Earthquakes / EVENT RECORD

M 4.5 - South Sandwich Islands region

USGS · Every measurement below belongs to the selected record.

Read the source-series history ↗

View recordCaptured 2026-10-14 23:13:52 UTC

Around the epicentre

Regional view · markers are locations, not affected areas

● This earthquake ● Nearby recorded activityRegional map

Magnitude

M 4.5

Scale: mb

Depth

139.58 km

from location

Reported by people

Not published

Number of felt reports

USGS review

reviewed

Review does not imply final measurements

What the record tells us

USGS reports a magnitude 4.5 earthquake in South Sandwich Islands region, at a depth of 139.58 km.

Detailed source data captured 2026-10-14 23:13:52 UTC.

Measurements & confidence

Event time (UTC): 2026-10-13 02:16:57.992 UTC
Source updated (UTC): 2026-10-13 21:57:35.040 UTC
Location: -58.142°, -26.206°
Stations used for location: 34
Horizontal error: 13.37 km
Depth error: 6.823 km
Magnitude error: 0.107

Errors are the source’s reported uncertainty estimates, not guaranteed bounds. A depth marked “operator assigned” was fixed during analysis.

Shaking & impact

Instrumental intensity: Not published
Felt-report intensity: Not published
PAGER impact alert: Not published

No published assessment does not mean no shaking or no impact. A magnitude value alone cannot establish damage or a tsunami warning.

Shaking map · not in this captured record

PAGER impact assessment · not in this captured record

Did You Feel It? reports · not in this captured record

Fault-motion solution · not in this captured record

Nearby seismic activity

Within 500 km · M2.5+ · seven days before the event through the latest query, up to seven days after

1 nearby records

10-06

10-07

10-08

10-09

10-10

10-11

10-12

10-13

10-14

Query window: 2026-10-06 02:16:57 to 2026-10-14 23:13:52 UTC. This is spatial proximity, not an identified aftershock sequence.

M4.9South Sandwich Islands region2026-10-07 04:39:26 UTC

359 km away · 10 km deep ↗

View the USGS catalogue query ↗

The record as it develops

This timeline begins when our journal started capturing details. It is not a complete USGS revision history.

Captured 2026-10-13 21:58:49 UTC
First detailed capture · M4.5 · 139.58 km deep · 1 nearby records
Source updated 2026-10-13 21:57:35 UTC
Captured 2026-10-13 23:13:53 UTC
Updated capture · M4.5 · 139.58 km deep · 1 nearby records
Source updated 2026-10-13 21:57:35 UTC
Captured 2026-10-14 00:28:48 UTC
Updated capture · M4.5 · 139.58 km deep · 1 nearby records
Source updated 2026-10-13 21:57:35 UTC
Captured 2026-10-14 01:43:48 UTC
Updated capture · M4.5 · 139.58 km deep · 1 nearby records
Source updated 2026-10-13 21:57:35 UTC
Captured 2026-10-14 02:43:48 UTC
Updated capture · M4.5 · 139.58 km deep · 1 nearby records
Source updated 2026-10-13 21:57:35 UTC
Captured 2026-10-14 03:58:48 UTC
Updated capture · M4.5 · 139.58 km deep · 1 nearby records
Source updated 2026-10-13 21:57:35 UTC
Captured 2026-10-14 05:14:10 UTC
Updated capture · M4.5 · 139.58 km deep · 1 nearby records
Source updated 2026-10-13 21:57:35 UTC
Captured 2026-10-14 06:14:11 UTC
Updated capture · M4.5 · 139.58 km deep · 1 nearby records
Source updated 2026-10-13 21:57:35 UTC
Captured 2026-10-14 07:28:49 UTC
Updated capture · M4.5 · 139.58 km deep · 1 nearby records
Source updated 2026-10-13 21:57:35 UTC
Captured 2026-10-14 08:43:49 UTC
Updated capture · M4.5 · 139.58 km deep · 1 nearby records
Source updated 2026-10-13 21:57:35 UTC
Captured 2026-10-14 09:58:48 UTC
Updated capture · M4.5 · 139.58 km deep · 1 nearby records
Source updated 2026-10-13 21:57:35 UTC
Captured 2026-10-14 11:13:50 UTC
Updated capture · M4.5 · 139.58 km deep · 1 nearby records
Source updated 2026-10-13 21:57:35 UTC
Captured 2026-10-14 12:13:51 UTC
Updated capture · M4.5 · 139.58 km deep · 1 nearby records
Source updated 2026-10-13 21:57:35 UTC
Captured 2026-10-14 13:28:49 UTC
Updated capture · M4.5 · 139.58 km deep · 1 nearby records
Source updated 2026-10-13 21:57:35 UTC
Captured 2026-10-14 14:43:49 UTC
Updated capture · M4.5 · 139.58 km deep · 1 nearby records
Source updated 2026-10-13 21:57:35 UTC
Captured 2026-10-14 15:58:49 UTC
Updated capture · M4.5 · 139.58 km deep · 1 nearby records
Source updated 2026-10-13 21:57:35 UTC
Captured 2026-10-14 17:13:55 UTC
Updated capture · M4.5 · 139.58 km deep · 1 nearby records
Source updated 2026-10-13 21:57:35 UTC
Captured 2026-10-14 18:28:57 UTC
Updated capture · M4.5 · 139.58 km deep · 1 nearby records
Source updated 2026-10-13 21:57:35 UTC
Captured 2026-10-14 19:43:56 UTC
Updated capture · M4.5 · 139.58 km deep · 1 nearby records
Source updated 2026-10-13 21:57:35 UTC
Captured 2026-10-14 20:58:51 UTC
Updated capture · M4.5 · 139.58 km deep · 1 nearby records
Source updated 2026-10-13 21:57:35 UTC
Captured 2026-10-14 22:13:51 UTC
Updated capture · M4.5 · 139.58 km deep · 1 nearby records
Source updated 2026-10-13 21:57:35 UTC
Captured 2026-10-14 23:13:52 UTC
Updated capture · M4.5 · 139.58 km deep · 1 nearby records
Source updated 2026-10-13 21:57:35 UTC

Magnitude is not shaking

Magnitude describes the earthquake’s size. The shaking experienced at a place depends on distance, depth, local ground conditions and the rupture.

Depth needs context

A reported depth describes the location of the earthquake underground. Some solutions use an assigned depth; uncertainty and review status matter.

Nearby does not mean aftershock

Our regional search finds events by distance and time. Establishing an aftershock sequence requires seismological assessment.

Read the original USGS record ↗

This is a source-linked archive. Source measurements and assessments can change. An archived bulletin is not evidence that a warning is currently active.

In the daily journal

13 October 2026 ↗

SOURCE ID usgs:us6000u1xy