on the number of recorded earthquakes in 2026, Assam is currently among the Top 5 most active regions in India (rank #1 by count).

Located on the India Plate.

Earthquakes in Assam (last 30 days)

M2.7
Diphu
2026-10-03 · 12:22 UTC · 5 km
›
M2.8
Goalpara
2026-09-30 · 00:19 UTC · 10 km
›
M3.0
Matia
2026-09-26 · 03:39 UTC · 5 km
›
M3.0
Phuloni
2026-09-23 · 19:34 UTC · 10 km
›
M3.0
Oraog
2026-09-20 · 07:12 UTC · 5 km
›
M2.5
Nikashi
2026-09-16 · 11:08 UTC · 5 km
›
M3.3
Mazbat
2026-09-14 · 02:29 UTC · 5 km
›
M3.1
Nimkai
2026-09-10 · 19:50 UTC · 39 km
›
M4.1
Dhubri
2026-09-08 · 04:27 UTC · 10 km
›
M4.0
Chotojalenga iV
2026-09-06 · 03:36 UTC · 28 km
›
M2.9
Phuloni
2026-09-05 · 19:58 UTC · 10 km
›